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1. aizoaceae (Phocagallery / aizoaceae) Habitat: mainly South Africa although they also occur in Madagascar, Horn of Africa, Arabian peninsula, Island of Elba, Australia and New Zealand. Description: the Aizoaceae (Rudolphi) family of ... 2. ancistrocactus (Phocagallery / ancistrocactus) Habitat: Mexico, Texas. Description: globular, sometimes upright cylindrical, cacti with big areoles each of them bearing a central hooked spine; they may develop a taproot. The diurnal flowers are borne ... 3. aporophyllum (Phocagallery / aporophyllum) Habitat: intergeneric hybrids. Description: a group of hybrids obtained by crossing Aporocactus with Epiphyllum. Soil: fertile mix with a pH of 6. Location: a shady and well ventilated site; ... 4. ariocarpus (Phocagallery / ariocarpus) Habitat: Texas, New Mexico, Northern Mexico. Description: they have a short stem with hard, large tubercles and a fleshy taproot. The white, pink or purple flowers arise from the centre. They are adapted ... 5. arrojadoa (Phocagallery / arrojadoa) Habitat: Brazil. Description: a genus with upright stems, sometimes exhibiting a horizontal or oblique habit. Some may be cespitose, others such as A. rhodantha quite tall. The glossy green stems have ... 6. astrophytum (Phocagallery / astrophytum) Habitat: Mexico, Texas. Description: cacti with globular but more often columnar stems which may have four to eight ribs (up to ten as the plants grow older) and be covered with a variable number of ... 7. blossfeldia (Phocagallery / blossfeldia) Habitat: Northern Argentina, Bolivia. Description: a dwarf genus with short ribless stems, spiny tubercles, beetroot-like roots. Flowers are borne from April to September. In the wild they grow in fissures ... 8. carnegiea (Phocagallery / carnegiea) Habitat: Arizona, southwestern California, State of Sonora (Mexico). Description: a genus of gigantic columnar cacti that may reach 15 metres (50 ft) in height. Very long-lived, they’re commonly ... 9. chamaecereus (Phocagallery / chamaecereus) Habitat: Northern Argentina, sub-Andean mountain ranges. Description: this genus tends to develop large clusters of stems 5 to 10 cm (2 to 4 in) long; they bear numerous red flowers in late summer. A ... 10. copiapoa (Phocagallery / copiapoa) Habitat: Chilean deserts. Description: a genus of globular plants, some of which may develop a cylindrical stem and form clusters with age. The yellow or reddish yellow bell-shaped flower arise from ... 11. euphorbiaceae (Phocagallery / euphorbiaceae) Habitat: the family is distributed across warm temperate, subtropical and tropical areas occurring in Central and Austral Africa, Madagascar, the Canary Islands, Ethiopia, Zambia, with a few species growing ... 12. geraniaceae (Phocagallery / geraniaceae) Habitat: nearly all the species are from South Africa. Description: a family of dicotyledonous, herbaceous plants. The leaves are normally opposite, palmate-veined, sometimes covered in soft hairs. ... 13. melocactus (Phocagallery / melocactus) Habitat: West Indies, Brazil, Cuba, Peru, Mexico. In their native countries they can be also found growing on the seashore. Description: globular cacti with straight ribs and very variable in spination. ... 14. monvillea (Phocagallery / monvillea) Habitat: Paraguay, northeastern Argentina, Brazil, Peru. Description: a genus of clumping cacti whose slender stems are up to 2 metres (6.5 ft) long with more or less rounded ribs (up to nine) bearing ... 15. opuntia (Phocagallery / opuntia) Habitat: the genus is widespread across America, from sea level to 3000 metres (9800 ft). Description: these plants are variable in size and develop braches with flat, cylindrical or globular ribless ... 16. pachycereus (Phocagallery / pachycereus) Habitat: Mexico, desert of Baja California, United States. Description: a group of columnar cacti with slender stems branching from the base that may take a shrub-like form, sometimes of gigantic proportions. ... 17. pereskia (Phocagallery / pereskia) Habitat: tropical America. Description: a primitive genus of cactaceous plants forming shrubs with a prostrate or climbing habit; the leaves are oval and stalked, the areoles large with tufts of tough ... 18. polaskia (Phocagallery / polaskia) Habitat: Oaxaca, Puebla, southern Mexico. Description: tree-like cacti with light green stems marked by 7-12 triangular ribs. The areoles are 3-4 mm (0.1-0.15 in) wide and bear from 3 to 8 radial spines ... 19. stenocereus (Phocagallery / stenocereus) Habitat: Venezuela, Cuba, Jamaica, Mexico, Arizona. Description: a genus of very diverse cacti, usually large-sized and branched, showing an upright, columnar habit. Nocturnal flowers appear during the ... 20. strombocactus (Phocagallery / strombocactus) Habitat: Mexico. Description: this rare genus comprises globular cacti with ribs growing in spirals, rhomboidal tubercles and a taproot. The diurnal, white flowers are produced in the summer and may ...
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