4i66 FLORA OF TEXAS. 



(1-2) nodding. Dry sterile soil. June-September. Stem 

 1° high ; leaves 1' long. 



CROTONOPSIS, Michx. 



Floioers monoecions, in terminal and axillary clusters ; 

 calyx of the sterile flowers 5-parted ; petals and stamens 5 ; 

 filaments separate, dilated upward ; fertile flowers below 

 the sterile; calyx 3-o-parted; petals none; petal-like 

 glands 5, opposite the calyx-lobes; ovary 1-celled, 1-ovuled ; 

 stigmas^, each 2-cleft; /rt^iY globose, indehiscent, 1-seeded. 

 — A low and slender hYimc\img annual ; leaves linear or 

 lanceolate, short- petioled, entire, green and hairy above, 

 the lower surface, like the branches, covered with silvery 

 scales ; floivers minute. 



C. LINEARIS, Michx. Dry sandy soil. August-Septem- 

 ber. Stem 6-12' high, alternately branched or forking ; 

 leaves J -1' long, alternate or opposite. 



CNIDOSCOLUS, Pohl. 



Floiuers monoecious, apetalous, cymose; calyx corolla- 

 like ; calyx of the sterile flower salver-shaped, 5-lobed ; 

 stamens 10, the 5 inner ones with monadelphous filaments ; 

 fertile floiuers intermingled with the sterile ones ; calyx of 

 5 sepals, convolute in the bud ; styles 3, many-parted ; 

 capsule of three 1-celled, 1-seeded, 2-valved cai-pels. — Herds 

 or shrills, with alternate leaves, and white flowers. 



C. STiMULOSus, Gray. Herbaceous, bristly with stinging 

 hairs ; stem erect, simple or branched ; leaves long-peti- 

 oled, round-cordate in outline, palmately 3-5-lobed or 

 parted, the divisions toothed, pinnatifid, or somewhat bipin- 

 natifid, often discolored; calyx ^ho^wy ', capsule oblong; 

 seed oblong, smooth, spotted. (Jatropha stimulosa, Michx.) 

 Dry pine-barrens. April-September. Stem J°-2° high ; 

 floioers sometimes dioecious. Perennial. 



