Pub Date : 2008-01-01DOI: 10.5642/ALISO.20082501.02
N. Fraga
Owens Peak lies at the southern end of the Sierra Nevada within the Bureau of Land Management's Owens Peak Wilderness Area in Kern County, California. The study site, ca. 50 square miles, encompasses Owens Peak's eastern watershed, and ranges in elevation from 800-2600 m (2600-8400 ft). Granite rocks of the Sierra Nevada batholith underlie the study area. The eastern watershed of Owens Peak is botanically diverse, with 64 families, 230 genera, and 440 taxa currently documented. Floristic elements within the study area include the southern Sierra Nevada, Great Basin, and Mojave Desert. The flora previously was poorly documented, as discovered through a search of California's largest herbaria (CAS/DS, RSA-POM, UC/JEPS). A total of 56 collecting days was spent in the field between 2002 and 2005. Approximately 1300 vascular plant collections were made within the study area. Several rare taxa are found in the study area, including seven endemic to the southern Sierra Nevada, and two species described in 1988. One species, Lomatium shevockii, is endemic to the study area. Saltugilia latimeri was previously known from several mountain ranges in San Bernardino and Riverside counties, and one disjunct population in Inyo County. The discovery of this species within the study area not only extends its range, but also is a new record for Kern County. The primary objectives of this study were to catalogue, voucher, and create an annotated checklist of the watershed's vascular flora, describe the vegetation patterns, and assess the status of the rare species in the area.
{"title":"The Vascular Flora of the Owens Peak Eastern Watershed, Southern Sierra Nevada, California","authors":"N. Fraga","doi":"10.5642/ALISO.20082501.02","DOIUrl":"https://doi.org/10.5642/ALISO.20082501.02","url":null,"abstract":"Owens Peak lies at the southern end of the Sierra Nevada within the Bureau of Land Management's Owens Peak Wilderness Area in Kern County, California. The study site, ca. 50 square miles, encompasses Owens Peak's eastern watershed, and ranges in elevation from 800-2600 m (2600-8400 ft). Granite rocks of the Sierra Nevada batholith underlie the study area. The eastern watershed of Owens Peak is botanically diverse, with 64 families, 230 genera, and 440 taxa currently documented. Floristic elements within the study area include the southern Sierra Nevada, Great Basin, and Mojave Desert. The flora previously was poorly documented, as discovered through a search of California's largest herbaria (CAS/DS, RSA-POM, UC/JEPS). A total of 56 collecting days was spent in the field between 2002 and 2005. Approximately 1300 vascular plant collections were made within the study area. Several rare taxa are found in the study area, including seven endemic to the southern Sierra Nevada, and two species described in 1988. One species, Lomatium shevockii, is endemic to the study area. Saltugilia latimeri was previously known from several mountain ranges in San Bernardino and Riverside counties, and one disjunct population in Inyo County. The discovery of this species within the study area not only extends its range, but also is a new record for Kern County. The primary objectives of this study were to catalogue, voucher, and create an annotated checklist of the watershed's vascular flora, describe the vegetation patterns, and assess the status of the rare species in the area.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"90 1","pages":"1-29"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-01DOI: 10.5642/ALISO.20082601.04
W. Rossi, A. Weir
Four new species of Cucujomyces (Laboulbeniales) parasitic on Leiodidae (Coleoptera) from Chile are described and illustrated: Cucujomyces dasypelatis on Dasypelates nebulosus, C. gratiellae on Hydnodietus brunneus, C. neohydnobii on Neohydnobius argentinicus, and C. newtonii on Metahydnobius spp. The new taxa are compared with other known species of Cucujomyces. Morphological variation encountered in one of the new species, C. gratiellae, encompasses attributes of both Cucujomyces and Balazucia, necessitating Balazucia to be placed in synonymy under Cucujomyces. On the basis of this, two new combinations, Cucujomyces bilateralis and C. japonicus, are proposed.
{"title":"New Species of Cucujomyces (Laboulbeniales) on Chilean Leiodidae","authors":"W. Rossi, A. Weir","doi":"10.5642/ALISO.20082601.04","DOIUrl":"https://doi.org/10.5642/ALISO.20082601.04","url":null,"abstract":"Four new species of Cucujomyces (Laboulbeniales) parasitic on Leiodidae (Coleoptera) from Chile are described and illustrated: Cucujomyces dasypelatis on Dasypelates nebulosus, C. gratiellae on Hydnodietus brunneus, C. neohydnobii on Neohydnobius argentinicus, and C. newtonii on Metahydnobius spp. The new taxa are compared with other known species of Cucujomyces. Morphological variation encountered in one of the new species, C. gratiellae, encompasses attributes of both Cucujomyces and Balazucia, necessitating Balazucia to be placed in synonymy under Cucujomyces. On the basis of this, two new combinations, Cucujomyces bilateralis and C. japonicus, are proposed.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"92 1","pages":"9-14"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-01DOI: 10.5642/ALISO.20082601.06
K. Terada, M. Hsu, Wen-Jer Wu
Laboulbenia taiwaniana sp. nov. on Craspedophorus formosanus is described from Taiwan and illustrated with photographs. It is characterized by a long, asymmetrical perithecium with an oblique apex and a pale-colored lower wall, a slender, evenly tapered receptacle with cylindrical cell I and II and trapezoidal cell IV, well developed appendages with black septa concentrated in the basal portion of the appendage system, and especially by black septa on the distal end of cell g. Laboulbenia asiatica, which was described from an Asian carabid-"Casnonia sp."-in 1899 and was illustrated in 1908 by Thaxter, is reviewed and compared with L. taiwaniana morphologically.
{"title":"A New Species of Genus Laboulbenia (Laboulbeniales) on Craspedophorus formosanus (Coleoptera, Carabidae) from Taiwan, with a Note on Laboulbenia asiatica","authors":"K. Terada, M. Hsu, Wen-Jer Wu","doi":"10.5642/ALISO.20082601.06","DOIUrl":"https://doi.org/10.5642/ALISO.20082601.06","url":null,"abstract":"Laboulbenia taiwaniana sp. nov. on Craspedophorus formosanus is described from Taiwan and illustrated with photographs. It is characterized by a long, asymmetrical perithecium with an oblique apex and a pale-colored lower wall, a slender, evenly tapered receptacle with cylindrical cell I and II and trapezoidal cell IV, well developed appendages with black septa concentrated in the basal portion of the appendage system, and especially by black septa on the distal end of cell g. Laboulbenia asiatica, which was described from an Asian carabid-\"Casnonia sp.\"-in 1899 and was illustrated in 1908 by Thaxter, is reviewed and compared with L. taiwaniana morphologically.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"26 1","pages":"23-27"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-01DOI: 10.5642/ALISO.20082601.03
W. Rossi, E. Bergonzo
Two new species of Laboulbeniales are described: Laboulbenia parasyphraeae, parasitic on Parasyphraea sp. (Coleoptera, Chrysomelidae, Alticinae), and L. skelleyi, parasitic on Pselaphacus rubricatus and P. signatus (Coleoptera, Erotylidae). Other recorded species are Chaetomyces pinophili, Chitonomyces aurantiacus, Corethromyces ophitis, Dimorphomyces platensis, Dioicomyces anthici, D. cf. notoxi, Hesperomyces coccinelloides, Hydrophilomyces rhynchophorus, Laboulbenia arnaudii, L. funeralis, L. pachystoma, and L. systenae. Six "morphospecies" of Chitonomyces (C. appendiculatus, C. hyalinus, C. prolongatus, C. simplex, C. uncinatus, and C. cf. zonatus) parasitic on a single species of Laccophilus (Dytiscidae) are also reported.
{"title":"NEW AND INTERESTING LABOULBENIALES FROM BRAZIL","authors":"W. Rossi, E. Bergonzo","doi":"10.5642/ALISO.20082601.03","DOIUrl":"https://doi.org/10.5642/ALISO.20082601.03","url":null,"abstract":"Two new species of Laboulbeniales are described: Laboulbenia parasyphraeae, parasitic on Parasyphraea sp. (Coleoptera, Chrysomelidae, Alticinae), and L. skelleyi, parasitic on Pselaphacus rubricatus and P. signatus (Coleoptera, Erotylidae). Other recorded species are Chaetomyces pinophili, Chitonomyces aurantiacus, Corethromyces ophitis, Dimorphomyces platensis, Dioicomyces anthici, D. cf. notoxi, Hesperomyces coccinelloides, Hydrophilomyces rhynchophorus, Laboulbenia arnaudii, L. funeralis, L. pachystoma, and L. systenae. Six \"morphospecies\" of Chitonomyces (C. appendiculatus, C. hyalinus, C. prolongatus, C. simplex, C. uncinatus, and C. cf. zonatus) parasitic on a single species of Laccophilus (Dytiscidae) are also reported.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"26 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2008-01-01DOI: 10.5642/ALISO.20082601.05
S. Santamaría
A new species of fungal genus Triceromyces (Laboulbeniales) is described: Triceromyces benjaminii. The description is based on several thalli found on the insect host Microvelia pygmaea (Heteroptera, Veliidae), collected in two localities from SE Spain. Characteristics of male and female thalli of this dioecious species are discussed and compared with other dioecious taxa. The characteristics of male thalli require some adjustment in generic limits. This is the first species of Triceromyces known to parasitize a species of Microvelia, a semiaquatic heteropteran genus. The new species is described and illustrated with line drawings and photographs. A table collates information on synonymy, hosts, geographical distribution, and salient references pertinent to taxa of Laboulbeniales parasitic on semiaquatic Heteroptera.
{"title":"Laboulbeniales on Semiaquatic Heteroptera. A New Species of Triceromyces (Ascomycota, Laboulbeniales) on Microvelia (Heteroptera, Veliidae) from Spain","authors":"S. Santamaría","doi":"10.5642/ALISO.20082601.05","DOIUrl":"https://doi.org/10.5642/ALISO.20082601.05","url":null,"abstract":"A new species of fungal genus Triceromyces (Laboulbeniales) is described: Triceromyces benjaminii. The description is based on several thalli found on the insect host Microvelia pygmaea (Heteroptera, Veliidae), collected in two localities from SE Spain. Characteristics of male and female thalli of this dioecious species are discussed and compared with other dioecious taxa. The characteristics of male thalli require some adjustment in generic limits. This is the first species of Triceromyces known to parasitize a species of Microvelia, a semiaquatic heteropteran genus. The new species is described and illustrated with line drawings and photographs. A table collates information on synonymy, hosts, geographical distribution, and salient references pertinent to taxa of Laboulbeniales parasitic on semiaquatic Heteroptera.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"26 1","pages":"15-21"},"PeriodicalIF":0.0,"publicationDate":"2008-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-05-14DOI: 10.5642/ALISO.20072301.14
A. Hipp, P. E. Rothrock, A. Reznicek, P. Berry
Phylogenetic analysis of amplified fragment length polymorphisms (AFLP) was used to infer patterns of morphologic and chromosomal evolution in an eastern North American group of sedges (ENA clade I of Carex sect. Ovales). Distance analyses of AFLP data recover a tree that is topologically congruent with previous phylogenetic estimates based on nuclear ribosomal DNA (nrDNA) sequences and provide support for four species groups within ENA clade I. A maximum likelihood method designed for analysis of restriction site data is used to evaluate the strength of support for alternative topologies. While there is little support for the precise placement of the root, the likelihood of topologies in which any of the four clades identified within the ENA clade I is forced to be paraphyletic is much lower than the likelihood of the optimal tree. Chromosome counts for a sampling of species from throughout sect. Ovales are mapped onto the tree, as well as counts for all species in ENA clade I. Parsimony reconstruction of ancestral character states suggest that: (1) Heilborn's hypothesis that more highly derived species in Carex have higher chromosome counts does not apply within sect. Ovales, (2) the migration to eastern North America involved a decrease in average chromosome count within sect. Ovales, and (3) intermediate chromosome counts are ancestral within ENA clade I. A more precise understanding of chromosomal evolution in Carex should be possible using likelihood analyses that take into account the intraspecific polymorphism and wide range of chromosome counts that characterize the genus.
{"title":"Chromosome Number Changes Associated with Speciation in Sedges: a Phylogenetic Study in Carex section Ovales (Cyperaceae) Using AFLP Data","authors":"A. Hipp, P. E. Rothrock, A. Reznicek, P. Berry","doi":"10.5642/ALISO.20072301.14","DOIUrl":"https://doi.org/10.5642/ALISO.20072301.14","url":null,"abstract":"Phylogenetic analysis of amplified fragment length polymorphisms (AFLP) was used to infer patterns of morphologic and chromosomal evolution in an eastern North American group of sedges (ENA clade I of Carex sect. Ovales). Distance analyses of AFLP data recover a tree that is topologically congruent with previous phylogenetic estimates based on nuclear ribosomal DNA (nrDNA) sequences and provide support for four species groups within ENA clade I. A maximum likelihood method designed for analysis of restriction site data is used to evaluate the strength of support for alternative topologies. While there is little support for the precise placement of the root, the likelihood of topologies in which any of the four clades identified within the ENA clade I is forced to be paraphyletic is much lower than the likelihood of the optimal tree. Chromosome counts for a sampling of species from throughout sect. Ovales are mapped onto the tree, as well as counts for all species in ENA clade I. Parsimony reconstruction of ancestral character states suggest that: (1) Heilborn's hypothesis that more highly derived species in Carex have higher chromosome counts does not apply within sect. Ovales, (2) the migration to eastern North America involved a decrease in average chromosome count within sect. Ovales, and (3) intermediate chromosome counts are ancestral within ENA clade I. A more precise understanding of chromosomal evolution in Carex should be possible using likelihood analyses that take into account the intraspecific polymorphism and wide range of chromosome counts that characterize the genus.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"548 1","pages":"193-203"},"PeriodicalIF":0.0,"publicationDate":"2007-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70794946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-01-01DOI: 10.5642/ALISO.20072301.17
L. Campbell, D. Stevenson
Aratitiyopea lopezii is a robust perennial species of Xyridaceae from seasonally saturated, mid- to high-elevation, sandstone and granite sites in northern South America. The species lacks the scapose inflorescence characteristic of Xyridaceae and, having the gestalt of a rhizomatous bromeliad, it is seemingly aberrant in the family. However, closer examination confirms features consistent with the family and the previously noted morphological similarities to Orectanthe. Details of inflorescence structure and floral morphology are presented and compared to other genera of Xyridaceae.
{"title":"Inflorescence Architecture and Floral Morphology of Aratitiyopea lopezii (Xyridaceae)","authors":"L. Campbell, D. Stevenson","doi":"10.5642/ALISO.20072301.17","DOIUrl":"https://doi.org/10.5642/ALISO.20072301.17","url":null,"abstract":"Aratitiyopea lopezii is a robust perennial species of Xyridaceae from seasonally saturated, mid- to high-elevation, sandstone and granite sites in northern South America. The species lacks the scapose inflorescence characteristic of Xyridaceae and, having the gestalt of a rhizomatous bromeliad, it is seemingly aberrant in the family. However, closer examination confirms features consistent with the family and the previously noted morphological similarities to Orectanthe. Details of inflorescence structure and floral morphology are presented and compared to other genera of Xyridaceae.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"23 1","pages":"227-233"},"PeriodicalIF":0.0,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795011","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-01-01DOI: 10.5642/ALISO.20072301.25
E. Judziewicz, L. Clark
Molecular data support Anomochlooideae and Pharoideae as the two most basal extant clades within Poaceae. Anomochlooideae are endemic to the New World and have two tribes and two genera including the widespread Streptochaeteae (3-4 spp.) and the critically endangered Anomochloeae (1 sp.) of coastal Bahia. Brazil. Pharoideae are pantropical with one tribe, three genera, and 14 species; all eight species of Pharus occur only in the New World. Bambusoideae and Ehrhartoideae are sister groups and together form a clade sister to Pooideae, although support for this set of relationships is low. Ehrhartoideae are a worldwide subfamily represented in the New World by three tribes (Ehrharteae |as several introduced species], Oryzeae, and Streptogyneae), eight genera, and 33 species. Bambusoideae, also worldwide, include two tribes, Bambuseae (woody bamboos) and Olyreae (herbaceous bamboos). The native New World members of Bambuseae (21 genera, 359 spp.) are divided into four subtribes (Arundinariinae, Arthrostylidiinae, Chusqueinae, Guaduinae), including the genera Chusquea (136 spp.), Merostachys (46 spp.), Aulonemia (34 spp.), Arthrostylidium (32 spp.), and Guadua (25 spp.). Together they are most diverse in the central and northern Andes and southeastern Brazil (from Santa Catarina to Bahia), with secondary centers of diversity in tropical Mexico, the West Indies. Costa Rica, and the Guayana Highlands of South America, and all (especially Chusquea) have a number of undescribed species especially in the Andes, Guayana Highlands, and mountainous southeastern Brazil. Olyreae (21 genera, 116-120 spp.) are almost exclusively American and are dominated by Olyra (23 spp.) and Pariana (several to 38 spp.), with one monotypic genus endemic to New Guinea (for which a new subtribe, Buergersiochloinae, is proposed) and with one species (Olyra latifolia) occurring in Africa as well as tropical America.
{"title":"Classification and Biogeography of New World Grasses: Anomochlooideae, Pharoideae, Ehrhartoideae, and Bambusoideae","authors":"E. Judziewicz, L. Clark","doi":"10.5642/ALISO.20072301.25","DOIUrl":"https://doi.org/10.5642/ALISO.20072301.25","url":null,"abstract":"Molecular data support Anomochlooideae and Pharoideae as the two most basal extant clades within Poaceae. Anomochlooideae are endemic to the New World and have two tribes and two genera including the widespread Streptochaeteae (3-4 spp.) and the critically endangered Anomochloeae (1 sp.) of coastal Bahia. Brazil. Pharoideae are pantropical with one tribe, three genera, and 14 species; all eight species of Pharus occur only in the New World. Bambusoideae and Ehrhartoideae are sister groups and together form a clade sister to Pooideae, although support for this set of relationships is low. Ehrhartoideae are a worldwide subfamily represented in the New World by three tribes (Ehrharteae |as several introduced species], Oryzeae, and Streptogyneae), eight genera, and 33 species. Bambusoideae, also worldwide, include two tribes, Bambuseae (woody bamboos) and Olyreae (herbaceous bamboos). The native New World members of Bambuseae (21 genera, 359 spp.) are divided into four subtribes (Arundinariinae, Arthrostylidiinae, Chusqueinae, Guaduinae), including the genera Chusquea (136 spp.), Merostachys (46 spp.), Aulonemia (34 spp.), Arthrostylidium (32 spp.), and Guadua (25 spp.). Together they are most diverse in the central and northern Andes and southeastern Brazil (from Santa Catarina to Bahia), with secondary centers of diversity in tropical Mexico, the West Indies. Costa Rica, and the Guayana Highlands of South America, and all (especially Chusquea) have a number of undescribed species especially in the Andes, Guayana Highlands, and mountainous southeastern Brazil. Olyreae (21 genera, 116-120 spp.) are almost exclusively American and are dominated by Olyra (23 spp.) and Pariana (several to 38 spp.), with one monotypic genus endemic to New Guinea (for which a new subtribe, Buergersiochloinae, is proposed) and with one species (Olyra latifolia) occurring in Africa as well as tropical America.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"23 1","pages":"303-314"},"PeriodicalIF":0.0,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-01-01DOI: 10.5642/ALISO.20072401.03
R. Riefner, S. Boyd, R. J. Shlemon
We report the following noteworthy collections of native vascular plants from mima mound fields in coastal Orange County, California: Deschampsia danthonioides, Lepidium strictum, and Sagina saginoides (new county records), Lepidium oblongum var. oblongum (previously excluded from the flora), Deinandra paniculata, Holocarpha virgata subsp. elongata, and Navarretia prostrata (new localities in the county), and Hordeum brachyantherum subsp. californicum (uncommon species of local interest). A herbarium study, preparation of voucher specimens, and a generalized distribution, facultative wetland status, and taxonomic notes, where appropriate, are cited for each taxon. An overview of the mima mound micro-relief associated with coastal terraces in southern California is also provided.
{"title":"NOTES ON NATIVE VASCULAR PLANTS FROM MIMA MOUND-VERNAL POOL TERRAIN AND THE IMPORTANCE OF PRESERVING COASTAL TERRACES IN ORANGE COUNTY, CALIFORNIA","authors":"R. Riefner, S. Boyd, R. J. Shlemon","doi":"10.5642/ALISO.20072401.03","DOIUrl":"https://doi.org/10.5642/ALISO.20072401.03","url":null,"abstract":"We report the following noteworthy collections of native vascular plants from mima mound fields in coastal Orange County, California: Deschampsia danthonioides, Lepidium strictum, and Sagina saginoides (new county records), Lepidium oblongum var. oblongum (previously excluded from the flora), Deinandra paniculata, Holocarpha virgata subsp. elongata, and Navarretia prostrata (new localities in the county), and Hordeum brachyantherum subsp. californicum (uncommon species of local interest). A herbarium study, preparation of voucher specimens, and a generalized distribution, facultative wetland status, and taxonomic notes, where appropriate, are cited for each taxon. An overview of the mima mound micro-relief associated with coastal terraces in southern California is also provided.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"24 1","pages":"19-28"},"PeriodicalIF":0.0,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2007-01-01DOI: 10.5642/ALISO.20072301.41
S. Denham, F. Zuloaga
Paspalum (Poaceae: Panicoideae: Paniceae) includes 330 species distributed mainly in tropical and subtropical regions of America. Due to the large number of species and convergence in many characters, an adequate infrageneric classification is still needed. Studies on Paniceae based on molecular and morphological data have suggested that Paspalum is paraphyletic, including the genus Thrasya, but none of these analyses have included a representative sample of these two genera. In this study, phylogenetic relationships among the informal group Decumbentes of Paspalum, plus subgenera and other informal groups, and the genera Thrasya and Thrasyopsis were estimated. A cladistic analysis under parsimony was performed using a matrix of 50 taxa and 77 morphological and anatomical characters. Different analytical parameters were explored, equally weighing characters and employing implied weights by varying the concavity constant, k, from I to 12. Almost all analyses showed that species of the Decumbentes group and Thrasya form a natural group, supported by the presence of axillary peduncles in the upper foliar sheath, the upper glume slightly shorter than the spikelet, margins of the lower lemma plicate on the upper anthecium, and the upper anthecium without simple papillae. The position of Thrasyopsis is not clear because it varies within the different analyses. The most important clades are discussed as well as diagnostic characters usually employed to distinguish the genera.
{"title":"Phylogenetic Relationships of the Decumbentes Group of Paspalum, Thrasya, and Thrasyopsis (Poaceae: Panicoideae: Paniceae)","authors":"S. Denham, F. Zuloaga","doi":"10.5642/ALISO.20072301.41","DOIUrl":"https://doi.org/10.5642/ALISO.20072301.41","url":null,"abstract":"Paspalum (Poaceae: Panicoideae: Paniceae) includes 330 species distributed mainly in tropical and subtropical regions of America. Due to the large number of species and convergence in many characters, an adequate infrageneric classification is still needed. Studies on Paniceae based on molecular and morphological data have suggested that Paspalum is paraphyletic, including the genus Thrasya, but none of these analyses have included a representative sample of these two genera. In this study, phylogenetic relationships among the informal group Decumbentes of Paspalum, plus subgenera and other informal groups, and the genera Thrasya and Thrasyopsis were estimated. A cladistic analysis under parsimony was performed using a matrix of 50 taxa and 77 morphological and anatomical characters. Different analytical parameters were explored, equally weighing characters and employing implied weights by varying the concavity constant, k, from I to 12. Almost all analyses showed that species of the Decumbentes group and Thrasya form a natural group, supported by the presence of axillary peduncles in the upper foliar sheath, the upper glume slightly shorter than the spikelet, margins of the lower lemma plicate on the upper anthecium, and the upper anthecium without simple papillae. The position of Thrasyopsis is not clear because it varies within the different analyses. The most important clades are discussed as well as diagnostic characters usually employed to distinguish the genera.","PeriodicalId":80410,"journal":{"name":"Aliso","volume":"30 1","pages":"545-562"},"PeriodicalIF":0.0,"publicationDate":"2007-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70795733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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