Sclerocactus parviflorus Clover & Jotter ssp. havasupaiensis (Clover) Hochstätter

Succulenta, Netherlands 74e (1): 38-44, 1995

Havasupai Clover´s Cactus

Basionym: Sclerocactus havasupaiensis Clover Maer. Journ. Bot., 29:172 f.1-2, 1942.

Type: " Specimen typicum legit Clover & Belknap jr. (Clover 6403), in Havasupai Canyon, Arizona.." MICH Isotype: US 2346044, 2346045, POM 275269.

Synonymy

Sclerocactus havasupaiensis Clover var. roseus Clover Amer. Journ. Bot., 29:173 f.3-4, 1942.
Echinocactus parviflorus (Clover & Jotter) L. Benson var. roseus (Clover) L. Benson Cacti of Arizona, ed. 2, 102, 1950.
Echinocactus parviflorus (Clover & Jotter) L. Benson var. havasupaiensis (Clover) L. Benson, Cacti of Arizona, ed. 2, 104, 1950.
Sclerocactus whipplei (Engelmann & Bigelow) Britton & Rose var. roseus (Clover) L. Benson, Cact. & Succt. J.(US) 38:104, 1966.

Other representative material studied.

Arizona (Inner Grand Canyon):fh 52.2, North Rim,1,700m,
fh 52.3, middle Inner Grand Canyon, 1,620m,
fh 52.4, Hualapai, 1,180m,
fh 52.5, Supai, 1.090m

SPECIES LIST
Sclerocactus parviflorus ssp. havasupaiensis

Sclerocactus parviflorus ssp. havasupaiensis, fh 52.2, North Rim, 1,700m