i 



rERESKIA. 



15 



7. Pereskia moorei sp. nov. 



A much branched shrub about i meter high, covered with brown bark; branches stout; leaves 

 orbicular or obovate-oblong, rounded or apiculate at the apex, somewhat cuncately narrowed at the 

 base, thick and fleshy, 4 to 8 cm. long, 3.5 to 6 cm. wide; areoles suborbicular, 4.5 nun. in diameter, 

 the wool gray; spines at each areole mostly 2 to 4, very unequal, the longest 7.5 cni. long or less, ashy 

 gray, blackish toward the apex; flowers purplish red, about 4.5 cm. long; ovary few-leafed, its leaves 

 obovate-oblong, 2.5 to 3 cm. long, bearing i to 3 black spines about 5 mm. long in the axils; sepals 



petal 



obovate, obtuse, 3.5 cm. long, rose-colored; stamens about 2 cm. long; areoles on the ovary large, 

 filled with a mass of short, white wool and bearing an occasional short spine; fruit not known. 



Fig. 8. — Pereskia moorei. Xo-66. 



Fig. 9. — Pereskia guatnacho. 



Described from the specimen preserv^ed in the herbarium of the British Museum of 

 Natural History collected at Corumba, Brazil, by Spencer Moore, No. 955, who has kindly 

 furnished us with data for this description, together with a sketch of the type specimen. 

 Specimens were also collected at Corumba by F. C. Hoehne in 1908, No. 4863, who sup- 

 posed it to be P. sacharosa. 



Figure 8 is from a photograph of an herbarium specimen from Matto Grosso, Brazil, 

 received from F. C. Hoehne in 1915. 



8. Pereskia weberiana Schumann, Gesamtb. Kakteen 762. 1898. 



Shrubby, much branched, glabrous, 2 to 3 meters high, the slender round branches about 3 mm. 

 thick; leaves ovate to elliptic, about 3 cm. long and 2 cm. wide, sessile, acute at the apex, obtuse at 

 the base; areoles circular, slightly elevated, the wool short, whitish, fading brown; spines 3 to 6 at the 

 lower areoles, solitary at the upper, 2 cm. long or less, terete, acicular, yellow or horn-colored; flowers 

 clustered, white, about i cm. long or less; ovary about 2 mm. long, bearing a few white, woolly areoles; 

 outer segments of the perianth triangular, acute, woolly at the axils, the inner spatulate to obovate; 

 stamens a little longer than the petals; stigma-lobes 3 or 4, erect. 



