190 the; cactaceae. 
3. Malacocarpus grossei (Schumann). 
Echinocactiis 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. 
Fig. 200. —Malacocarpus grossei. Fig. 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 Bltihende Kakteen 
shows the spines as yellow, but they were originally described as white. 
Illustrations: Bliihende Kakteen 2: pi. 89; Mollers 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 9 or 10, somewhat 
curved, slender, reddish when young, afterward silvery; flowers yellow, funnelform; scales of the 
ovary filled with hairs and bristles. 
Type locality: Between Carepegua and Acaay, Paraguay. 
Distribution: Paraguay. 
We have had small plants of this species growing which do not differ very much, if any 
from Malacocarpus schumannianus. 
