HaseltoniaPub Date : 2024-06-06DOI: 10.2985/026.031.0107
Gideon F. Smith, Filip Verloove
{"title":"Notes on the Reproductive Biology of Agave fourcroydes (Asparagaceae), a Widely Naturalized Species with Invasive Tendencies","authors":"Gideon F. Smith, Filip Verloove","doi":"10.2985/026.031.0107","DOIUrl":"https://doi.org/10.2985/026.031.0107","url":null,"abstract":"Abstract: Several species of Agave have been recorded as becoming naturalized—even invasive—in, especially, mild-climate parts of the world. Most of these species use multiple reproductive strategies, in particular the production of vast numbers of bulbils on the peduncle and side branches of spent inflorescences. One such species, A. fourcroydes, in the vernacular known as henequen, is widely cultivated, especially for the extraction of fibers, also referred to as henequen, from its leaves, but also as an ornamental. To date, this species was only on one occasion reported as producing capsules and seed. We here record a further instance of the setting of viable seed by A. fourcroydes, a strategy that, in addition to the production of thousands of bulbils on a massive inflorescence, as well as through the production of basal sprouts, can contribute to the ease with which it spreads and becomes established in suitable habitats.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141377756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2024-06-06DOI: 10.2985/026.031.0108
Frank Reichenbacher
{"title":"Calescent Drought, Fortuitous Climates and Decline of a Sonoran Desert Cucurbitaceous Vine","authors":"Frank Reichenbacher","doi":"10.2985/026.031.0108","DOIUrl":"https://doi.org/10.2985/026.031.0108","url":null,"abstract":"Abstract: Tumamoca macdougalii, the Tumamoc globeberry, is a delicate vine of Arizona, Sonora, and northern Sinaloa. The property of the Desert Laboratory on Tumamoc Hill, Pima County, Arizona, is the type locality of both the genus and T. macdougalii. T. macdougalii was listed as an endangered species in 1986 and then delisted in 1993. Three T. macdougalii populations have been monitored during the summer growing season from 2015 to the present. Populations at two of the three sites had been documented at least once in the 1980s–1990s, and at one site individual plants from 1984–1995 and 2007–2014, and then every 2–4 weeks from 2015–2022. The third site was discovered in 2007 and then monitored only from 2015–the present. Specific field procedures evolved over the years, but since 2015 plant size, stage class, flower bud, flower, and fruit counts, and plant condition were recorded. A total of 205 visits among the three sites were made from 1984–2022. Populations declined dramatically between 1996–2006, remained remarkably resilient at very low numbers from 2007–2014, and then experienced a partial rebound in 2015-2018. Survival analysis and population viability analysis indicate very slow recovery. Analyses of climate indices in relation to T. macdougalii population declines show that drought and warming temperatures began immediately following the completion of required post-delisting monitoring and are likely responsible for dramatic population declines from 1996–2006. A brief upswing in favorable climate parameters from 2015–2019 resulted in partial recovery, but since then numbers have declined again, though not as steeply. A recent effort to evaluate status of sites known to support T. macdougalii in Sonora in the late 1980s indicates significant decline in populations paralleling declines in the Tucson area. If T. macdougalii populations are declining in all or a major part of the range, there may be reason to consider putting it back on the list of endangered and threatened species.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141379148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2024-04-19DOI: 10.2985/026.031.0106
Karlla B. Braga, Lucas C. Marinho
{"title":"Similar, But Not Too Similar: Succulent Plants on Carimã Beach, Maranhão, Brazil","authors":"Karlla B. Braga, Lucas C. Marinho","doi":"10.2985/026.031.0106","DOIUrl":"https://doi.org/10.2985/026.031.0106","url":null,"abstract":"","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140683178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2024-02-29DOI: 10.2985/026.031.0101
A. Hankey
{"title":"Two New Ledebouriinae Species from Limpopo Province, South Africa: Drimiopsis gasekhukhunei and Ledebouria waterbergensis (Hyacinthaceae).","authors":"A. Hankey","doi":"10.2985/026.031.0101","DOIUrl":"https://doi.org/10.2985/026.031.0101","url":null,"abstract":"","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140415258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2024-02-29DOI: 10.2985/026.031.0104
J. A. Reyes-Agüero, Carolina Orta-Salazar, C. Heindorf, Eleazar Carranza González
{"title":"Opuntia fortanelli (Cactaceae), a New Species from the Huastec Region of San Luis Potosí, México","authors":"J. A. Reyes-Agüero, Carolina Orta-Salazar, C. Heindorf, Eleazar Carranza González","doi":"10.2985/026.031.0104","DOIUrl":"https://doi.org/10.2985/026.031.0104","url":null,"abstract":"","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140408664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2024-02-29DOI: 10.2985/026.031.0103
V. Steinmann, Y. Ramírez-Amezcua
{"title":"Two New Species and a New State Record of Crassulaceae from Michoacán, Mexico","authors":"V. Steinmann, Y. Ramírez-Amezcua","doi":"10.2985/026.031.0103","DOIUrl":"https://doi.org/10.2985/026.031.0103","url":null,"abstract":"","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140409799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2024-02-29DOI: 10.2985/026.031.0102
Root Gorelick, Radha Veach
{"title":"Southern Range Limit of Cylindropuntia whipplei (Cactaceae) is ‘The Gila’ of New Mexico","authors":"Root Gorelick, Radha Veach","doi":"10.2985/026.031.0102","DOIUrl":"https://doi.org/10.2985/026.031.0102","url":null,"abstract":"","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140410736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2023-12-07DOI: 10.2985/026.030.0108
Yuley Encarnación Piñeyro, William Cinea, L. Majure
{"title":"Towards a Treatment for the Cactus Family (Cactaceae) on Hispaniola: Generic Key, Species Checklist, Nomenclature Assessments and Distribution Notes.","authors":"Yuley Encarnación Piñeyro, William Cinea, L. Majure","doi":"10.2985/026.030.0108","DOIUrl":"https://doi.org/10.2985/026.030.0108","url":null,"abstract":"","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138590243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2023-09-14DOI: 10.2985/026.030.0107
Alberto E. Areces-Mallea
{"title":"Melocactus praerupticola Areces subsp. Pygmaeus (Hoxey, Gdaniec et Ackerman) Areces comb. et stat. nov.: Review of the Miniature Mountain Melocactus Populations of the Greater Antilles","authors":"Alberto E. Areces-Mallea","doi":"10.2985/026.030.0107","DOIUrl":"https://doi.org/10.2985/026.030.0107","url":null,"abstract":"Though they are morphologically very similar, the two unique mountain populations of miniature Melocactus from Puerto Rico and Hispaniola (Dominican Republic) have been treated as different species. After contrasting several living plants and their cultivated descendants from both island-sites over the years, it is concluded that the minor vegetative differences that separate them do not justify species recognition. As a result, the recently described Melocactus pygmaeus Hoxey, Gdaniec and Ackerman from the steep slopes of Sierra de Cayey, Puerto Rico is hereby treated as a subspecies of the previously described Melocactus praerupticola Areces from the rocky cliffs of Constanza, in the central mountains of the Dominican Republic. Likewise, based on vegetative and floral characters, no apparent similarities were found between this praerupticola–pygmaeus complex and M. guitartii León from Cuba.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134912464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
HaseltoniaPub Date : 2023-09-14DOI: 10.2985/026.030.0106
Michael A. Wisnev, Roy Mottram
{"title":"Nomenclatural Note: An Update on Leptocereus","authors":"Michael A. Wisnev, Roy Mottram","doi":"10.2985/026.030.0106","DOIUrl":"https://doi.org/10.2985/026.030.0106","url":null,"abstract":"","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134912470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}