Coryphantha: Cacti of Mexico and Southern USA by Reto Dicht, Adrian Lüthy

By Reto Dicht, Adrian Lüthy

This distinctive reference paintings provides the 1st finished taxonomy of Coryphantha, with an entire key to the genus. It features a new taxonomic category of all forty three species and eleven subspecies, with morphological and ecological descriptions. those cacti, which develop in Mexico and southern united states, are characterised via their standard grooved tubercles and massive plants. The publication is the results of decades of viewing the literature and fieldwork via the writer workforce and their ongoing dedication to map out the nomenclature of this genus. in this technique, the authors even chanced on a few new crops. greater than three hundred top of the range color photographs exhibiting some of the cacti and their habitats in addition to distribution playing cards and illustrations explaining the morphological information supplement the textual content. Written in an easy-to-follow type and with a bankruptcy on cultivation stipulations, the paintings won't merely be a useful reference guide for taxonomists and horticulturalists but additionally for hobbyists and plant collectors.

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Additional resources for Coryphantha: Cacti of Mexico and Southern USA

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In 1898 Karl Moritz SCHUMANN’s (1851– 1904) Gesamtbeschreibung der Kakteen appeared. This is a detailed monograph of the Cactaceae, in which 22 species of Coryphantha appeared, considered, however, as a subgenus of Mammillaria and divided between the series Aulacothelae Lemaire and Glanduliferae Salm-Dyck. It was obvious that by this time Lemaire’s work was not highly esteemed. Schumann’s work contains detailed descriptions, Latin diagnoses and synonyms, but confuses readers by using many catalogue names as first publications, and cultivators of the plants, who had given them any name, as the original species names.

Seeds reniform. A. Section Lepidocoryphantha (Backeberg) Moran Gentes Herb. ) Type: Coryphantha macromeris (Engelmann) Lemaire. Synonyms: Coryphantha series Macromeres Britton & Rose, Cactaceae 4: 24, 1923. 44 Definition: Areoles Macromeris type (ZIMMERMAN 1985, p. 61): Plants flowering only after attainment of maximum length areolar grooves, which extend only about halfway to the axils. Margins of outer perianth segments fimbriate. Ovary and fruits with few single scales. Cortex mucilaginous. 1 a.

Up to this time, all Coryphantha sp. were allocated to Mammillaria, the generic name being Aulacothele (Lemaire) Monville. Although valid, this was not generally recognised and was not referred to after 1846. Engelmann was faced with the nomenclatural chaos described above. In 1856 he suggested the name Coryphantha (Coryphantha [Greek] ∫ flowering from the top) as a subgenus of Mammillaria for a group of about 16 species. Incidentally, three of them (papyracantha, pottsii and conoidea) had to be excluded again later.

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