Notocactus (K. Schumann) Frič (1928)

(Brasiliparodia, Malacocarpus, Wigginsia)
(greek notos = southern; latin cactus = cactus, thistle)
cactus of the south
Notocactus got its name because of its origin far distant in the south, inside of the older genus Echinocactus

globular, medium sized, partly short columnar; spines variabel, thin or broad, multi-colored or single-colored
flowers large, numerous, usually yellow with red stigma, also reddish, orange or with yellow stigma
fruits fleshy, at ripeness also thin-walled and slackly

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Distribution

lowlands of Argentinia, Uruguay, Brazil, Paraguay
steppes and mountains

Growth period

warm, sunny and somewhat airy with cooling down in the night
prevent full sun for slightly spined species
a location outside of the greenhouse is temporarly possible
constant moisture and humidity during the growth period
permanent wetness is to prevent

Winter period

bright but not too cold at about 46–53F (8–12°C) not complete dry
some species of this genus require a warmer winter rest not colder than 53F (12°C)
(e.g. Notocactus mueller-melchersii)

Substrat

the soil should be nutritious humus-rich and permeable to water
addition of coarse gravel, sand, loam and turf
   
Notocactus roseoluteus van Vliet (1973)
 
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Habitat

Uruguay
Rivera - nearby of Tranqueras on hilly terrain
in about 980 ft (300 m) altitude up to
Brazil
Rio Grande do Sul

Description

red-yellow Notocactus
globular, up to 7.1 in (18 cm) high and Ø, copper green, apex with dense white wool
ribs 15–18, three-sided, between the areoles with strong roundish humps
areoles in 0.4 in (1 cm) distant, 5 mm Ø, initially white wooly
ca. 8 radial spines, to 0.6 in (1.5 cm) long, usually shorter, light brown, base and tip brown
4 central spines, to 1.2 in (3 cm) long, crosswise, the strongest downward directed
flowers to 3.1 in (8 cm) Ø, bell shaped, at the apex, pink with dark midvein,
light yellow at the base, outside purple brown scaled, pistil light yellow, 9 stigma, pink
fruits light green to light pink
seeds helmet-shaped

Synonyms

Parodia mammulosa (Lemaire) N. P. Taylor (1987)
Notocactus herteri
var. roseoluteus (van Vliet) N. Gerloff & Neduchal (2004)
CITES Appendix II
 
Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available.

 

 

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