Graptopetalum
General Information   |   Species   |   Hybrids

SUPERBUM Acevedo Rosas, 2003

Synonym : G. pentandrum ssp. superbum  Kimnach (1987)

 

Distribution : Mexico (Jalisco); 1200m

 

 

Description :

 

Plant schrubby, branching basally, to 20 cm tall or more, entirely glabrous.

 

Stems branching mostly from base, suberect to semidecumbent, 10 – 12 cm thick near base, 5 – 10 mm thick near apex, prominently marked with elliptical, tan leaf-scars.

 

Leaves 12 – 20 on apical 1 – 2 cm of stem, the more apical ones in a dense, nearly flat rosette, the lower ones separated 5 – 8 mm at base, soon deciduous, oblong-obovate, with a deltoid mucro, heavily glaucous with purplish bloom, amber-green beneath wax, 4 – 6 cm long, 2 – 2.5 cm wide at widest part 1.5 – 2 cm from apex, 5 – 7 mm thick at thickest part ca. 5 mm from apex, the upper surface nearly flat, the lower surface more or less strongly convex.

 

Inflorescences : Flowering stems up to 3 to a stem, erect or ascending-horizontal, 30 – 40 cm long and ca. 20 – 30 cm wide, peduncle 7 – 12 cm long, bracts lacking on basal 2 – 3 cm, ca 10 above, similar to leaves but smaller, branches 12 – 15, ca. 2 – 4 cm apart, 5 – 9-flowered, pedicels 10 – 14 mm long.

 

Flowers : Sepals appressed to petals, 3 – 4 mm long, glaucous, corolla ca 9 mm long when unopened, 15 – 16 mm wide when expanded, petals 5 (or 6), triangular, the upper surface greenish yellow, the apical millimeter reddish brown, the next 2 mm with 2 – 3 crossbands and scattered dots of same colour.

 

Cytology : n = 64

 





Photos Emmanuelle Aubé



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