= Notocactus horstii f. purpureus (F.Ritter) K.Herm
Internoto 14(2): 64 (1993)
Accepted Scientific Name: Parodia ottonis subs. horstii (F.Ritter) Hofacker
Cactaceae Consensus Init. 6: 12. 1998
Notocactus purpureus (Notocactus horstii f. purpureus) Photo by: Alexander Arzberger
Origin and Habitat: Rio Grande do Sul, southern part of the the range of Notocactus horstiiSN|20345]]SN|20345]] (Santa Maria, Cerro Botucaraí, Candelaria, Sao Pedro do Sul, Sao Martinho) Brazil.
Type locality: Sao Martinho and Santa Maria, Serra Geral, Rio Grande do Sul, Brazil.
Altitude range: Around 150-350 metres above sea level.
Synonyms:
See all synonyms of Parodia ottonis
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Accepted name in llifle Database:Parodia ottonis (Lehm.) N.P.TaylorBradleya 5: 93. 1987Synonymy: 67
Accepted name in llifle Database:Parodia ottonis subs. horstii (F.Ritter) HofackerCactaceae Consensus Init. 6: 12. 1998Synonymy: 14
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Description: As the name implies Notocactus horstiiSN|20345]]SN|20345]] f. purpureus is a distinct purple blooming form. However the plant occurs in several places, and is quite variable both in habitat and in our collections too. The spines range from nearly white to red-brown, and flowers from light-pink to dark purple.
Stem: Grass green, up to 14 cm in diameter, solitary (non-offsetting).
Central spines: 4-6, reddish brown, somewhat bent, up to 20 mm long.
Flower: Up to 4 cm wide. Inner perianth segments purple, 18 mm long and 4-5 mm wide. Nectar chamber narrow. Stamens inserted along the whole length of the tube. Style pink, stigma-lobes 10, spreading, almost white, 7-8 mm long.
More...Bibliography: Major references and further lectures
1) Herm, Konrad "N. horstii (Ritter) forma purpureus (Ritter) Herm forma nova" in: Internoto 14 ( 2 ): 59-64, 1993
Notocactus purpureus (Notocactus horstii f. purpureus) Photo by: Alexander ArzbergerSend a photo of this plant.The gallery now contains thousands of pictures, however it is possible to do even more. We are, of course, seeking photos of species not yet shown in the gallery but not only that, we are also looking for better pictures than those already present.
Read More... Cultivation and Propagation: They like a warm bright location, and do great in partial shade. Avoid full sun. During winter's rest period they should be dry and cool. It is best to avoid any frost, but during the winter the temperature can be as low as 2° C without any harm, as long as the compost is very dry. They like only a short winter's rest. If the soil is allowed to be dry for too long, root loss could follow but equally the same result would occur if the plants are both wet and cold. Cold spots can mar its epidermis in cold damp conditions. They need good drainage and prefer a neutral to slightly acidic compost with plenty of extra grit and iron feed help to delay the onset of basal corking.. Water and feed during the summer. Best if watered with rain water and given an occasional tonic of sequestrated iron. A well grown plant is a fresh glossy grass- green, contrasting with reddish spines.
Propagation: Usually by seeds as it seldom produces offsets.
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