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21. gymnocactus (Phocagallery / gymnocactus) Habitat: Mexico. Description: cacti with a globular or cylindrical green stem, apex usually covered with wool-like hairs, conical tubercles and radial spines. The flowers appear in the summer and open ... 22. hylocereus (Phocagallery / hylocereus) Habitat: Mexico, Guatemala, Costa Rica, the Antilles, and some northern regions of South America. The genus is spread over tropical areas with a humid, jungle-like climate. Description: a genus of forest ... 23. machareocereus (Phocagallery / machareocereus) Habitat: Mexico, southern United States, Central America, Peru. Description: a group of upright or sprawling cacti with basal branching; they spread by means of runner-like stems with an ascending tip. ... 24. oreocereus (Phocagallery / oreocereus) Habitat: distributed over a wide area: Andean ranges of Peru, Bolivia, Argentina and Chile growing at heights of up to 3000 m (9800 ft). Description: these plants are typical of mountain cacti, having ... 25. ortegocactus (Phocagallery / ortegocactus) Habitat: Mexico (Oaxaca State), growing in the crevices of dark volcanic rocks at approximately 2500 m (8200 ft) of altitude. Description: a genus of small, globular cacti having a greenish-gray epidermis ... 26. 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. ... 27. peniocereus (Phocagallery / peniocereus) Habitat: stony, arid regions of Mexico. Description: a group of plants showing upright or climbing habit with slim, angular stems with few short spines. The nocturnal, long-tubed flowers may be fragrant. ... 28. 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 ... 29. pilosocereus (Phocagallery / pilosocereus) Habitat: Brazil, West Indies, Central America and northern part of South America. Description: a genus of rather large, columnar cacti with a bluish or grayish-green stem. At maturity, plants develop ... 30. 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 ... 31. rhipsalidopsis (Phocagallery / rhipsalidopsis) Habitat: tropical forests of Brazil. Description: an epiphytic, short-lived genus with many cultivars available. The flattened stems have undulate or dentate margins, small hairy areoles and flower profusely. ... 32. schlumbergera (Phocagallery / schlumbergera) Habitat: rainforests of Brazil. Description: epiphytic, non-parasitic, short day plants having flattened, jointed stems that tend to bifurcate. The commercially available plants are, for the most part, ... 33. sulcorebutia (Phocagallery / sulcorebutia) Habitat: Bolivian mountains, between 2000 and 4000 metres (6500-13000 ft). Description: a genus of small, globular plants that may form clusters; the areoles, usually with pectinate spines, are vertically ... 34. welwitschiaceae (Phocagallery / welwitschiaceae) Habitat: foggy deserts of Angola and Namibia. Description: this creeping plant develops two long, ribbon-like leaves only; they tend to split with age since the tip becomes dry and dies while the leaf ... 35. F.A.Q. ('Uncategorised Content') QUESTIONS AND ANSWERS Here beginners can find answers to their most frequently asked questions: 1 – Some of my succulents never set seed. Why is that so? 2 – How can I get my cacti to ... Monday, 12 January 2009 36. What is Cites? ('Uncategorised Content') CITES (the Convention on International Trade in Endangered Species of Wild Fauna and Flora) is an international agreement between governments. Its aim is to ensure that international trade in specimens ... Wednesday, 07 January 2009 37. Fitofarmaci (Coltivazione/Le malattie) ... attuano una penetrazione profonda, così da raggiungere la pagina opposta delle foglie. - Sistemici: vengono assorbiti dai tessuti vegetali, e distribuiti a tutta la pianta attraverso il sistema circolatorio ... Saturday, 04 April 2009 38. Temperature Minime Invernali (Coltivazione/Minime invernali) ... di luce (eziolatura); inoltre se non si provvede alle annaffiature la pianta prima avvizzisce poi si secca per effetto della traspirazione che continua. Molti cacti sopravvivono al gelo in quanto durante ... Thursday, 15 January 2009 39. Lithops (Approfondimenti/Mesembriantemi) ... a tubercoli, rugosa, presenza di macchie trasparenti od opache di vario colore, dimensione e disegno chiamate "finestre", e dalle quali la luce penetra all'interno della pianta al fine di attivare ... Wednesday, 07 January 2009 40. Piante Grasse - LE CACTACEE (Piante grasse/CD-ROM) ... che in tema di coltivazione. Si rivolge a tutti coloro che non si accontentano di poche e scarne notizie su questa o quella pianta, ma desiderano un'informazione chiara ed esauriente. Il libro oltre che ... Thursday, 19 August 2010
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