Read e-book online A Preliminary Revision of the North American Species of PDF

By John M. Coulter

Contributions from the U.S. nationwide Herbarium, 1894.

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Fl. Colorado (Porter and Coulter). 121 60. ). Mamillaria arizonica Engelm. Bot. Calif. i. 244 (1876). 5 to 10 cm. —Type, the specimens of Cous, Palmer, Bischoff and Johnson, all in Herb. Mo. Bot. Gard. Sandy and rocky soil from southern Utah through northern and western Arizona to southern California. Specimens examined: Arizona (Cous of 1865; Cous & Palmer of 1865 and 1872; Palmer of 1869; Bischoff of 1871; Miller of 1881; Rusby 617 of 1853; Pringle of 1884): Utah (Johnson of 1871, 1872, 1874; Parry of 1875, 1877): California (Parish of 1880): also specimens cultivated in Mo.

Lophophora williamsii lewinii (Hennings). Anhalonium lewinii Hennings, Gartenflora, 410 (1888). A much more robust form, with more innocuous (usually 13) and hence narrower and more sinuous ribs, anti much more prominent tufts. (Ill. Monats. Kakteenkuude, October, 1891)—Type unknown. 132 Along both sides of the Lower Rio Grande. Specimens examined: Texas (Win. Lloyd of 1890, mouth of the Pecos; Mrs. Nickels of 189, 1893): Mexico (specimen collected across the Rio Grande, near Laredo, in 1894): also growing in Mo.

This curious genus is strictly Mexican, and, so far as at present recorded, is characteristic of Coahuila, but a single species (engelmanni) of the four or five known crossing the Rio Grande in the Great Bend. 131 3. LOPHOPHORA, gen. nov. Depressed-globose, proliferous and cespitose, tuberculate-ribbed, unarmed plants: tubercles at first conical and bearing at summit a flower-bearing areola with a dense tuft or short pencil of compact erect hairs, when mature becoming broad and rounded (with the remnant of the penicellate tuft as a persistent pulvillus in a small central depression) and coalescing into broad convex vertical ribs: spine bearing areolae obsolete: flowers borne at the summit of nascent tubercles: ovary naked (that is free from scales, but often downy): fruit and seed unknown.

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A Preliminary Revision of the North American Species of Cactus... by John M. Coulter

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