= Rebutia fusca F.Ritter
Kakteen Sukk. 28(4): 78 (1977)
Accepted Scientific Name: Rebutia spegazziniana Backeb.
Kakteen-Freunde ii. No. 1, (1933); Backeb. Blatter Kakteenforsch. 1934, Pr. 2,[p. 8].
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Aylostera fusca (Rebutia fusca) Photo by: Valentino Vallicelli
Origin and Habitat: Questa de Sama and adjacent areas, Tarija, Bolivia
Altitude range: 3100-3900
Habitat and ecology: Rebutia fuscaSN|5046]]SN|5046]] grows on rock outcrops in grassy slopes.
Synonyms:
See all synonyms of Rebutia spegazziniana
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Accepted name in llifle Database:Rebutia spegazziniana Backeb.Kakteen-Freunde ii. No. 1, (1933); Backeb. Blatter Kakteenforsch. 1934, Pr. 2,[p. 8].Synonymy: 35
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Description: Rebutia fuscaSN|5039]]SN|5046]] is a very distinctive species with an overall brown aspect, and with very short spines lying close to the stem that barely reach 2-3 mm long and give the impression that the plant could be grasped with impunity. It is the “Bolivian form” of Rebutia spegazzinianaSN|5046]]SN|5033]], but it has a very different habit from that species, growing tallish stems and solitary or clustering randomly. This slow growing cactus is highly priced for its vibrant orange red blooms.
Stem: Solitary, slowly and sparsely clustering in cultivation, 2-4 cm wide, and up to 8 cm tall or more.
Ribs: 13-17 scarcely discernible.
Areoles: With brown wool.
Radial spines: 8-14, pectinate, 1.5-3 mm long, lying flat to to the body, red, sometimes yellow, with red at the base.
Central spines: 1 or 2, thicker, red to nearly black, 2-3 mm long.
Flowers: Orange-red to scarlet, 2-3 cm long and wide. The stigma lobes are very pale and the anthers are cream coloured.
Spines: Rebutia fuscaSN|5033]]SN|5046]] is one of the shortest spined species in the genus.
Note: It is sometimes seen misnamed Rebutia vulpinaSN|5046]]SN|5039]], an altogether more bristly and more globular species.
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Subspecies, varieties, forms and cultivars of plants belonging to the Rebutia spegazziniana group
- Rebutia froehlichiana Rausch
Rebutia fusca F.Ritter: has tiny bristle spines and vibrant orange-red flower. Distribution: Oruro, Tarija, Bolivia.
- Rebutia mamillosa Rausch: has dark greenish brown bodies becoming bronzed purple in full sun and forms small clumps of small heads around 20 mm across. Flowers dark red, ca. 2,5 cm in diameter with showy white stamens. Distribution: west of Camargo and adjacent areas, Chuquisaca, Bolivia.
Rebutia mamillosa var. australis F.Ritter: has bodies 20-30 mm wide, 10-15 ribs, 12-20 radial spines, 3-6 mm long and 0-4 centrals equal in length. Flowers 26-46 mm long with white filaments. Distribution: Habitat, San Antonio, Prov. Mendez, Bolivia.
- Rebutia mamillosa var. orientalis F.Ritter: has areoles abundantly filled with white wool, 0-4 radial spines, 5-7 mm long, darker at base. Distribution: Tarija towards the south, Bolivia.
Rebutia patericalyx F.Ritter: has vibrant orange-red flower and tiny bristle spines covered by tiny hairs. Distribution: La Queva, Chuquisaca, Bolivia.
- Rebutia rubiginosa F.Ritter
Rebutia spegazziniana Backeb.: widespread and variable species that will clump with age and produces large and beautiful bright red flowers. Distribution: Bolivia and Argentina.
Rebutia spegazziniana var. atroviridis (Backeb.) Šída: has darker bluish grey-green skin and lighter, weaker spines. Blooms dark red. Distribution: Bolivia and Argentina.
Rebutia spegazziniana var. boliviensis n.n., Rausch
- Rebutia sumayana Rausch
- Rebutia tarijensis Rausch
Rebutia tarvitaensis F.Ritter: has grey-green to olive-green epidermis with violet tints and orange-red blooms. Distribution: Tarvita, Chuquisaca, Bolivia.
- Rebutia tuberosa F.Ritter
Rebutia vulpina F.Ritter: Flowers are bright red, the petals tipped scarlet, stigma and stamens white. Distribution: Bolivia, Tarija, Mendez, west of Tarija.
- Rebutia zecheri Rausch
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Bibliography: Major references and further lectures
1) John Pilbeam “Rebutia” Cirio Pub. Services, 01 May 1997
2) “British Cactus & Succulent Journal” Cactus & Succulent Society, 2001
Aylostera fusca (Rebutia fusca) Photo by: Valentino Vallicelli
Aylostera fusca (Rebutia fusca) Photo by: Valentino Vallicelli
Aylostera fusca (Rebutia fusca) Photo by: Valentino VallicelliSend 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: It is easy to grow and recommended for beginners. Prefer gritty, porous mix with a pH slightly on the acidic side. Full sun to light shade, Water regularly in summer but do not overwater (the root system is rot prone) and allow the pot to dry out between waterings. Keep dry in winter Hardy to -4°C it will take low temperatures when dry and do require a winter rest period. This species will occupy a small flower pot comfortably and remain a manageable sized house plant.
Pest and disease: This plants are subject to mealy-bug attack and to fungus and rot problems brought about by overwatering and high humidity.
Propagation: Seed or offsets.