Overview
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Discocactus is a of tropical cactus. The name comes from the ancient greek "diskos" (=disc) because of its shape. Discocactus plants are endemic to southern Brazil, eastern Bolivia, and northern Paraguay. These species are in the risk of extinction in the wild.
The plants have a slightly flattened spherical shape. Areoles bear sharp spines. At the apex of the adult plants, appeared a woolish cephalium white ot z little bit yellow or grey. On the sides of the cephalium appear white nocturnous flowers. Fruits are pink or red. They contains black seeds.
Taxonomy
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The Genus Discocactus is further organized into finer groupings including:
- Species: ZipcodeZoo has pages for 111 species, subspecies, varieties, forms, and cultivars in the Genus Discocactus: D. · D. albispinus · D. alteolens · D. amazonicus · D. araneispinus · D. bahiensis (Discocactus) · D. bahiensis subsp. gracilis · D. bahiensis subsp. subviridigriseus · D. bahiensis subviridigriseus · D. bahiensis var. gracilis · D. boliviensis · D. boomianus · D. buenekeri · D. cangaensis · D. catingicola · D. catingicola subsp. griseus · D. catingicola subsp. rapirhizus · D. catingicola var. griseus · D. cephaliaciculosus · D. cephaliaciculosus subsp. nudicephalus · D. chrystallophyllus · D. crassispinus · D. crystallophilus · D. diersianus · D. diersianus subsp. goianus · D. estevesii · D. ferricola (Discocactus) · D. flavispinus · D. goianus · D. griseus · D. hartmannii (Discocactus) · D. hartmannii subsp. giganteus · D. hartmannii subsp. magnimammus · D. hartmannii subsp. patulifolius · D. hartmannii subsp. setosiflorus · D. hartmannii var. magnimammus · D. heptacanthus (Discocactus) · D. heptacanthus subsp. catingicola · D. heptacanthus subsp. magnimammus · D. heptacanthus subsp. melanochlorus · D. heptacanthus 'Boliviensis' (Discocactus) · D. heptacanthus 'Cangaensis' (Discocactus) · D. heptacanthus 'Crassispinus' (Discocactus) · D. heptacanthus catingicola (Discocactus) · D. heptacanthus magnimammus · D. heptacanthus var. semicampaniflorus · D. horstii (Discocactus) · D. horstii f. aurea cristata · D. horstii f. cristata · D. horstii var. buenekeri · D. horstii var. christalonius · D. horstii var. jourdanianus · D. horstii var. robustus · D. horstii var. silicicola · D. insignis (Discocactus) · D. latispinus · D. latispinus subsp. pseudolatispinus · D. latispinus subsp. pulvinicapitatus · D. lehmannii · D. lindaianus · D. linkii · D. magnimammus · D. mamillosus · D. melanochlorus · D. multicolorispinus · D. nigrisaetosus · D. pachythele · D. paranaensis · D. patulifolius · D. piauiensis · D. placentiformis (Discocactus) · D. placentiformis subsp. alteolens · D. placentiformis subsp. multicolorispinus · D. placentiformis subsp. pugionacanthus · D. placentiformis multicolorispinus · D. placentiformis pugionacanthus · D. placentiformis var. alteolens · D. placentiformis var. pulvinicapitatus · D. promentigibbus · D. prominentigibbus · D. pseudoinsignis (Discocactus) · D. pseudolatispinus · D. pugionacantha · D. pugionacanthus · D. pulvinicapitatus · D. rapirhizus · D. semicampaniflorus · D. silicicola · D. silvaticus · D. spinosior · D. squamibaccatus · D. subnudus · D. subterraneo-proliferans · D. subviridigriseus · D. tricornis · D. woutersianus · D. zehnteri · D. zehntneri (Discocactus) · D. zehntneri subsp. albispinus · D. zehntneri subsp. araneispinus · D. zehntneri subsp. boomianus · D. zehntneri subsp. buenekeri · D. zehntneri subsp. horstiorum · D. zehntneri araneispinus · D. zehntneri boomianus (Discocactus) · D. zehntneri buenekeri · D. zehntneri var. albispinus (Discocactus) · D. zehntneri var. araneispinus (Discocactus) · D. zehntneri var. boomianus · D. zehntneri var. horstiorum (Discocactus) · D. zehntneri zehntneri
Further Reading
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- Edward F. Anderson : The Cactus Family. Timber Press: Portland (Oregon), 2001, p. 218-221 ISBN 0-88192-498-9
- N. L. Britton, J. N. Rose: The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family. Washington, 1920
Sources
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