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Browsing Plant Science by Author "Crouch, Neil R."
Now showing items 1-20 of 21
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Walters, Michele; Smith, G.F. (Gideon Francois), 1959-; Crouch, Neil R. (International Association for Plant Taxonomy, 2010-04)Given the ongoing and often destructive impact of humans on the natural environment, the need for sound and robust taxonomies has become critically important (see for example Godfray & Knapp, 2004). The difficulty with ...
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Crouch, Neil R.; Smith, G.F. (Gideon Francois), 1959- (National Botanical Institute, 2011-01)The genus Agave L. has long been recognized as invasive in southern Africa, and until recently was thought to be the only one of eight genera in the Agavaceae (Verhoek 1998) to have become regionally naturalized (Smith ...
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Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela; Klopper, Ronell Renett; Crouch, Neil R. (British Cactus and Succulent Society, 2012)Although morphologically variable and widely distributed in southern Africa, Aloe maculata All. is well defined by a suite of characters that includes maculate (spotted) leaves, flattopped inflorescences and uniformly ...
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Smith, G.F. (Gideon Francois), 1959-; Crouch, Neil R. (British Cactus and Succulent Society, 2010)A new species of leptoaloe, Aloe nicholsii Gideon F.Sm. & N.R.Crouch is described from the midlands of KwaZulu-Natal, South Africa. The species shows affinities with Aloe kraussii Baker, but can be readily distinguished ...
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Crouch, Neil R.; Smith, G.F. (Gideon Francois), 1959- (British Cactus and Succulent Society, 2011)A new species of Aloe L., Aloe sharoniae N.R.Crouch & Gideon F.Sm., is recognised from northern KwaZulu-Natal, South Africa and Swaziland. This taxon was previously known as A. cooperi Baker subsp. pulchra Glen ...
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Smith, Gideon F.; Figueiredo, Estrela; Crouch, Neil R.; Oosthuizen, Delia; Klopper, Ronell Renett (Cactus and Succulent Society of America, 2016)The natural hybrid between Aloe arborescens Mill. and A. chortolirioides A.Berger var. chortolirioides (Asphodelaceae) is here formally described as a nothospecies, A. ×inopinata Gideon F.Sm., N.R.Crouch & Oosth. The ...
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Smith, G.F. (Gideon Francois), 1959-; Klopper, Ronell Renett; Figueiredo, Estrela; Crouch, Neil R. (British Cactus and Succulent Society, 2012)Taxonomic concepts in the morphologically variable Aloe arborescens Mill. are discussed. Previous approaches to the taxonomy of this species varied from describing aberrant material as new entities, using formal ...
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Crouch, Neil R.; Smith, G.F. (Gideon Francois), 1959-; Styles, D. (National Botanical Institute, 2011-01)We describe a new subspecies of Gasteria croucheri (Hook.f.) Baker from northern Pondoland, Eastern Cape, an obligate cremnophyte belonging to Gasteria Duval sect. Longifl orae Haw. ser. Longifoliae Haw. The members ...
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Victor, Janine Elizabeth; Smith, G.F. (Gideon Francois), 1959-; Turland, Nicholas J.; Le Roux, Mariaan; Paton, Alan; Figueiredo, Estrela; Crouch, Neil R.; Van Wyk, Abraham Erasmus (Braam); Filer, Denis; Van Wyk, Erich (Springer, 2014-01)At the 10th Conference of the Parties of the Convention on Biodiversity (CBD), which was held in Nagoya, Japan, in October 2010, an updated Global Strategy for Plant Conservation (GSPC) was adopted as part of the plan of ...
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Crouch, Neil R.; Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela (Missouri Botanical Garden Press, 2013-12)The exceptional botanical wealth of southern Africa has been known internationally since the early 17th century. However, it is only during the past 25 years that a succession of regional floristic checklists has been ...
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Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela; Klopper, Ronell Renett; Crouch, Neil R.; Janion, Charlene; Chown, Steven Loudon (British Cactus and Succulent Society, 2012)The widely distributed agave snout weevil, Scyphophorus acupunctatus Gyllenhal, is for the first time recorded from Agave salmiana Otto ex Salm-Dyck subsp. salmiana in South Africa. In its native habitat in Mexico, ...
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Smith, G.F. (Gideon Francois), 1959-; Klopper, Ronell Renett; Figueiredo, Estrela; Crouch, Neil R.; Barkworth, Mary E. (British Cactus and Succulent Society, 2013)We show that of four previously unrecorded, but recently unearthed names in Aloe L. (Asphodelaceae: Alooideae), none has an impact on the species-rank nomenclature of the genus as currently accepted. Although nomenclatural ...
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Klopper, Ronell Renett; Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela; Crouch, Neil R. (British Cactus and Succulent Society, 2010)The Ditepalae, an informal taxonomic grouping recognized in the genus Agave L., currently consists of 12 species, most of which geographically straddle the border between the southern USA and Mexico. All of these species ...
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Crouch, Neil R.; Beaumont, A.; Smith, G.F. (Gideon Francois), 1959- (National Botanical Institute, 2010)Field observations have revealed that flowering of both male and female plants of subsp. trifoliolata extends, intermittently, from August to December, with fruiting occurring from September onwards.
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Klopper, Ronell Renett; Crouch, Neil R. (National Botanical Institute, 2012)Ceterachoid aspleniums in southern Africa have long been treated as a single widespread and variable taxon, Asplenium cordatum (Thunb.) Sw. (= Ceterach cordatum Thunb.). In addition to A. cordatum, a further two ceterachoid ...
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Klopper, Ronell Renett; Smith, G.F. (Gideon Francois), 1959-; Grace, Olwen Megan; Crouch, Neil R. (British Cactus and Succulent Society, 2014)Aloe barbertoniae Pole-Evans, which has previously been included in the synonymy of A. greatheadii Schönland var. davyana (Schönland) Glen & D.S.Hardy, is here reinstated. This species is adapted to the subtropics of ...
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Smith, Gideon F.; Klopper, Ronell Renett; Crouch, Neil R.; Figueiredo, Estrela (British Cactus and Succulent Society, 2016)Aloe candelabrum A.Berger (Asphodelaceae: Alooideae), a stately, single-stemmed species from the KwaZulu-Natal province in eastern South Africa, which had been included in the synonymy of A. ferox Mill. for some years, ...
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Grace, Olwen Megan; Klopper, Ronell Renett; Smith, G.F. (Gideon Francois), 1959-; Crouch, Neil R.; Figueiredo, Estrela; Rønsted, Nina; Van Wyk, Abraham Erasmus (Braam) (Magnolia Press (open access), 2013)The predominantly southern African Xanthorrhoeaceae subfam. Asphodeloideae (Asphodelaceae subfam. Alooideae) has long been regarded as comprising seven so-called alooid genera (Aloe, Astroloba, Chortolirion, Gasteria, ...
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Crouch, Neil R.; Douwes, E.; Wolfson, M.M.; Smith, G.F. (Gideon Francois), 1959-; Edwards, T.J. (Academy of Science of South Africa, 2008-09)Globally, many nations are legislating access for bioprospecting purposes to their biological and genetic resources. South Africa, as a megadiverse country, has recently regulated bioprospecting, access and benefit-sharing ...
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Smith, G.F. (Gideon Francois), 1959-; Figueiredo, Estrela; Boatwright, James S.; Crouch, Neil R. (British Cactus and Succulent Society, 2011)The history of Opuntia Mill. in South Africa is well documented with invasive species of this genus having been controlled for many years. Despite these costly efforts some 12 species (13 taxa) of Opuntia are evidently ...
Now showing items 1-20 of 21