By Dr. med. Reto F. Dicht, Adrian D. Lüthy (auth.)
This distinct reference paintings provides the 1st entire taxonomy of Coryphantha, with an entire key to the genus. It includes 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 by means of their general grooved tubercles and big plant life.
The booklet is the results of decades of viewing the literature and fieldwork by means of the writer staff and their ongoing dedication to map out the nomenclature of this genus. in this approach, the authors even came across a few new vegetation.
More than three hundred top of the range color photographs exhibiting a number 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 kind and with a bankruptcy on cultivation stipulations, the paintings won't in simple terms be a useful reference guide for taxonomists and horticulturalists but additionally for hobbyists and plant collectors.
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Extra info for Coryphantha: Cacti of Mexico and Southern USA
The thesis, which Friedrich postulated as a consequence of his analysis of the Protomammillaria areole type (Coryphantha clavata), can be applied to all areole types within the Mammillaria phylad (mainly the two genera Coryphantha and Mammillaria), but it needs to be extended, since it originates from observations of Coryphantha clavata only. The separation of peripheral spination from protected flowers positioned inside makes sense ecologically and the transfer of the flowers from the areole to the axils can be understood phylogenetically.
His work lists over 50 species. Among them are many new descriptions of Friedrich Bödeker, who, in the period 1920–1930, described many new cactus species, including some Coryphantha sp. In his Mammillarien-Vergleichs-Schlüssel, BÖDEKER (1933) mentioned 64 Coryphantha species, and he also treated Neobesseya and Escobaria as separate genera. As a starting point, he studied Alwin BERGER’s Die Entwicklungslinien der Kakteen of 1926 where Berger set out to clarify the supposed phylogenetic interrelationship between all the cactus genera acknowledged by Britton and Rose.
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.
Coryphantha: Cacti of Mexico and Southern USA by Dr. med. Reto F. Dicht, Adrian D. Lüthy (auth.)