Rebutia colorea
Kakteen Sukk. 28(4): 78. 1977
Family
Cactaceae
Genus
Species
Rebutia colorea
Author
F.Ritter
Chinese genus
子孙球属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Central Spines
usually absent, or rarely 1 yellowish, 1-2 mm long.
Seeds
Brown-black , 1,0x1,8 mm broad, nearly smooth.
Description
Rebutia coloreaSN|4416]]SN|4489]] is one of the many geographical forms of the extremely variable Rebutia pygmaeaSN|4489]]SN|4416]]. It has tiny dark olive-green to brownish-violet stems. Flowers are bright, electric carmine to purple.
Roots
Tap root more or less branched whitish.
Tubercles
About 2-4 mm wide and 1,5- mm high.
Flowers
Bright, electric carmine to purple. From the basal parts of the stem, widely funnel-shaped about 25-35 mm long and 25-35 mm wide usually salmon pink, however the flowers of this species and its varieties (forms?) vary a lot and range from from white to pink, red, salmon and orange. Buds spherical with few whitish to dark scales with woolly axils and with white bristles. Tube funnel-shaped, 8-14 mm long, pale pink inside, outside with few scales and white hairs. Tepals somewhat pointed, intense purple with crimson to ruby tips. Filaments purple about 10 mm long. Anthers yellow. Pistil light green, about 15 mm long, with 4-7 green stigma lobes.
Ribs
About 10 more or less spiralling, slightly tuberculate.
Stem
10-30(-40) mm tall, 12-20 mm wide, spherical to slightly oblong, becoming short-cylindrical in cultivation. The colour of the epidermis vary from grey-green or olive-green to dark purple-green with violet tints.
Fruits
Spherical, reddish, with thin skin, drying at maturity, about 10 mm large.
Habit
It is a small geophyte cactus, with a heavy tap root that may exceed the size of the plant above soil level. Solitary or clustering and barely rising above ground level.
Blooming Season
Flowers all tend to come in one late Spring rush, rather than spread over the Summer.
Radial Spines
8-11, thin, bristly, pectinate, short, brown to glassy white with a darker base, 2-3 mm long.
Areoles
Oval, 1-1,5 mm long, about 0,5 mm wide, slightly brownish or whitish tomentose, 2 mm long, with abundant white or light brown felt, a little far apart.