HOLL, K. D. AND J. CAIRNS, JR. (Department of Biology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0406). Vegetational community development on reclaimed coal surface mines in Virginia. Bull. Torrey Bot. Club 121: 327-337. 1994.-Coal surface mining has had an immense impact on the landscape of the Appalachian region. This study investigated the composition of the vegetational communities of 18 reclaimed coal surface mined sites at different stages of succession and 5 sites in the surrounding hardwoods. While many species common in the hardwood forests are found in reclaimed sites, the vegetational community composition of older reclaimed sites is far from approximating the composition of the reference hardwood sites. Herbaceous species richness is similar on all sites, while tree species richness increases with site age. Vegetational structure of reclaimed sites differs substantially from the surrounding hardwoods. Although reclaimed sites host many of the more common vegetational species, the role of reclaimed sites in the conservation of the flora of this region appears to be limited.
{"title":"Vegetational community development on reclaimed coal surface mines in Virginia1","authors":"K. Holl, John Cairns join","doi":"10.2307/2997006","DOIUrl":"https://doi.org/10.2307/2997006","url":null,"abstract":"HOLL, K. D. AND J. CAIRNS, JR. (Department of Biology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0406). Vegetational community development on reclaimed coal surface mines in Virginia. Bull. Torrey Bot. Club 121: 327-337. 1994.-Coal surface mining has had an immense impact on the landscape of the Appalachian region. This study investigated the composition of the vegetational communities of 18 reclaimed coal surface mined sites at different stages of succession and 5 sites in the surrounding hardwoods. While many species common in the hardwood forests are found in reclaimed sites, the vegetational community composition of older reclaimed sites is far from approximating the composition of the reference hardwood sites. Herbaceous species richness is similar on all sites, while tree species richness increases with site age. Vegetational structure of reclaimed sites differs substantially from the surrounding hardwoods. Although reclaimed sites host many of the more common vegetational species, the role of reclaimed sites in the conservation of the flora of this region appears to be limited.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"327"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68413649","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}
(Acer rubrum L.) during old field succession in the North Carolina Piedmont: Age structure of red maple in young pine stands. Bull. Torrey Bot. Club 121: 357-359. 1994.-The age structure of red maple (Acer rubrum L.) in two agricultural fields that were abandoned 16 and 20 yr ago was investigated in order to determine the timing of this species' invasion during the North Carolina piedmont old field successional sequence. At the 20 yr old site, red maples in the 6-12 yr age classes accounted for 78% of the individuals measured, and individuals in the 2-5 and 13-20 yr age classes were poorly represented. Individuals in the 2-7 yr age classes made up 86% of the red maples sampled at the 16 yr old site. These data suggest that most successful red maple establishment in the early phase of the piedmont successional sequence does not occur until 6-9 yr after abandonment of the field. The results of this study contrast with those identified by Rankin and Pickett's (1989) study of red maple invasion in a New Jersey old field, which indicated that most successful invaders established within the first 2 yr after abandonment. Local and regional variation in the opening and closing of establishment windows for red maple during old field successional sequences may result from differences in climate, soils, seed predation, seed availability, site size and shape, or herbivory.
{"title":"Invasion of red maple (Acer rubrum L.) during old field succession in the North Carolina Piedmont: Age structure of red maple in young pine stands","authors":"Patricia A. Peronil","doi":"10.2307/2997009","DOIUrl":"https://doi.org/10.2307/2997009","url":null,"abstract":"(Acer rubrum L.) during old field succession in the North Carolina Piedmont: Age structure of red maple in young pine stands. Bull. Torrey Bot. Club 121: 357-359. 1994.-The age structure of red maple (Acer rubrum L.) in two agricultural fields that were abandoned 16 and 20 yr ago was investigated in order to determine the timing of this species' invasion during the North Carolina piedmont old field successional sequence. At the 20 yr old site, red maples in the 6-12 yr age classes accounted for 78% of the individuals measured, and individuals in the 2-5 and 13-20 yr age classes were poorly represented. Individuals in the 2-7 yr age classes made up 86% of the red maples sampled at the 16 yr old site. These data suggest that most successful red maple establishment in the early phase of the piedmont successional sequence does not occur until 6-9 yr after abandonment of the field. The results of this study contrast with those identified by Rankin and Pickett's (1989) study of red maple invasion in a New Jersey old field, which indicated that most successful invaders established within the first 2 yr after abandonment. Local and regional variation in the opening and closing of establishment windows for red maple during old field successional sequences may result from differences in climate, soils, seed predation, seed availability, site size and shape, or herbivory.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"357"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68413713","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}
{"title":"Lespedeza striata (Fabaceae), an addition to the flora of New York, with notes on its introduction and spread in the eastern United States","authors":"E. Lamont","doi":"10.2307/2997012","DOIUrl":"https://doi.org/10.2307/2997012","url":null,"abstract":"","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"565 1","pages":"377"},"PeriodicalIF":0.0,"publicationDate":"1994-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68413837","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}
MITCHELL, R. S. (Biological Survey, New York State Museum, 3132 C.E.C., Albany, NY 12230), T. E. MAENzA-GMELcH (Dept. of Biology, New York University, 1009 Main Bldg., Washington Square, New York, NY 10003) ANDr J. G. BARsouR (3000 Fishcreek Rd., Saugerties, NY 12477). Utricularia inflata Walt. (Lentibulariaceae), new to New York State. Bull. Torrey Bot. Club 121: 295-297.-The large floating bladderwort (Utricularia inflata Walt.) is reported for the first time from New York State. Pertinent literature and the distribution, morphology and cytology of the species are discussed, comparing it with closely related U. radiata Small, a taxon with which it has been historically confused. Recent discovery of the large bladderwort in Massachusetts is noted, suggesting the possibility that its distribution range may be expanding northward.
MITCHELL, R. S.(生物调查，纽约州博物馆，3132 C.E.C，奥尔巴尼，NY 12230)， T. E. MAENzA-GMELcH(纽约大学生物系，1009 Main building, Washington Square, New York, NY 10003)和J. G. BARsouR (3000 Fishcreek Rd, Saugerties, NY 12477)。华特。(扁桃科)，纽约州新发现。公牛。托里机器人。俱乐部121:295-297。大型漂浮狸藻(Utricularia inflata Walt.)首次在纽约州报道。本文讨论了相关文献和该物种的分布、形态和细胞学，并将其与历史上一直混淆的近亲U. radiata Small分类群进行了比较。最近在马萨诸塞州发现了大型狸藻，这表明其分布范围可能正在向北扩展。
{"title":"Utricularia inflata Walt. (Lentibulariaceae), new to New York State","authors":"R. S. Mitchell, T. Maenza-Gmelch, J. G. Barbour","doi":"10.2307/2997184","DOIUrl":"https://doi.org/10.2307/2997184","url":null,"abstract":"MITCHELL, R. S. (Biological Survey, New York State Museum, 3132 C.E.C., Albany, NY 12230), T. E. MAENzA-GMELcH (Dept. of Biology, New York University, 1009 Main Bldg., Washington Square, New York, NY 10003) ANDr J. G. BARsouR (3000 Fishcreek Rd., Saugerties, NY 12477). Utricularia inflata Walt. (Lentibulariaceae), new to New York State. Bull. Torrey Bot. Club 121: 295-297.-The large floating bladderwort (Utricularia inflata Walt.) is reported for the first time from New York State. Pertinent literature and the distribution, morphology and cytology of the species are discussed, comparing it with closely related U. radiata Small, a taxon with which it has been historically confused. Recent discovery of the large bladderwort in Massachusetts is noted, suggesting the possibility that its distribution range may be expanding northward.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"295-297"},"PeriodicalIF":0.0,"publicationDate":"1994-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997184","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68415561","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}
L. (red maple), is replaced. Fagus grandifolia Ehrh. (American beech) was codominant in the overstory with A. rubrum, and was dominant in the understory. Picea rubens saplings were more frequently found on mounds than other microtopographical positions, but not on mounds that were of recent origin. Picea rubens saplings had an unimodal age-structure characteristic of an even-aged population, which suggests a pattern of episodic regeneration coincident with local windthrow disturbance. Picea rubens that occurred on mounds, rocks, and intact areas tended to be larger and older than those found in pits. The establishment and survival of juvenile P. rubens were limited by the availability of microsites coincident with good seed years, and the suitability of microsites for growth once stems were established. Terminal and lateral growth increments of P. rubens saplings were similar among microtopographical positions and between reference and limed subcatchments before and in the two years after liming. In 1992, the terminal increment of P. rubens was not different from the 1991 terminal increment on treated subcatchments, but in reference subcatchments the terminal increment was less than in 1991. The potential role of P. rubens in future forests is discussed.
{"title":"Forest community composition and juvenile red spruce (Picea rubens) age-structure and growth patterns in an Adirondack watershed","authors":"P. Smallidge, D. Leopold","doi":"10.2307/2997008","DOIUrl":"https://doi.org/10.2307/2997008","url":null,"abstract":"L. (red maple), is replaced. Fagus grandifolia Ehrh. (American beech) was codominant in the overstory with A. rubrum, and was dominant in the understory. Picea rubens saplings were more frequently found on mounds than other microtopographical positions, but not on mounds that were of recent origin. Picea rubens saplings had an unimodal age-structure characteristic of an even-aged population, which suggests a pattern of episodic regeneration coincident with local windthrow disturbance. Picea rubens that occurred on mounds, rocks, and intact areas tended to be larger and older than those found in pits. The establishment and survival of juvenile P. rubens were limited by the availability of microsites coincident with good seed years, and the suitability of microsites for growth once stems were established. Terminal and lateral growth increments of P. rubens saplings were similar among microtopographical positions and between reference and limed subcatchments before and in the two years after liming. In 1992, the terminal increment of P. rubens was not different from the 1991 terminal increment on treated subcatchments, but in reference subcatchments the terminal increment was less than in 1991. The potential role of P. rubens in future forests is discussed.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"345-356"},"PeriodicalIF":0.0,"publicationDate":"1994-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68413706","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}
BowERs, JAIcE E. (U.S. Geological Survey, 1675 W. Anklam Road, Tucson, AZ 85745) AND MARK A. DIMMITr (Arizona-Sonora Desert Museum, 2021 N. Kinney Road, Tucson, AZ 85743). Flowering phenology of six woody plants in the northern Sonoran Desert. Bull. Torrey Bot. Club 121: 215-229. 1994.-Climatic and flowering data from a site in the northern Sonoran Desert of southern Arizona were used to define flowering triggers and developmental requirements for 6 woody plants. These formulations were then used to predict flowering dates at a second northern Sonoran Desert site. It was determined that flowering is triggered by rain in Larrea tridentata (DC.) Cov., Fouquieria splendens Engelm., Encelia farinosa A. Gray, Ambrosia deltoidea (A. Gray) Payne and Acacia constricta Benth., and that flowering is triggered by photoperiod in Cercidium microphyllum (Torr.) Rose & Johnst. The base temperature for floral development in L. tridentata, F. splendens, E. farinosa, A. deltoidea and C. microphyllum is about 10?C. Their mean degree-day requirements range from 414 to 719. Acacia constricta requires 522 degree-days above 15?C. Minimum rainfall triggers varied from 9 mm forAmbrosia to 20 mm for Encelia. Flowering time in C. microphyllum may reflect phylogenetic constraints, while flowering time in F. splendens may be strongly influenced by pollinator availability. Flowering times of the remaining species seem constrained more by climate than by biotic considerations such as phylogeny, seed germination and competition for pollinators.
{"title":"Flowering phenology of six woody plants in the northern Sonoran Desert","authors":"J. E. Bowers, M. Dimmitt, A. Mark, A. Gray","doi":"10.2307/2997177","DOIUrl":"https://doi.org/10.2307/2997177","url":null,"abstract":"BowERs, JAIcE E. (U.S. Geological Survey, 1675 W. Anklam Road, Tucson, AZ 85745) AND MARK A. DIMMITr (Arizona-Sonora Desert Museum, 2021 N. Kinney Road, Tucson, AZ 85743). Flowering phenology of six woody plants in the northern Sonoran Desert. Bull. Torrey Bot. Club 121: 215-229. 1994.-Climatic and flowering data from a site in the northern Sonoran Desert of southern Arizona were used to define flowering triggers and developmental requirements for 6 woody plants. These formulations were then used to predict flowering dates at a second northern Sonoran Desert site. It was determined that flowering is triggered by rain in Larrea tridentata (DC.) Cov., Fouquieria splendens Engelm., Encelia farinosa A. Gray, Ambrosia deltoidea (A. Gray) Payne and Acacia constricta Benth., and that flowering is triggered by photoperiod in Cercidium microphyllum (Torr.) Rose & Johnst. The base temperature for floral development in L. tridentata, F. splendens, E. farinosa, A. deltoidea and C. microphyllum is about 10?C. Their mean degree-day requirements range from 414 to 719. Acacia constricta requires 522 degree-days above 15?C. Minimum rainfall triggers varied from 9 mm forAmbrosia to 20 mm for Encelia. Flowering time in C. microphyllum may reflect phylogenetic constraints, while flowering time in F. splendens may be strongly influenced by pollinator availability. Flowering times of the remaining species seem constrained more by climate than by biotic considerations such as phylogeny, seed germination and competition for pollinators.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"215"},"PeriodicalIF":0.0,"publicationDate":"1994-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997177","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68415377","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}
on wet stream bottoms, Tsuga-Pinus on wet to mesic stream terraces, mixed mesophytic species within a mesic upland cove, and mixed Quercus on mesic to dry upland slopes. Based on tree recruitment and radial growth patterns, low-intensity exogenous disturbances occurred every 30-60 yr during the presettlement era. Extensive logging during the mid- I 840s was evident throughout the area, and, along with subsequent disturbances, had a profound effect on current forest composition and structure. Tree species responded differently to major anthropogenic disturbance, in terms of growth rate and canopy positioning. In general, Pinus strobus L., Liriodendron tulipifera L. and Quercus responded favorably to disturbance, whereas Acer, Betula alleghaniensis Britton and Tsuga canadensis (L.) Carr recovered more slowly. Current forest age structures reflect different disturbance patterns and rates of recovery, and were categorized as either even-aged, uneven-aged consisting of 2 distinct even-aged cohorts, or uneven-aged with extended recruitment (multiple small-scale disturbances). Successional patterns currently exhibited in all forests may be drastically altered in the future from overbrowsing by whitetailed deer (Odocoileus virginianus) and/or intense shrub competition on tree regeneration.
{"title":"Forest composition, structure, and disturbance history of the Alan Seeger Natural Area, Huntington County, Pennsylvania","authors":"Gregory J. NowackiI, M. Abrams","doi":"10.2307/2997182","DOIUrl":"https://doi.org/10.2307/2997182","url":null,"abstract":"on wet stream bottoms, Tsuga-Pinus on wet to mesic stream terraces, mixed mesophytic species within a mesic upland cove, and mixed Quercus on mesic to dry upland slopes. Based on tree recruitment and radial growth patterns, low-intensity exogenous disturbances occurred every 30-60 yr during the presettlement era. Extensive logging during the mid- I 840s was evident throughout the area, and, along with subsequent disturbances, had a profound effect on current forest composition and structure. Tree species responded differently to major anthropogenic disturbance, in terms of growth rate and canopy positioning. In general, Pinus strobus L., Liriodendron tulipifera L. and Quercus responded favorably to disturbance, whereas Acer, Betula alleghaniensis Britton and Tsuga canadensis (L.) Carr recovered more slowly. Current forest age structures reflect different disturbance patterns and rates of recovery, and were categorized as either even-aged, uneven-aged consisting of 2 distinct even-aged cohorts, or uneven-aged with extended recruitment (multiple small-scale disturbances). Successional patterns currently exhibited in all forests may be drastically altered in the future from overbrowsing by whitetailed deer (Odocoileus virginianus) and/or intense shrub competition on tree regeneration.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"277"},"PeriodicalIF":0.0,"publicationDate":"1994-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997182","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68415496","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}
LECK, M. A. (Department of Biology, Rider College, Lawrenceville, NJ 08648-3599), C. C. BASKIN AND J. M. BAsKiN (School of Biological Sciences, University of Kentucky, Lexington, KY 40506-0225). Germination ecology of Bidens laevis (Asteraceae) from a tidal freshwater wetland. Bull. Torrey Bot. Club 121: 230-239. 1994.-Eight or more weeks of cold stratification (5?C) were required to break dormancy in achenes of Bidens laevis (L.) BSP from a tidal freshwater wetland. When achenes began to come out of dormancy, they germinated to 50% first at 35/20?C, and then with additional stratification the minimum temperature for 50% germination decreased to 1 5/6?C. Germination of stratified achenes was inhibited by darkness and was completely prevented by hypoxia (inundation in closedjars). Seeds inundated in openjars and those in Petri dishes, however, germinated to > 80%. Germination declined sharply with depth of burial (0, 1, and 5 cm). Moisture regime (drained, saturated, and inundated) also significantly affected germination, but afterripening condition (cold greenhouse or 5?C) altered the effect. Interaction between depth of burial and moisture regime was significant (P 1 yr) following winter afterripening of achenes in the field.
LECK, m.a.(莱德学院生物系，劳伦斯维尔，新泽西08648-3599)，C. C. BASKIN AND J. M. BASKIN(肯塔基大学生物科学学院，列克星敦，肯塔基40506-0225)。潮汐淡水湿地中野蔷薇(菊科)萌发生态学研究。公牛。托里机器人。俱乐部121:230-239。1994.-需要8周或更长时间的冷分层(5℃)才能打破白刺草(L.)瘦果的休眠。BSP来自潮汐淡水湿地。当瘦果开始从休眠状态中出来时，它们在35/20?再加层，萌发50%的最低温度降至1.5 /6℃。成层瘦果的萌发受到黑暗的抑制，缺氧(在密闭的罐子中淹没)完全阻止。然而，淹没在开罐和培养皿中的种子发芽率为80%。随着埋深(0,1和5cm)的增加，萌发率急剧下降。水分条件(排水、饱和和淹水)也显著影响种子的萌发，但催熟条件(低温温室或5℃)改变了这种影响。田间瘦果冬熟后，埋深与水分状况的交互作用显著(P 1 yr)。
{"title":"Germination ecology of Bidens laevis (Asteraceae) from a tidal freshwater wetland1","authors":"M. A. Leck, C. Baskin, J. Baskin","doi":"10.2307/2997178","DOIUrl":"https://doi.org/10.2307/2997178","url":null,"abstract":"LECK, M. A. (Department of Biology, Rider College, Lawrenceville, NJ 08648-3599), C. C. BASKIN AND J. M. BAsKiN (School of Biological Sciences, University of Kentucky, Lexington, KY 40506-0225). Germination ecology of Bidens laevis (Asteraceae) from a tidal freshwater wetland. Bull. Torrey Bot. Club 121: 230-239. 1994.-Eight or more weeks of cold stratification (5?C) were required to break dormancy in achenes of Bidens laevis (L.) BSP from a tidal freshwater wetland. When achenes began to come out of dormancy, they germinated to 50% first at 35/20?C, and then with additional stratification the minimum temperature for 50% germination decreased to 1 5/6?C. Germination of stratified achenes was inhibited by darkness and was completely prevented by hypoxia (inundation in closedjars). Seeds inundated in openjars and those in Petri dishes, however, germinated to > 80%. Germination declined sharply with depth of burial (0, 1, and 5 cm). Moisture regime (drained, saturated, and inundated) also significantly affected germination, but afterripening condition (cold greenhouse or 5?C) altered the effect. Interaction between depth of burial and moisture regime was significant (P 1 yr) following winter afterripening of achenes in the field.","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"230"},"PeriodicalIF":0.0,"publicationDate":"1994-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997178","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68415418","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}
{"title":"Rediscovery of Solidago sempervirens var. mexicana (Asteraceae) in New York, with Notes on Its Taxonomic History","authors":"E. Lamont","doi":"10.2307/2997183","DOIUrl":"https://doi.org/10.2307/2997183","url":null,"abstract":"","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"292"},"PeriodicalIF":0.0,"publicationDate":"1994-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997183","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68415547","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}
{"title":"Biosystematic Monograph of the Genus Cucumis (Cucurbitaceae)-Botanical Identification of Cucumbers and Melons.","authors":"M. Nee, Joseph H. Kirkbride join","doi":"10.2307/2997187","DOIUrl":"https://doi.org/10.2307/2997187","url":null,"abstract":"","PeriodicalId":9453,"journal":{"name":"Bulletin of the Torrey Botanical Club","volume":"121 1","pages":"300"},"PeriodicalIF":0.0,"publicationDate":"1994-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.2307/2997187","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68415093","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：