Coryphantha vogtherriana
Monatsschr. Deutsch. Kakteen-Ges. 4: 32, figs. 1932
Family
Cactaceae
Genus
Species
Coryphantha vogtherriana
Author
Werderm. & Boed.
Chinese genus
顶花球属/菠萝球属
Chinese name
-
DescriptionEdit description
Central Spines
One, hooked, erect or descending, rarely hooked, thickened at the base on older plants only, 5-20 mm long, horn coloured to brown, soon greyish-white.
Seeds
Kidney-shaped, 1.2 x 0.8 mm, light brown, surface net-like.
Description
Coryphantha vogtherrianaSN|10210]]SN|10425]] is a solitary globose cactus specie occasionally forming low clumps. The stems usually grows deeply embedded in the soil. The presence of the red nectary glands and the mucilaginous cortex, distinguish it from the closely related, glandless Coryphantha maiz-tablasensisSN|735]]SN|10267]]. Moereover C. vogtherriana has a central spine and more edged, flattened tubercles (C. maiz-tablasensis has rounder tubercles and no central spines).
Tubercles
Loosely arranged, conical to ovoid, somewhat edged, and flattened to 17 mm long, axils densely woolly, with glands. Concerning the tubercle groove, this species shows a particular phenomenon which is known in Ortegocactus and, within the genus Coryphantha, only for Coryphantha ottonisSN|10267]]SN|735]] and Coryphantha georgiiSN|10425]]SN|10210]]
Flowers
Pale yellow, to 3-4 cm in diameter, 3.5 cm long, with much wool at the flower-base. Perianth segments 24-34 broad lanceolate, up to 3 cm long, 2.5-4 mm wide, margins entire. Outer perianth-segments with a strong, dark red midstripe. Inner perianth segments white, at times yellowish-white, sometimes with a faint pink-coloured midstripe and often with reddish tips. Stigma lobes 5-8, light yellow, anthers dark yellow, ovary small and oval.
Radial Spines
4-6 (or more), needle-like, in youth whitish, horn-coloured or brown, later greyish-white, often with darker brown tips, spreading horizontally, slightly curved to the side, somewhat curved to the body, upper ones somewhat closer to each other,(5-)7-13(-15) mm long.
Fruits
Small (8 mm long, 5 mm diameter), green juicy, with much white wool at the base and attached flower remnants.