Epiphyllum
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Haw. |
Epiphyllum is a genus of plants fromthe cactus family (Cactaceae). The botanical name of the genus is derived from the Greek words έπί epí for "on" and φύλλον phýllon for "leaf", together means "on the leaf" and refers to the place of origin of the flowers on the leaf-like shoots. The type species of the genus is Epiphyllum phyllanthus .
description
The species of the genus Epiphyllum mostly grow epiphytically , but some also grow lithophytically . They are freely branching, upright, climbing or hanging shrubs that often develop aerial roots . Old shoots are round in cross-section, usually without thorns and often woody. Younger shoots are flattened like a leaf, have edges with broadly rounded or pointed teeth and are sometimes lobed or divided on the areoles . Thorns are usually absent.
The tray-shaped or funnel-shaped flowers arise laterally, stand individually and are 10 to 30 centimeters long. They usually open at night. The pericarpel is covered with small scales and only rarely with hair or bristles. The long tube has bare scales and is abruptly widened at the throat. The outer bracts are whitish, yellowish or pale pink, the inner pale yellow or white.
The egg-shaped to elongated, thornless fruits have small scales and areoles. They are 4 to 9 inches long and 2 to 5 inches in diameter. The kidney-shaped seeds are black.
Distribution and systematics
The genus Epiphyllum is mainly found in Central America and Mexico . However, some species also grow in the Caribbean and northern South America . It was first described in 1812 by Adrian Hardy Haworth . The type species of the genus is Cactus phyllanthus .
The genus includes the following species:
- Epiphyllum anguliger (Lem.) G.Don
- Epiphyllum baueri cod
- Epiphyllum cartagense (FACWeber) Britton & Rose
- Epiphyllum columbiense (FACWeber) Dodson & AHGentry
- Epiphyllum costaricense (FACWeber) Britton & Rose
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Epiphyllum crenatum (Lindl.) G.Don
- Epiphyllum crenatum var. Crenatum
- Epiphyllum crenatum var. Kimnachii Bravo ex Kimnach
- Epiphyllum grandilobum (FACWeber) Britton & Rose
- Epiphyllum guatemalense Britton & Rose
- Epiphyllum hookeri Haw.
- Epiphyllum laui Kimnach
- Epiphyllum lepidocarpum (FACWeber) Britton & Rose
- Epiphyllum oxypetalum (DC.) Haw.
- Epiphyllum phyllanthus (L.) Haw.
- Epiphyllum pittieri (FACWeber) Britton & Rose
- Epiphyllum pumilum Britton & Rose
- Epiphyllum rubrocoronatum (Kimnach) Dodson & AHGentry
- Epiphyllum thomasianum (K.Schum.) Britton & Rose
Synonyms of the genus are Phyllocactus Link , Arthrophyllum Labor. and Marniera Backeb.
proof
literature
- Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 248-252 .
- Curt Backeberg : Die Cactaceae: Handbuch der Kakteenkunde . 2nd Edition. tape II . Gustav Fischer Verlag, Stuttgart New York 1983, ISBN 3-437-30381-3 , p. 739-755 .
- Nathaniel Lord Britton , Joseph Nelson Rose : The genus Epiphyllum and its allies . In: Contributions from the United States National Herbarium . Volume 16, 1913, pp. 255-262, panels 78-84, (online) .
Individual evidence
- ↑ Synopsis plantarum succulentarum cum descriptionibus synonymis locis, observationibus anglicanis culturaque . P. 197, London 1812; on-line
- ^ Edward F. Anderson : The great cactus lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 249-252 .