Lobivia gen nov

Plant globular to short-cylindric, either simple or in clusters, always ribbed, usually very spiny; flowers so far as known diurnal, short-funnelform to campanulate, lateral from old areoles, in some from near the top, in others well down on the side of the plant, with a short, broad tube, red in typical species, but in others yellow or white; scales on the ovary mostly bearing long hairs in their axils; fruit small, globular.

Type species: Echinocactus pentlandii Hooker.

The genus as here treated is composed of 20 species, mostly hitherto referred to Echinopsis and Echinocactus. It is made to include various anomalous species which can not properly be referred to any described genus, and it is questionable whether they are all congeneric. Some, however, we know only from descriptions or photographs and further knowledge of them may lead to a different arrangement. In form their flowers are much alike. The two species transferred from Echinocactus (E. thionanthus and E. chionanthus) are described as having a dense ring of hairs on the inside of the flower-tube below the stamens; this with other differences in the shape of the flower may be of generic value. The species all inhabit the highlands of Peru, Bolivia, and Argentina.

The generic name is an anagram of Bolivia.

Continue reading here: Key To Species

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