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Brazilian Cacti by Andreas Hofacker



Andreas Hofacker well known German expert on Brazilian cacti, kindly contributes with a dozen of beautiful photos. His articles, including first descriptions and travellouges, are often published in the german journal "Kakteen und andere Sukkulenten".

 

Micranthocereus polyanthus AH 292


Micranthocereus polyanthus is the longest known Micranthocereus s. str.. It occurs around the town of Caitité in the brazilian state of Bahia. As most of all Micranthocereus species it is easy to grow from seeds, and the plants needs a warm place in winter (15-20 C). The small but numerous flowers developes already on small plants, 30-40 cm high.

Arrojadoa rhodantha ssp. aureispina AH 293


This species is closely related to Arrojadoa rhodantha from which it differs through its golden spines. It grows very fast and flowers several times a year. It is one of the easiest Arrojadoa' s to cultivate. Its pinkish flowers are an eye-catcher for every collection. Propagation through seeds or cuttings which root quite fast.

Melocactus curvispinus ssp. caesius AH 248


Melocactus curvispinus ssp. caesius is quite common in the northern parts of South America. It is very variable in spination and therefore known under different names. The picture shows a plant from the venezuelan island Isla Margarita.

Discocactus horstii AH 284


Discocactus horstii is surely one of the most interesting Discocacti. It reaches only a diameter of 8 cm and flowers from 3-4 cm in diameter. It was named in honor of the brazilian collector Leopoldo Horst, who discovered the plant in the 1960ies. As all Discocacti it is rather difficult to grow and therefore grafting is required.

Heliocereus spec. HU988


This plant form the brazilian state of Santa Catarina is very spectacular. Some collectors say it is a natural hybrid, but nobody can say what the parents should be, because there are no other red flowering plants around this habitat. But in any way the flower is longer than other hybrids and has a nice scent. The bi-colored flowers appear in early summer.

Parodia turbinata AH 168
Parodia turbinata was described in 1905 but disappeared totally from our collections until it was rediscovered in the 1970'ies. It occurs in the southern parts of Uruguay and is characterized trough its flat body and the yellow flowers.

Parodia scopa ssp. succinea AH 115 (syn. Notocactus succineus)


This plant is one of the discoveries of Friedrich Ritter and Leopoldo Horst in the 1960ties. It was described by Ritter in 1970 as Notocactus succineus and is closely related to Parodia scopa from which it differs trough less ribs and the yellow spines. Parodia scopa ssp. succinea grows with some other species of the genus Parodia (Notocactus), Frailea, Gymnocalycium, Cereus and Opuntia in the southernmost brazilian state Rio Grande do Sul.

Parodia scopa fa. AH 74
(Syn. Notocactus scopa)


Normally Parodia scopa has red stigma lobes. This finding from the brazilian state of Rio Grande do Sul has yellow stigma lobes. It grows together with Parodia nothominuscula, Frailea spec., Cereus spec. and Gymnocalycium denudatum. Like most other Parodia' s from Brazil it is very easy to cultivate and need no special treatments.

Melocactus paucispinus AH 303


This species grows together with Micranthocereus streckeri, Micranthocereus purpureus, Melocactus concinnus near Seabra in the northeastern brazilian state of Bahia. It is quite rare in habitat and therefore it came into Appendix 1 of CITES. But in the last years new habitats have been discovered, so that one should think about to reduce it to Appendix 2. Like most other Melocacti, Melocactus paucispinus needs warm conditions to grow.

 

Micranthocereus auriazureus AH 285
Micranthocereus auriazureus grows together with the famous Discocactus horstii With its purple flowers it is one of the most attractive Micranthocerei. Flowers can be expected from an altitude from about 40-50 cm. The name "auriazureus" refers to the golden spines and the azure epidermis. The cultivation is quite easy if you mention, that as most of the plants from northeastern Brazil it requires higher temperature.

 

 

Pilosocereus
supthutianus HU 1398

This species is one of the lower growing Pilosocerei. Flowers can be expected from an altitude of 40 cm and the plants do not become higher than 1 m. Therefore a plant which can be cultivated in greenhouses without problems. Pilosocereus supthutianus occurs in the brazilian state Minas Gerais.

 

 

ultivated in greenhouses without problems. Pilosocereus supthutianus occurs in the brazilian state Minas Gerais.