MALACOCARPUS. 
203 
Type locality: Stony hillslopes near Valparaiso, Chile. 
Distribution: Along the coastal hills of central Chile. 
Dr. Rose found this plant very common in two localities in central Chile. One was in 
pasture on the hills above Valparaiso, altitude about 1,000 feet; the other was on the edge of 
cliffs about Valparaiso Harbor and only about 20 feet above the water. In the latter 
locality it was associated with Neoporteria subgibbosa. 
Under Echinocactus soehrensii, Haage and Schmidt (1920) offer for sale the varieties 
albispinus, brevispinus, and niger. 
Cactus horridus Colla, Echinocactus tuberisulcatus Jacobi, and E. soehrensii were all 
based upon plants from Valparaiso and we believe we are justified in combining them under 
the oldest specific name available. 
Illustrations: Mem. Accad. Sci. Torino 37 1 : pi. 17, f. 1, as Cactus horridus; Schumann, 
Gesamtb. Kakteen Nachtr. f. 25; Monatsschr. Kakteenk. n: 73, as Echinocactus soehrensii. 
25 . Malacocarpus curvispinus (Bertero). 
Cactus curvispinus Bertero, Merc. Chil. 598. No. 13. 1829; Colla, Mem. Accad. Sci. Torino 37: 76. 1833. 
Echinocactus curvispinus Remy in Gay, FI. Chilena 3: 16. 1847. 
Echinocactus froehlichianus Schumann, Gesamtb. Kakteen Nachtr. 124. 1903. 
Simple or clustered, subglobose or short-columnar, 15 cm. high, pale green; ribs 16, broad and 
obtuse, divided into large tubercles; spines 15, all radials, or at least no very definite central ones, 
straight or somewhat curved, flexuous; flowers yellow or reddish brown, large, 3 to 6.5 cm. long; 
perianth-segments lanceolate, acute; stigma-lobes green; scales on the flower-tube and ovary small, 
scattered, bearing short wool and setae in their axils. 
Type locality: Chile. 
Distribution: Chile. 
Mr. Sohrens tells us that he obtained the specimens, which were named Echinocactus 
froehlichianus, from the mountains south of Santiago and that he now considers the species 
the same as Echinocactus curvispinus. 
Bertero’s type of Cactus curvispinus is preserved in the museum at Santiago. It con¬ 
sists of one small fragment bearing two clusters of spines and one flower; the spine-cluster 
contains 10 or 11 spines, the longest of which is 2 cm. long; the flower is 3 cm. long with the 
ovary bearing small scales with woolly axils and the uppermost scales bearing bristles in 
their axils. 
Illustrations: Bluhende Kakteen 2: pi. 63; Schumann, Gesamtb. Kakteen Nachtr. f. 31, 
as Echinocactus froehlichianus; Mem. Accad. Sci. Torino 37 1 : pi. 16, f. 2, as Cactus curvi- 
spinus; Schelle, Handb. Kakteenk. 193. f. 126, as Echinocactus curvispinus. 
26 . Malacocarpus mammillarioides (Hooker). 
Echinocactus mammillarioides Hooker in Curtis’s Bot. Mag. 64: pi. 3558. 1837. 
Echinocactus hybocentrus Lehmann in Pfeiffer, Enum. Cact. 65. 1837. 
Echinocactus centeterius Lehmann in Pfeiffer, Enum. Cact. 65. 1837. 
Echinocactus pachycentrus Lehmann in Pfeiffer, Enum. Cact. 66. 1837. 
Echinocactus centeterius major Lemaire and Monville in Lemaire, Cact. Gen. Nov. Sp. 91. 1839. 
Echinocactus nunintularioides Steudel, Nom. ed. 2. 1: 536. 1840. 
Echinocactus centeterius pachycentrus Salm-Dyck, Cact. Hort. Dyck. 1849. 33. 1850. 
Echinocactus centeterius grandiflorus Labouret, Monogr. Cact. 244. 1853. 
Subglobose to short-cylindric, bright green; ribs about 14 to 16, broad, obtuse, strongly tuber- 
cled; areoles rather large, felted; spines about 7, short, spreading, slender; flowers large, yellowish red; 
perianth-segments oblong, obtuse; ovary bearing small scales with a little wool in their axils. 
Type locality: Chile. 
Distribution: Chile. 
This species was introduced by a Mr. Hitchen from Chile and flowered in 1836. 
The status of this species is very confusing. It was described very briefly by Hooker 
who had never seen the living plant; its exact habitat was not given and it has never with 
certainty been re-collected. 
