Acanthocereus horridus Britton & Rose 1920
Publication The Cactaceae 2: 122, fig. 181 (1920).
Type : Eichlam s.n., Guatemala, sans localité précise (mais Zacapa selon Williams in Fieldiana Bot. 24: 190. 1962), année 1909, conservé dans l’herbier du New York Botanical Garden (NY 34788 : holotype).
"1. Acanthocereus horridus sp. nov.
Plants stout, the joints strongly 3-angIed or 3-winged, the young growth 5 or 6-angled; wings with deep undulations; areoles large, 3 to 6 cm. apart; spines brown or blackish when young; radial spines 1 to 6, very short, conic, less than 1 cm. long; central spine usually 1, sometimes 2, often very stout and elongated, sometimes 8 cm. long; flower, including the ovary, 18 to 20 cm. long; tube 4 cm. long, including the funnelform throat 12 cm. long ; throat 4 cm. broad at mouth; outer perianth-segments linear, brown or greenish, 6 cm. long; inner perianth-segments 3 to 4 cm. long; stamens white; style thick, cream-colored; fruit 3.5 cm. long, light red, glossy, covered with large areoles bearing white felt ; skin thick, finally splitting as the fruit ripens; pulp red.
Collected in Guatemala by F. Eichlam in 1909 (New York Botanical Garden No. 34788). It has frequently flowered in cultivation, both at Washington and at New York.
Here we are disposed to refer E. W. Nelson’s plant from San Juan Guichicovi, Oaxaca, Mexico, collected June 21 to 24, 1895 (No. 2729).
Figure 181 shows a part of a joint of the type specimen."
horridus : du latin horridus, hérissé : hérissé d’épines.
Fiche créée le 06/03/2010.
Type : Eichlam s.n., Guatemala, sans localité précise (mais Zacapa selon Williams in Fieldiana Bot. 24: 190. 1962), année 1909, conservé dans l’herbier du New York Botanical Garden (NY 34788 : holotype).
Synonyme de
Acanthocereus tetragonus (Linné) Hummelinck 1938Commentaires
Description originale:"1. Acanthocereus horridus sp. nov.
Plants stout, the joints strongly 3-angIed or 3-winged, the young growth 5 or 6-angled; wings with deep undulations; areoles large, 3 to 6 cm. apart; spines brown or blackish when young; radial spines 1 to 6, very short, conic, less than 1 cm. long; central spine usually 1, sometimes 2, often very stout and elongated, sometimes 8 cm. long; flower, including the ovary, 18 to 20 cm. long; tube 4 cm. long, including the funnelform throat 12 cm. long ; throat 4 cm. broad at mouth; outer perianth-segments linear, brown or greenish, 6 cm. long; inner perianth-segments 3 to 4 cm. long; stamens white; style thick, cream-colored; fruit 3.5 cm. long, light red, glossy, covered with large areoles bearing white felt ; skin thick, finally splitting as the fruit ripens; pulp red.
Collected in Guatemala by F. Eichlam in 1909 (New York Botanical Garden No. 34788). It has frequently flowered in cultivation, both at Washington and at New York.
Here we are disposed to refer E. W. Nelson’s plant from San Juan Guichicovi, Oaxaca, Mexico, collected June 21 to 24, 1895 (No. 2729).
Figure 181 shows a part of a joint of the type specimen."
Étymologie
Acanthocereus: du grec akantha, épine: cierge épineux.horridus : du latin horridus, hérissé : hérissé d’épines.
Numéros de collecte
Vous pouvez chercher les numéros de collecte pour cette espèce dans :- la base de Ralph Martin : Acanthocereus horridus
- la base de Christophe Ludwig : Acanthocereus horridus
Forum
Vous pouvez faire une recherche sur le forum.Auteur
philippe (contacter l'auteur ou écrire aux admins de l'encyclopédie)Fiche créée le 06/03/2010.
Fiches de botanistes :
Britton, Nathaniel Lord
Rose, Joseph Nelson
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