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

By John M. Coulter

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

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A Preliminary Revision of the North American Species of Cactus...

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

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6, 7)—Type probably lost. Dr. Engelmann had hut a few bunches of spines, the rest of the description being made up from Dr. Parry’s notes, but I have failed to find these bunches of spines in the Engelmann collection. ” The species is clearly very near E. polycephalus, but should be distinguished from it readily by its simple habit, and white spines. 4. Echinocactus texensis Hopf. Allg. Gart. Zeit. x, 297 (1842). Echinocactus lindheimeri Engelm. Pl. Lindh. 246 (1845). Mostly depressed (sometimes globose), 20 to 30 cm.

The lower rim of the cup-like depression which terminates the tubercle and contains the pulvillus is sometimes slightly prolonged into a tooth, which in prismaticum becomes the sharp tip of the tubercle. The “minutely furfuraceous-punctulate” character of the tubercle is common to all the species of Anhalonium I have seen, and simply represents the external openings of the remarkably long cuticular passageways to the stomata. 4. Anhalonium pulvilligerum Lem. Cact. (1839). Anhalonium elongatum Salm-Dyck (1850).

Lindh. 246 (1845). Mostly depressed (sometimes globose), 20 to 30 cm. in diameter, 10 to 15 cm. high, simple: ribs mostly 21 (sometimes 27, and in smaller specimens 13 or 14) and undulate: spines stout and fasciculate, reddish, compressed; the exterior 6 or 7 radiant, straightish or curved, unequal, 12 to 20 mm. long in some eases, 30 to 50 mm. in others, much shorter than the solitary and stout recurved central, which is sometimes 1 to 6 mm, broad: flowers about 5 cm. long, particolored (scarlet and orange below to white above): fruit subglobose, scarlet, 16 to 18 mm.

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