﻿Small: Botany of Southeastern United States 615 



Euphorbia zinniiflora. 



Perennial, dark green. Stems usually solitary, erect, 3-5 dm. 

 tall, with a few ascending branches below the 3 -rayed umbel, pu- 

 bescent with short scattered hairs : leaves alternate except those 

 subtending the umbel ; blades narrowly linear-lanceolate, or nearly 

 linear, 2-5 cm. long, mostly reflexed or deflexed, acute or rather 

 obtuse, sparingly pubescent above or glabrate beneath, somewhat 

 revolute, nearly sessile or with somewhat hairy petioles less than 

 1 mm. long : peduncles slender, erect, 1-3.5 cm * l° n g> angled espe- 

 cially above : involucres campanulate, 1.5— 2 mm. high, angled: 

 glands oblong-reniform, fully 1 mm. broad ; appendages spreading, 

 white or pink, suborbicular or 4-sided, 3-3.5 mm. long, barely as 

 broad, rounded or emarginate at the apex. 



In sandy soil, Yellow River valley, Georgia. Spring. 



While collecting in the Yellow River valley in middle Georgia 

 during the spring of 1895, I encountered a curious looking Euphor- 

 bia, growing in the sands of the river swamp. The habit of the 

 species is peculiar, the few branches of the main stem and the rays 

 of the main umbel are terminated by several-rayed-umbels with nar- 

 row spreading leaf-life bracts. The rays of these ultimate umbels are 

 filiform, or nearly so, and characteristically elongated. The leaves 

 are conspicuous on account of their reflexed or deflexed position. 

 As compared with Euphorbia eriogonoides, the involucres of this 

 species are very large, sometimes measuring one centimeter across 

 the appendages and closely resemble in aspect the heads of species 

 of Zinnia. The body of the involucre differs from that of most 

 other, if not all members of the subgenus Tithymalopsis in being 



broader than high. 



Euphorbia pergamena. 



Biennial or perennial, glaucescent. Stems branched at the base ; 

 branches slender, wire-like, 0.5-1.5 dm. long, glabrous or nearly 

 so, forking; leaves opposite; blades parchment-like, oblong or 

 ovate, very oblique, 3-6 mm. long, obtuse, serrulate, minutely 

 pubescent on both sides, conspicuously inequilateral, cordate or 

 subcordate at the base, short-petioled : involucres campanulate, 

 -5 mm. high, minutely pubescent, with a split on one side through 

 which the pedicel protrudes : glands transversely oblong, purple 

 of red-purple, variable in size, about 0.5 mm. broad; appendages 

 white or pink, as long as the glands or longer, one much longer 

 than the others, more or less uneven along the edges : capsules 



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