Download Coryphantha: Cacti of Mexico and Southern USA by Reto F. Dicht, Adrian D. Lüthy PDF

By Reto F. Dicht, Adrian D. Lüthy

This exact reference paintings offers the 1st entire taxonomy of Coryphantha, with a whole 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 via their regular grooved tubercles and massive plant life.

The ebook is the results of decades of viewing the literature and fieldwork through the writer group and their ongoing dedication to map out the nomenclature of this genus. in this technique, the authors even chanced on a few new vegetation.

More than three hundred top quality color photographs displaying a few 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 sort and with a bankruptcy on cultivation stipulations, the paintings won't basically be a useful reference guide for taxonomists and horticulturalists but additionally for hobbyists and plant creditors.

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Additional resources for Coryphantha: Cacti of Mexico and Southern USA

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They proposed Mammillaria sulcata Engelmann. This fact had been overlooked by many authors, but was referred to by R. MOTTRAM in 1992. Generally, the lectotypification by BRITTON and MILLSPAUGH (1920) had been regarded as valid. They had proposed C. sulcolanata Lemaire, which was referred to in Lemaire’s list as the type species. However, C. sulcolanata was not mentioned in Engelmann’s list and since Lemaire, when proposing the genus Coryphantha, had referred to Engelmann, the choice of C. sulcolanata as the type species had to be dropped.

Scheeri (Lemaire) Taylor)]; Mammillaria kieferiana 7 The Genus Coryphantha – Description of the Species Hort. ex Bödeker, Zeitschr. -Kunde 3: 270, 1928; Coryphantha kieferiana Berger, Kakteen 276, 1929; Echinocactus salinensis Poselger 1853 sensu Britton & Rose, Cactaceae 4:28, 1923; Mammillaria difficilis Quehl 1908 sensu Britton & Rose, Cactaceae 4: 28, 1923. Body solitary, semi-globose to short cylindrical, 10–30 cm high and 13–18 cm in diameter, dull grey-bluish-green, apex rounded, woolly, central thin taproot.

G. Coryphantha clavata ), treatment as an independent subgenus is not justifiable, however, the presence of a unique areole type permits the separation into an independent section. Illustrations: Distribution see Plate 9, map 1; plant portrait see Plate 14, photo 2. B Section Robustispina Dicht & A. Lüthy Cact. Syst. Init. 11: 9, 2001. Type: Coryphantha robustispina (Schott ex Engelmann) Britton & Rose. Definition: Areoles Protocoryphantha type: grooves becoming slowly longer on each newly formed tubercle during the ontogenesis of the individual plant, this process being interrupted for a longer period (years) when the grooves reach about three-quarters of the way to the tubercle axils and incomplete 46 grooves persist on old tubercles, flowering only after attainment of maximum length areolar grooves reaching the axils.

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