Botany

A Preliminary Revision of the North American Species of Cactus, Anhalonium, and Lophophora

Coulter, John Merle, 1851-1928· 5 chapters· 18,498 words

U. S. Department of Agriculture Division of Botany CONTRIBUTIONS FROM THE U. S. NATIONAL HERBARIUM Vol. III--No. 2 Issued June 10, 1894 Preliminary Revision of the North American Species of Cactus, Anhalonium, and Lophophora. by John M. Coulter. Published by Authority of the S...

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2. Part 2

With depressed top and very rarely branching, 1 to 3.5 cm. in diameter: tubercles very small (about 1 mm. long) and wart-like, crowded, shedding the spines with age and giving t...

4. Part 4

Mamillaria sulcata Engelm. Pl. Lindh. 246 (1845), not Pfeiff. (1848). Mamillaria strobiliformis Muhlenpf. Allg. Gart. Zeit. xvi. 19 (1848), not Scheer (1850). Mamillaria calcara...

3. Part 3

Cylindrical: tubercles crowded, glaucous, cylindrical (somewhat broadest above), about 4 mm. long, with dense axillary wool containing bristles: radial spines 25 to 30, very sle...

1. Part 1

U. S. Department of Agriculture Division of Botany CONTRIBUTIONS FROM THE U. S. NATIONAL HERBARIUM Vol. III--No. 2 Issued June 10, 1894 Preliminary Revision of the North America...

5. Part 5

It is only possible to deal with the forms that occur within the borders of the United States, as even individual stations of common Mexican forms are little if at all known. Th...