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Cotyledon tanquana, a New Species from the Tanqua Karoo Region, Western Cape, South Africa 南非西开普省坦夸卡鲁地区坦夸子叶一新种
IF 1.5 4区 生物学
Haseltonia Pub Date : 2020-02-26 DOI: 10.2985/026.026.0101
Van Jaarsveld, J. Ernst
{"title":"Cotyledon tanquana, a New Species from the Tanqua Karoo Region, Western Cape, South Africa","authors":"Van Jaarsveld, J. Ernst","doi":"10.2985/026.026.0101","DOIUrl":"https://doi.org/10.2985/026.026.0101","url":null,"abstract":"A new Cotyledon is described from the Tanqua Karoo in the Western Cape. Cotyledon tanquana is a distinct succulent shrublet from the lower eastern slopes of the Cedarberg Mountains and rocky terrain in the Succulent Karoo. It differs from Cotyledon orbiculata var. orbiculata by its distinctly cuneiform glandular hairy dull-green leaves and short dull-reddish corolla tube 15–17 × 5–8 mm bearing horizontally spreading transversely oblong yellowish squamae 2 × 1 mm, truncate at the apex.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"21 1","pages":"2"},"PeriodicalIF":1.5,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75271281","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}
引用次数: 0
Aloiampelos ciliaris nothovar. gigas (Asphodelaceae Subfam. Alooideae), a New Status for Aloe ciliaris f. gigas
IF 1.5 4区 生物学
Haseltonia Pub Date : 2020-02-26 DOI: 10.2985/026.026.0105
Gideon F. Smith, E. Figueiredo
{"title":"Aloiampelos ciliaris nothovar. gigas (Asphodelaceae Subfam. Alooideae), a New Status for Aloe ciliaris f. gigas","authors":"Gideon F. Smith, E. Figueiredo","doi":"10.2985/026.026.0105","DOIUrl":"https://doi.org/10.2985/026.026.0105","url":null,"abstract":"Abstract: While working on the cytogenetics of a range of alooids (Asphodelaceae subfam. Alooideae) in Lisbon, Portugal, Flávio Resende described several new formae in species of rambling aloe, a group that at the time was interpreted as section Macrifoliae Haw. in Aloe L. This group is nowadays accorded genus rank, as Aloiampelos Klopper & Gideon F.Sm. One of the formae described by Resende, Aloe ciliaris Haw. f. gigas Resende, a pentaploid, is a hybrid between the hexaploid Aloiampelos ciliaris (Haw.) Klopper & Gideon F.Sm. var. ciliaris and the tetraploid A. ciliaris var. redacta (S.Carter) Klopper & Gideon F.Sm. Aloe ciliaris f. gigas is here raised to the rank of nothovariety, as Aloiampelos ciliaris nothovar. gigas (Resende) Gideon F.Sm. & Figueiredo. We neotypify the replaced synonym, Aloe ciliaris f. gigas.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"1 1","pages":"36 - 38"},"PeriodicalIF":1.5,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88130505","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}
引用次数: 1
Espostoa (Vatricania) Guentheri have Unusual Cephalia or Pseudocephalia Espostoa (Vatricania) Guentheri有不寻常的cephalalia或假性cephalalia
IF 1.5 4区 生物学
Haseltonia Pub Date : 2020-02-26 DOI: 10.2985/026.026.0109
Root Gorelick
{"title":"Espostoa (Vatricania) Guentheri have Unusual Cephalia or Pseudocephalia","authors":"Root Gorelick","doi":"10.2985/026.026.0109","DOIUrl":"https://doi.org/10.2985/026.026.0109","url":null,"abstract":"Abstract: Espostoa (Vatricania) guentheri is a peculiar putative Espostoa, having some traits in common with Espostoa sensu stricto (cephalia in which many or most epidermal cells produces a spine, bristle, or trichome), some traits in common with Thrixanthocereus (cephalia with bristles instead of hairs; patches of epidermal cells in the cephalium that lack spines, bristles, hairs or trichomes), and some unique traits (gradual transition to cephalium formation; disjunct habitat). Gradual cephalium formation in E. guentheri is common, but not universal, which might be either because Vatricania is not closely related to Espostoa or that Vatricania is of hybrid origin. E. guentheri may have a pseudocephalium, rather than a true cephalium, with the reproductive part of shoots in subgenus Vatricania being morphologically intermediate between those of subgenus Espostoa and subgenus Thrixanthocereus.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"56 1","pages":"58 - 67"},"PeriodicalIF":1.5,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81554626","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}
引用次数: 0
Further Records of Cacti (Cactaceae) from Tarragona Province (Catalonia), Spain 标题西班牙塔拉戈纳省仙人掌科的进一步记录
IF 1.5 4区 生物学
Haseltonia Pub Date : 2020-02-26 DOI: 10.2985/026.026.0104
F. Verloove, A. Guiggi
{"title":"Further Records of Cacti (Cactaceae) from Tarragona Province (Catalonia), Spain","authors":"F. Verloove, A. Guiggi","doi":"10.2985/026.026.0104","DOIUrl":"https://doi.org/10.2985/026.026.0104","url":null,"abstract":"Abstract: Recent field work in the Spanish province of Tarragona yielded new records for several interesting cacti (Cactaceae). New provincial records are presented for the following taxa (species preceded by an * have not been reported before from the autonomous region of Catalonia): Cylindropuntia pallida, *C. prolifera, *C. tunicata, Mortolopuntia schickendantzii, Opuntia aurantiaca, *O. dejecta, O. elata, O. elatior, O. engelmannii, O. leucotricha, O. lindheimeri var. linguiformis and Salmonopuntia salmiana. Several of these are potentially or genuinely invasive species. Invasive populations previously referred to Opuntia engelmannii are here ascribed to a form of O. phaeacantha. All species are illustrated.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"69 1","pages":"23 - 35"},"PeriodicalIF":1.5,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78668781","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}
引用次数: 5
Areole Changes During Bark Formation for Columnar Cactus Species 柱状仙人掌树皮形成过程中微孔的变化
IF 1.5 4区 生物学
Haseltonia Pub Date : 2020-02-26 DOI: 10.2985/026.026.0102
L. Evans, Catherine A. McDonough
{"title":"Areole Changes During Bark Formation for Columnar Cactus Species","authors":"L. Evans, Catherine A. McDonough","doi":"10.2985/026.026.0102","DOIUrl":"https://doi.org/10.2985/026.026.0102","url":null,"abstract":"Abstract: Bark coverage occurs on stems of more than twenty species of columnar cacti. This report documents characteristics of areoles and spines from central Mexico with bark coverage percentages on five columnar cactus species (Cephalocereus columna-trajani, Neobuxbaumia macrocephala, N. mezcalaensis, N. tetetzo, and Pachycereus hollianus). Older cacti (more than 4 m tall) had fewer original spines than younger cacti (less than 2 m tall). For cacti taller than 4 m, loss of the original spines was positively correlated with bark coverage. For three species, loss of the original spines occurred with about 75% for bark coverages. Four of the five species studied produced hair-like spines at areoles. Three of the five species produced emergent spines. Most emergent spines were associated with hair-like spines. The presence of hair-like and emergent spines (spines that emerged on mature cactus surfaces) was not well correlated with percentages of bark coverage. Hair-like spines have been noted previously, but no function has been attributed to them. This is the first report with a description of emergent spines on tall, long-lived columnar cactus species.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"15 1","pages":"13 - 7"},"PeriodicalIF":1.5,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83047984","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}
引用次数: 0
Some Cacti Produce “Reactioncortex” Rather than Reaction Wood in Curved Sections of Weight-Stressed Shoots 一些仙人掌产生“反应皮质”，而不是反应木在弯曲部分的重量受压芽
IF 1.5 4区 生物学
Haseltonia Pub Date : 2020-02-26 DOI: 10.2985/026.026.0112
J. Mauseth
{"title":"Some Cacti Produce “Reactioncortex” Rather than Reaction Wood in Curved Sections of Weight-Stressed Shoots","authors":"J. Mauseth","doi":"10.2985/026.026.0112","DOIUrl":"https://doi.org/10.2985/026.026.0112","url":null,"abstract":"Abstract: Several cacti with curved shoots had a tissue referred to here as reaction cortex. The curved shoots were at the bases of lateral branches that were initially not vertical but which became vertical as they grew, or in areas where a shoot had tilted and then its tip became reoriented upward. In these curved regions, cortex was much thicker on the convex (outer) side of the curve as compared to the concave (inner) side. Reaction cortex was located within the thick convex area; it was recognizable as having a much firmer texture than surrounding cortex, and as being more translucent or pale/whitish. Cells of reaction cortex were distinguishable as being larger, more rounded and with smoother walls than other cortex cells. Curved regions contained only a small amount of wood, but that wood was distinctly thicker on the convex side rather than on the upper concave side as would be expected of tension wood typical of eudicots. Reaction cortex was found in various species of Cleistocactus, Echinopsis, and Haageocereus among others, all members of Core Cactoideae II.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"5 5 1","pages":"86 - 93"},"PeriodicalIF":1.5,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84351123","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}
引用次数: 1
New Succulents for the Tunisian and North African Alien Flora 突尼斯和北非外来植物群的新多肉植物
IF 1.5 4区 生物学
Haseltonia Pub Date : 2020-02-26 DOI: 10.2985/026.026.0110
R. Mokni, A. Elaissi, F. Verloove
{"title":"New Succulents for the Tunisian and North African Alien Flora","authors":"R. Mokni, A. Elaissi, F. Verloove","doi":"10.2985/026.026.0110","DOIUrl":"https://doi.org/10.2985/026.026.0110","url":null,"abstract":"Abstract: Botanical surveys undertaken in Central and Northern Tunisia (North Africa), mostly between 2012 and 2018, have revealed 12 non-native succulent (sensu lato) taxa that had not been reported before, either from the whole Mediterranean area, or from North Africa and Tunisia. The new taxa here reported belong to Aizoaceae, Basellaceae, Crassulaceae and Euphorbiaceae. Some can be considered naturalized or even potentially invasive in North Africa (e.g. Aptenia cordifolia (L.f.) Schwantes), whereas others are here reported for the first time from the Mediterranean area, e.g.: Carpobrotus dimidiatus (Harv.) L.Bolus and Volkeranthus aitonis (Jacquin) Gerbaulet. Some general information for each of these taxa is given, including data on their actual distribution and invasion status worldwide. Some field photographs are moreover provided.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"71 1","pages":"68 - 77"},"PeriodicalIF":1.5,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82123837","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}
引用次数: 12
The Use of Herbicides in South American Dry Forests to Control Shrub Encroachment: a New Threat to Cactus Species? A First Assessment 在南美干燥森林使用除草剂控制灌木入侵:对仙人掌物种的新威胁?第一次评估
IF 1.5 4区 生物学
Haseltonia Pub Date : 2020-02-26 DOI: 10.2985/026.026.0106
D. Gurvich
{"title":"The Use of Herbicides in South American Dry Forests to Control Shrub Encroachment: a New Threat to Cactus Species? A First Assessment","authors":"D. Gurvich","doi":"10.2985/026.026.0106","DOIUrl":"https://doi.org/10.2985/026.026.0106","url":null,"abstract":"Abstract: Dry forests are home to an important diversity of cactus species. In the Americas, these forests are under an increasing pressure due to a growing demand for land to produce pastures for cattle; in addition, the use of herbicides to control shrub encroachment is increasing. As a scientific collaborator of the Environmental Police of Córdoba province, Argentina, I had the opportunity to visit five cattle ranches where herbicides were illegally applied. The product used is Pastar, produced by Dow Agrochemical, and is composed of two hormonal herbicides, aminopyralid and fluroxypyr. Since all ranch owners are in legal dispute with the government, it was not possible to conduct a quantitative research. Therefore, I recorded all cactus species present and their sanitary conditions. A total of nine cactus species were recorded. In general, all species presented low abundance in comparison to the preserved forest, indicating that mechanical control of shrubs (using tractors) had already had a negative effect on species. Moreover, some common species in these forests, such as Gymnocalycium schickendantzii and Echinopsis leucantha, were not recorded. For most cactus species, the herbicide would have minimal or no effect, since individuals were found alive and in good sanitary conditions. In a few individuals of Cereus forbesii and C. aethiops, the end of the stems was damaged. Some individuals of Stetsonia coryne and Cereus forbesii were found dead, but it is not clear whether the herbicide was the cause. Since pressure for more pastures for cattle is increasing worldwide, more studies on the effect of land use changes and the use of chemical products on cactus species in dry forests of the Americas are needed.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"27 1","pages":"39 - 42"},"PeriodicalIF":1.5,"publicationDate":"2020-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82513536","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}
引用次数: 5
W. C. Wercklé Exsiccata Collection (Cactaceae) in Herbarium Mortolensis (HMGBH): Study and Revision Mortolensis (HMGBH)植物标本馆(Herbarium Mortolensis) W. C. werckl<e:1> exsicata Collection(仙人掌科):研究与修订
IF 1.5 4区 生物学
Haseltonia Pub Date : 2019-12-28 DOI: 10.2985/026.025.0102
A. Guiggi, M. Mariotti
{"title":"W. C. Wercklé Exsiccata Collection (Cactaceae) in Herbarium Mortolensis (HMGBH): Study and Revision","authors":"A. Guiggi, M. Mariotti","doi":"10.2985/026.025.0102","DOIUrl":"https://doi.org/10.2985/026.025.0102","url":null,"abstract":"Abstract: Five exsiccata relating to three taxa of Costa Rican epiphytic cacti collected by W.C. Wercklé deposited at HMGBH and at NY preserved from the original material sent to Berger at La Mortola are studied, illustrated and compared with the descriptions included in literature. The isotype of Rhipsalis wercklei A.Berger [= Rhipsalis micrantha (Kunth) DC.] discovered at HMGBH is designated here with the determination of the identity of Rhipsalis frondosa Wercklé nom. nud. [= Pseudorhipsalis acuminata Cufod.] and Rhipsalis costaricensis Britton nom. prov. [= Pseudorhipsalis himantoclada (Rol.-Goss.) Britton & Rose].","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"41 1","pages":"2 - 4"},"PeriodicalIF":1.5,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85345592","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}
引用次数: 0
Florivory Effects on Pollinator Preference and The Reproductive Output of A Threatened Living Rock Cactus, Ariocarpus retusus (Cactaceae) 濒危活岩仙人掌(Ariocarpus reusus)传粉者偏好及繁殖输出的花期效应
IF 1.5 4区 生物学
Haseltonia Pub Date : 2019-12-28 DOI: 10.2985/026.025.0101
D. Cárdenas-Ramos, M. Mandujano
{"title":"Florivory Effects on Pollinator Preference and The Reproductive Output of A Threatened Living Rock Cactus, Ariocarpus retusus (Cactaceae)","authors":"D. Cárdenas-Ramos, M. Mandujano","doi":"10.2985/026.025.0101","DOIUrl":"https://doi.org/10.2985/026.025.0101","url":null,"abstract":"Abstract: Florivory reduces pollinator visits and plant fitness due to the elimination of gametes and floral reproductive organs. Longevity and floral synchrony favors escape from florivores and increases resources for pollinators. We study the effects of natural and experimental florivory and if synchrony can diminish it. We determined the floral longevity and phenology of a living rock cactus population in Tamaulipas, Mexico. Open flowers were counted to estimate floral synchrony using the Marquis index. Floral longevity was established (n = 21 flowers). Florivory frequency was recorded indicating the phase of the damaged flower (floral bud, open or closed flower) and the structure (perianth, stigma and anthers) of which some percentage of tissue was removed (25, 50 and 100%) (284 flowers and 150 floral buds; 245 individuals). Flowers with natural damage to reproductive organs and gametes were quantified to determine the direct effect of florivory. Variations in the frequency of pollinators were evaluated with a paired experiment of artificial florivory: whole flower (control) and flower with removal of 50% of the perianth; taxonomic group of pollinators and florivores was recorded and the activity they carried out. Floral longevity varies from one to three days. Flowering is synchronous (S = 0.53 ± 0.09). In the population, 10.2% of the flowers and 2.6% of the floral buds presented florivory, the perianth of the flowers is the most predated. Artificial florivory does not reduce the frequency of pollinators; we argue that visitors do not discriminate between damaged and intact flowers. Florivory does not limit the masculine function because pollen search is the main activity. A total of 2% of the structures were partially (stigma) or totally consumed by Coleoptera (Cryptorhynchinae) and Lepidoptera, reducing the fruit-set due to the death of the flower.","PeriodicalId":50413,"journal":{"name":"Haseltonia","volume":"32 1","pages":"133 - 139"},"PeriodicalIF":1.5,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85326017","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}
引用次数: 2
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