190 THE CACTACEAE. 
3. Malacocarpus grossei (Schumann). 
Echinocactus grossei Schumann, Monatsschr. Kakteenk. 9: 44. 1899. 
Globose to depressed or sometimes cylindric, sometimes up to 1.7 meters high; ribs usually 16, 
acute, somewhat crenate; areoles small, circular; spines 3 to 7, spreading, acicular, curved, white, the 
longer ones 4 cm. long; flower large, funnelform, citron-yellow, 4 cm. long, when fully expanded 
broader than long; perianth-segments oblanceolate to spatulate, obtuse, serrate above; stamens 
numerous, shott ; style slender, longer than the stamens; stigma-lobes 12 to 17, linear, white, recurved; 
scales on the ovary numerous, linear, purplish, with wool and bristles in their axils; fruit short- 
oblong, 2.5 cm. long, 2 cm. in diameter; seeds black, 2 mm. long. 
Fic. 200.—Malacocarpus grossei. Fic. 201.—M. napinus. 
Type locality: Paraguay. 
Distribution: Paraguay, between Carepegua and Acaay. 
_ The species is known to us only from illustrations and description; it and the pre- 
ceding one are much the largest of the genus, as known to us. The Blithende Kakteen 
shows the spines as yellow, but they were originally described as white. 
Illustrations: Blithende Kakteen 2: pl. 89; Mdllers Deutsche Gart. Zeit. 25: 474. f. 6, 
No. 18, Monatsschr. Kakteenk. 9: 44; Schumann, Gesamtb. Kakteen Nachtr. f. 19, as 
Echinocactus grossei. . 
Figure 200 is copied from the first illustration cited above. 
\~ 4. Malacocarpus nigrispinus (Schumann). 
> Echinocactus nigrispinus Schumann, Monatsschr. Kakteenk. 9: 45. 1899. 
Cespitose, globose to short-columnar, green; ribs 20 or more, acute; spines g or 10, somewhat 
curved, slender, reddish when youn , afterward sil ; rm ; of the 
ovary filled with hairs and bristles. Mvenys Mowers yellow, funnelform; scales 
Type locality: Between Carepegua and Acaay, Paragua 
Mstribution: Paraguay. ” “Ny 
We have had small plants of this species growing which do not differ very much, if any. 
from Malacocarpus schumannianus. , 
