|
|
|
Thelocactus bicolor ssp. schwarzii (Backeberg) N.P. Taylor, CCI 5: 14 (1998).
Basionym: Thelocactus schwarzii Backeb., Cact. Succ. J. Gr. Brit. 12: 81 (1950).
Lectotype: Cact. Succ. J. Gr. Brit. 12: 84 (1950).
Synonyms: Ferocactus bicolor var. schwarzii N.P. Taylor, Cact. Succ. J. Gr. Brit. 41: 30 (1979). Thelocactus bicolor var. schwarzii E.F. Anderson, Bradleya 5: 61 (1987).
Description
Stem single, ovoidal, 9 cm tall, 5.5 cm wide. Ribs 13, distinct. Tubercles rounded. Areoles with glands. Central spines 0-(1), 20-30 mm long, ochre to reddish, straight, acicular. Radial spines 13-14, 15-30 mm long, ochre to reddish, straight, acicular. Flowers 65-85 mm wide, magenta with a red throat and a white zone above it.
Distribution
Mexico, Tamaulipas, occurring in Tamaulipan Thorn Shrub on rocky outcrops.
Comments
This is a small-sized species which occurs outside the Chihuahuan Desert in Tamaulipan thorn forest. It is characterised by the lack of central spines, though, rarely, plants with a single central spine can be found amid those normally lacking this feature.
Thelocactus bicolor ssp. schwarzii
Calles, Tamaulipas
Photo: J. Jauernig
enlarge
|
|
Thelocactus bicolor ssp. schwarzii
Calles, Tamaulipas
Photo: A. Mosco
enlarge
|
Thelocactus bicolor ssp. schwarzii
Calles Tamaulipas
Photo: A. Mosco
enlarge
|
|
Thelocactus bicolor ssp. schwarzii
Photo: A. Mosco
enlarge
|
previous | home | © Alessandro Mosco 2004 | Last updated: 07-08-2005
|
|
