Sclerocactus polyancistrus (Engelmann et Bigelow) Britton et Rose
gr. polyancistrus = vielhakig.




Literatur

Echinocactus polyancistrus Engelm. et Bigelow in Engelmann, Proc. Amer. Acad. 3. 1856, S. 272.
— Bigelow in Explor. & Surveys Route Mississippi River Pacific Ocean. Botany, Wash.
1856, S. 29 u. Pl. 2. f. 1—2. — Förster Handb. Cact. 1886, S. 520—521. — Coulter J.
Contr. U. S. Nat. Herb. III 1894, S. 367. — Kunze E. in Monatsschr. Kakteenk. 20.
1910, S. 130—134 u. Abb. — Fobe F. in Monatsschr. Kakteenk. 20. 1910, S. 60—62.
— Vaupel F. in Monatsschr. Kakteenkde. 31. 1921, S. 20 u. Abb. S. 21 — Schumann K.
Gesamtbeschr. 1898, S. 337—338. — Schelle E. Kakteen 1926, S. 198—199. Benson L.
Cacti Ariz. 1948, S. 107.
Sclerocactus polyancistrus (Engelm. & Big.) Britton N. L. & Rose J. N. Cactaceae III 1922, S.
213—215 u. Abb. S. 214 u. Pl. 13 Fig. 4. — Baxter E. M. Calif. Cact. 1935, S. 79—80 u.
Abb. — Backeberg C. in Beitr. Sukkulentenkd. Pfl. 3. 1939, S. 58—59 u. Abb.; Cactaceae
V 1961, S. 2679—2680 u. Abb.; Kakt. Lex. 1966, S. 402 u. Abb. 379. — Benson L. in
Cact. Succ. Journ. Am. 1966, S. 105—106; Native Cact. Calif. 1969, S. 206 u. Areal‑
karte.


Diagnose
nach Coulter l. c.:

„Ovate or at length subcylindric, becoming 10 to 25 cm high and 7,5 to 10 cm in diameter;
ribs 13 to 17, obtuse, tuberculately interrupted; radial spines 20 or more, compressed and white,
the uppermost wanting, the 4 upper ones broader and longer (2,5 to 5 cm) and dusky‑tipped,
the laterals shorter (2 to 2,5 cm), the lowest ones very short (1,2 cm) and subsetaceous; central
spines of several forms, the uppermost one (rarely a second similar but smaller one above or
beside it) compressed‑quadrangular, elongated (7,5 to 12,5 cm), white with dusky tip, curved
upward, the other 5 to 10 teretish or subangled, bright purple‑brown, upper ones longer (5




Krainz, Die Kakteen, 15. I. 1972 C VIII b