Sclerocactus polyancistrus (Engelm. & J.M. Bigelow) Britton & Rose [ Echinocactus polyancistrus Engelm. & J.M.Bigelow]
Torrey, J., Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean in 1853-6 (1856)
Pacif. Railr. Rep.

vol. 4 (1853-1856)
t. 2
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Sclerocactus polyancistrus (Engelm. & J.M. Bigelow) Britton & Rose


name cited:
Echinocactus polyancistrus Engelm. & J.M.Bigelow
name recognized:
Sclerocactus polyancistrus (Engelm. & J.M. Bigelow) Britton & Rose
name recognized (basionym):
Echinocactus polyancistrus Engelm. & J.M.Bigelow
drawing: P. Roetter
family: Cactaceae
subfamily: Cactoideae
tribe: Cacteae
epithet: polyancistrus,-a,-um

Illustration contributed by:
San Francisco Public Library, San Francisco, California, U.S.A.
link to this page:
http://www.plantillustrations.org/illustration.php?id_illustration=71745
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heterotypic synonyms:
Echinocactus polyancistrus Engelm. & J.M.Bigelow;
no full size  illustration available (3a)