Thelomastus bicolor
Verzeichnis Amer. Sukk. Rev. Syst. Kakteen 10 (1935), nom. illeg.
Family
Cactaceae
Genus
Species
Thelomastus bicolor
Author
(Galeotti ex Pfeiff.) Frič in Kreuz.
Chinese genus
-
Chinese name
-
Primary
Accepted
DescriptionEdit description
Central Spines
3-4, 15-75 mm long, ochre to reddish, straight, acicular or slightly bent inwards.
Description
Globular usually solitary cacti up to 10 cm in diameter.
Note
This Taxon has lots of synonyms ( like many other cacti) whit several controversial varieties and subspecies and comprises a multitude of different forms, but where each form is linked to others by populations of plants with intermediate characteristics. Five subspecies are recognized, the nominate form, subsp. bolaensis (Runge) Doweld, subsp.,flavidispinus (Backeb.) N.P.Taylor, subsp. heterochromus (F.A.C.Weber) Mosco & Zanov. and subsp. schwarzii (Backeb.) N.P.Taylor.
Tubercles
Rounded.
Flowers
55-110 mm wide, magenta with a red throat from early spring to autumn.
Ribs
8, distinct.
Stem
Ovoidal, 8-20 cm tall, 5-12 cm wide.
Radial Spines
8-18, 10-30 mm long, ochre to reddish, straight, acicular.
Areoles
With glands.