Bae 
PANS NIE 
36 Contributions to Western Botany. 
2A2B2C. Fruit conspicuously winged and wings deeply cut 
and tolded over one side toward each other, inclosing the 
two raised ribs which hare stalked and pellucid globules — 
scattered along them, outside of fruit without prominent 
ribs and sparsely tessellately rugose. 
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WEDELIA. Involucre 3-lobe:l. 
1. SELINOCARPUS Gray. 
Delicate, slender-stemmed perenniais, with small fruit and 
flowers; growing in‘the Larrea Zone of southern New Mexico, 
Arizona and Yexas. One species in Nevada. 
A, Plants rather riscid, rarely puberulent only; stamens 5. 
1. S. diffusus Gray Am. Jour. Sci. 2 15 262. Stems widely 
spreading; leaves ovate to Ovate-oblong; flowers nearly sessile; 
mostly in pairs; calyx tube 14” long. Overton, Neyada, and also 
in ‘Texas, ete. ; 
2. §. angustifolius Gray Mex. Bound. 170. Stems not de- 
pressed, 6-8’ high; leaves narrowly elliptical, nearly sessile; flow- 
ers solitary and at length nodding; erlyx tube 1-2” long, funnel- 
form; stamens exserted; seeds with 5 Wings which are as wide as 
the fruit and enlarged at base where they form ribs; intermediate 
ribs 5. This seems to be the same as §. lanceolatus Wooton 
Torr. Bull. 25 304. 
2A. Plants not viscid: stamens 2. 
3. S. chenopodioides Gray Am. Jour. Sci. 2 15 318. Plants 
grayish, erect to widely spreading, leafy up to the cymes; leaves 
triangular ovate, acute, margins mostly wavy; flowers eymosely 
clustered and subumbellate, cup-shaped, with scarcely any tube; 
pedicels short. Arizona and New Mexico. 
2. BCERHAVIA LL. 
Involuere of 1-3 very small bractlets to each flower, absent 
in B. spicata var. Palmeri; stamens 1-3, stigma sbield-shaped; 
fruit jointed to the pedicel and larger above, pyriform in B. 
