9 6 



THE CACTACEAE. 



According to Schumann (Gesamtb. Kakteen 420. 1898), Echinocactus cupreatus Posel- 

 ger (Forster, Handb. Cact. ed. 2. 602. 1885) is related to this species. He states that it 

 is distinguished by the darker brown color and fewer spines of a brown-black color, lighter 

 at the base. 



Illustration: Bliihende Kakteen 1: pi. 45, as Echinocactus nigricans. 



Figure 105 is copied from the illustration above cited. 



Fig. 105. Neoporteria nigricans. 



Fig. 106. Neoporteria fusca. 



4. Neoporteria jussieui (Monville). 



Echinocactus jussieui Monville in Salm-Dyck, Cact. Hort. Dyck. 1849. 170. 1850. 



Simple, globose or short- cylindric, dark or bluish green; ribs 13 to 16, rather stout, divided into 

 prominent tubercles; radial spines 7 or perhaps more, dark brown, somewhat spreading; central 

 spines 1 or 2, 2.5 cm. long; flowers from near the center of the plant, 3 to 3.5 cm. long; perianth- 

 segments linear-oblong, acute, pinkish, but sometimes described as yellow; style and stigma-lobes 

 reddish ; ovary bearing scales and these woolly in their axils ; fruit not known. 



Type locality: Not cited. 



Distribution : Chile. 



Echinocactus niger (Salm-Dyck, Cact. Hort. Dyck. 1849. 34. 1850) and E. jussianus 

 Lemaire (Labouret, Monogr. Cact. 247. 1853), undescribed, belong here. A variety, cristatus 

 (Rumpler in Forster, Handb. Cact. ed. 2. 581. 1885), is described as having 18 to 20 ribs. 



The original description of this species is very meager while recent descriptions are 

 scarcely more satisfactory. Both Schumann and Weber describe the flowers as yellow, 

 while Giirke in Bliihende Kakteen illustrates them as pinkish. The illustration cited 

 below suggests relationship with E. subgibbosus. The flowers of both are pinkish. So 

 far as we know, N. jussieui never has bristles in the axils of the scales on the ovary, and 

 this seems to be true of all the species of the genus. 



The plant illustrated in the Monatsschrift fiir Kakteenkunde (27: 53. 191 7) seems to 

 be some species of Malacocarpus. 



