Rathbunia alamosensis (J.M.Coulter) Britton & Rose 1909

Publication Contributions from the United States National Herbarium 12: 415 (1909).
Basionyme Cereus alamosensis J.M.Coulter 1896

Synonyme de

Stenocereus alamosensis (J.M.Coulter) A.C.Gibson & K.E.Horak 1979

Commentaires

Publication:
"THE GENUS CEREUS AND ITS ALLIES IN NORTH AMERICA.
…
Rathbunia alamosensis (Coult.).
Cereus alamosensis Coulter, Contr. Nat. Herb. 3:406. 1896.
Type locality: Near Alamos, Sonora.
Distribution: Southern Sonora and northern Sinaloa, Mexico."

Des mêmes auteurs: The Cactaceae 2:169-170, fig. 241-242 (1920):
"1. Rathbunia alamosensis (Coulter) Britton and Rose, Contr. U. S. Nat. Herb. 12:415. 1909.
Cereus alamosensis Coulter, Contr. U. S. Nat. Herb. 3:406. 1896.
Cereus sonorensis Rünge in Schumann, Monatsschr. Kakteenk. 11:135. 1901.
Rathbunia sonorensis Britton and Rose, Contr. U. S. Nat. Herb. 12:415. 1909.
Cereus pseudosonorensis Gürke, Monatsschr. Kakteenk. 20:147. 1910.
Columnar, 2 to 3 meters high, at first erect but generally finally bent or curved, 8 cm. thick or less, rooting at or near the tip and thus forming new plants; ribs 5 to 8, obtuse; radial spines about 11 to 18, spreading, straight, whitish; centrals 1 to 4, much stouter than the radials, 3 to 5 cm. long, porrect or ascending; flowers scarlet, 4 to 10 cm. long; scales on ovary small, acute or obtuse, with a small tuft of felt and a few bristle-like spines in the axils, those on the flower-tube with a tuft of felt and sometimes with a spine; tube-proper 1.5 cm. long; style nearly white; stigma-lobes 6, cream-colored; ovary tuberculate; fruit red, globular, 3 to 4 cm. in diameter, naked or bearing scattered clusters of 5 or 6 white acicular spines.
Type locality: Near Alamos, Sonora, Mexico.
Distribution: Southern Sonora, Sinaloa and Tepic, Mexico.
The plant grows in large clusters sometimes 8 meters in diameter; its flowers are various in size, and the perianth-limb is apparently quite variable in the degree of obliquity. In Mexico, the plant is called cina.
Cereus simonii Hildmann (Monatsschr. Kakteenk. 5:43. 1895), an unpublished name, according to Schumann and Gürke, belongs here. Schumann at one time described this plant as Cereus stellatus, a very different plant from southern Mexico which we have described elsewhere as Lemaireocereus stellatus(see page 92, ante).
Illustrations: Blühende Kakteen 3: pl. 122; Monatsschr. Kakteenk. 11: 135; Rep. Mo. Bot. Gard. 16: pl. 3, f. 5, all as Cereus sonorensis; Gesamtb. Kakteen Nachtr. f. 4; as Cereus stellatus.
Plate XXV, figure 1, shows the top of a plant received from the Missouri Botanical Garden in 1904, which flowered in the New York Botanical Garden, June 23, 1915; figure 2 shows a flowering piece of a plant sent to the New York Botanical Garden from Guaymas, Mexico, by Dr. Rose in 1910. Figures 241 and 242 show flowers of a plant collected by Dr. MacDougal at Torres, Sonora, in 1902."

Étymologie

Rathbunia: en l'honneur du géologue et biologiste Richard Rathbun (1852-1918), directeur du United States National Museum et spécialiste des invertébrés marins.
alamosensis: de la localité d'origine, Alamos, dans l'état mexicain de Sonora.

Numéros de collecte

Vous pouvez chercher les numéros de collecte pour cette espèce dans :

• la base de Ralph Martin : Rathbunia alamosensis
• la base de Christophe Ludwig : Rathbunia alamosensis

Forum

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Auteur

philippe (contacter l'auteur ou écrire aux admins de l'encyclopédie)
Fiche créée le 26/11/2004, mise à jour le 20/12/2008.