Pub Date : 2018-11-30DOI: 10.3767/blumea.2018.63.02.04
L. Perrie
Based on its morphology and in accordance with modern circumscriptions of genera among the Gleicheniaceae, a new combination in Sticherus is made for the Papua New Guinean fern originally described as Gleichenia hooglandii.
{"title":"Transfer of Papua New Guinea's Gleichenia hooglandii to Sticherus (Gleicheniaceae)","authors":"L. Perrie","doi":"10.3767/blumea.2018.63.02.04","DOIUrl":"https://doi.org/10.3767/blumea.2018.63.02.04","url":null,"abstract":"Based on its morphology and in accordance with modern circumscriptions of genera among the Gleicheniaceae, a new combination in Sticherus is made for the Papua New Guinean fern originally described as Gleichenia hooglandii.","PeriodicalId":232235,"journal":{"name":"Blumea - Biodiversity, Evolution and Biogeography of Plants","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117317866","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 : 2018-11-30DOI: 10.3767/BLUMEA.2018.63.02.10
M. Rodda, A. Lamb, L. Gokusing, S. Rahayu
A new Hoya subspecies from Borneo and Sumatra, Hoya fauziana ssp. angulata is described and illustrated. Both subspecies of Hoya fauziana have long lanceolate leaves, pubescent corollas and prominent ovoid corona lobes. They can be separated by the orientation of the pedicels (straight in H. fauziana ssp. fauziana and angled in H. fauziana ssp. angulata) and the type and position of pubescence of the corolla (tube and lobes pubescent with evident sericeous hairs in H. fauziana ssp. fauziana vs only tube finely pubescent in H. fauziana ssp. angulata).
{"title":"Hoya fauziana ssp. angulata (Apocynaceae, Asclepiadoideae), a new subspecies from Borneo and Sumatra","authors":"M. Rodda, A. Lamb, L. Gokusing, S. Rahayu","doi":"10.3767/BLUMEA.2018.63.02.10","DOIUrl":"https://doi.org/10.3767/BLUMEA.2018.63.02.10","url":null,"abstract":"A new Hoya subspecies from Borneo and Sumatra, Hoya fauziana ssp. angulata is described and illustrated. Both subspecies of Hoya fauziana have long lanceolate leaves, pubescent corollas and prominent ovoid corona lobes. They can be separated by the orientation of the pedicels (straight in H. fauziana ssp. fauziana and angled in H. fauziana ssp. angulata) and the type and position of pubescence of the corolla (tube and lobes pubescent with evident sericeous hairs in H. fauziana ssp. fauziana vs only tube finely pubescent in H. fauziana ssp. angulata).","PeriodicalId":232235,"journal":{"name":"Blumea - Biodiversity, Evolution and Biogeography of Plants","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131605050","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 : 2018-11-30DOI: 10.3767/BLUMEA.2018.63.02.01
P. Pelser, D. Nickrent, J. Barcelona
Rafflesia speciosa is a threatened endo-holoparasitic species. It has several populations in the Central Panay Mountain Range (CPMR) of Panay island and a single population on Negros Island. Because R. speciosa is the only Philippine species of the genus that is not endemic to an individual island, it is a suitable species for improving our understanding of the factors underlying the high island endemism of Philippine Rafflesia. For this purpose and to inform the conservation management of R. speciosa, patterns of genetic diversity and differentiation were studied using 15 microsatellite loci and samples from nine populations. None of these populations shows evidence of inbreeding and R. speciosa has similar levels of heterozygosity as generally observed in outcrossing or perennial plant species. The results of AMOVA and Bayesian cluster analyses indicate that the Negros population is genetically differentiated from the CPMR populations. In addition, it has lower genetic diversity than similar-sized R. speciosa populations. These findings suggest that sea straits potentially provide significant reproductive barriers to Rafflesia species, and are perhaps responsible for their high island endemism. The general lack of genetic differentiation among the CPMR populations as suggested by the AMOVA, PCoA, and STRUCTURE results indicates recent gene flow among them and this finding improves our understanding of the geographical scale and context at which gene flow between Rafflesia populations occurs. Conservation efforts should be targeted towards avoiding further habitat degradation in the Negros population. We also recommend protective status for the entire CPMR and reforestation efforts to mitigate the severe habitat fragmentation, destruction, and degradation in this area.
{"title":"A conservation genetic study of Rafflesia speciosa (Rafflesiaceae): patterns of genetic diversity and differentiation within and between islands","authors":"P. Pelser, D. Nickrent, J. Barcelona","doi":"10.3767/BLUMEA.2018.63.02.01","DOIUrl":"https://doi.org/10.3767/BLUMEA.2018.63.02.01","url":null,"abstract":"Rafflesia speciosa is a threatened endo-holoparasitic species. It has several populations in the Central Panay Mountain Range (CPMR) of Panay island and a single population on Negros Island. Because R. speciosa is the only Philippine species of the genus that is not endemic to an individual island, it is a suitable species for improving our understanding of the factors underlying the high island endemism of Philippine Rafflesia. For this purpose and to inform the conservation management of R. speciosa, patterns of genetic diversity and differentiation were studied using 15 microsatellite loci and samples from nine populations. None of these populations shows evidence of inbreeding and R. speciosa has similar levels of heterozygosity as generally observed in outcrossing or perennial plant species. The results of AMOVA and Bayesian cluster analyses indicate that the Negros population is genetically differentiated from the CPMR populations. In addition, it has lower genetic diversity than similar-sized R. speciosa populations. These findings suggest that sea straits potentially provide significant reproductive barriers to Rafflesia species, and are perhaps responsible for their high island endemism. The general lack of genetic differentiation among the CPMR populations as suggested by the AMOVA, PCoA, and STRUCTURE results indicates recent gene flow among them and this finding improves our understanding of the geographical scale and context at which gene flow between Rafflesia populations occurs. Conservation efforts should be targeted towards avoiding further habitat degradation in the Negros population. We also recommend protective status for the entire CPMR and reforestation efforts to mitigate the severe habitat fragmentation, destruction, and degradation in this area.","PeriodicalId":232235,"journal":{"name":"Blumea - Biodiversity, Evolution and Biogeography of Plants","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114873951","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 : 2016-09-12DOI: 10.3767/blumea.2018.63.02.11
P. Bruggeman
Arisaema gracilentum, a new species of Araceae, belonging to section Arisaema from the Lower Dibang Valley, Arunachal Pradesh State in NE India is described, illustrated and compared with related taxa.
{"title":"Arisaema anatinum, a new species of Arisaema (Araceae) from NE India","authors":"P. Bruggeman","doi":"10.3767/blumea.2018.63.02.11","DOIUrl":"https://doi.org/10.3767/blumea.2018.63.02.11","url":null,"abstract":"Arisaema gracilentum, a new species of Araceae, belonging to section Arisaema from the Lower Dibang Valley, Arunachal Pradesh State in NE India is described, illustrated and compared with related taxa.","PeriodicalId":232235,"journal":{"name":"Blumea - Biodiversity, Evolution and Biogeography of Plants","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123704786","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}