390 FIELD MUSEUM or NATURAL HISTORY BOTANY, VOL. II 



broad and flat ridged; sulci 4-5, tight closed, those of the dorsal facets 



transverse of the ventral oblique. 



Type locality: West Indies, Mona Island, Ubero, on limestone plateau, 



Britton, Cowell & Hess 1841. Type in herb. Field Museum, sheet 



No. 413680. 

 Distribution: Known only from the type. 



CHAMAESYCE CONFERTA Small Fl. SE. U. S. 713, 1903. 



Plant spreading, prostrate, red-tinged throughout; root slender, 

 elongated, annual; branches virgate, compressed, .5-2 dm. long, often 

 forking, pilose above, glabrous beneath, internodes on diffuse plants 

 1-1.5 crn - l n g- Inflorescence solitary in the axils of the upper leaves 

 or leafy bracts. Leaves approximating in pairs or, in small, dense plants 

 and on the branchlets of diffuse ones closely ranked, lanceolate-ovate, 

 5-10 mm. long 3-5 mm. broad, sparsely long and straight pilose while 

 young, glabrous in age, the base strongly oblique, sub-cordate in the 

 larger leaves, acute, serrate; petioles short, glabrous except those of the 

 young leaves; stipules subulate-aristate, crisp-pilose, the bases often 

 broadened and sometimes bifurcate. Involucres sessile or nearly so, 

 tubular-campanulate, villous without and within; lobes ligulo-deltoid, 

 ciliate; glands narrowly-oblong, transverse, cupped; appendages small, 

 the larger pair broader above and irregularly erose-dentate, the smaller 

 crenate-dentate, but slightly exceeding the glands; pedicels of the male 

 flowers glabrous, of the female villous ; ovary pilose ; style trifid two-thirds 

 its length, the branches bifid one-third. Capsule ovoid-globose, minute- 

 ly pilose; cocci rounded; seed ovoid, .70 x .50 mm., ashen, slightly quad- 

 rangular, obtuse, facets convex, the angles rounded, the ridges broad 

 and convex, sulci 5, mere closed fissures, the basal pair often anasto- 

 mosing; seed-coat farinose. 



Type locality: Florida, Coconut Grove, Small 6" Nash. Type in herb. 

 New York Botanical Garden; fragments in herb. Field Museum 

 No. 197585. 



Distribution: FLORIDA, Lemon City, Hitchcock (F. 233636); Miami, 

 Pollard & Collins 229 (F. 76683, 197286; U. S. 330180; Small 6 s 

 Carter 1079 (N. Y.; F. 185172), Curtiss 173 (F. 409460; Mo. 39415); 

 Coconut Grove, Simpson 536 (U. S. 22161), Curtiss 5486 (F. 409461; 

 U. S. 247194; Mo. 39298); Biscayne Bay, Curtiss (F. 109189, 308419, 

 23190; U. S. 22172; Mo. 39425; hb. Gray; hb. Berlin); Long Prairie, 

 Britton 211 (N. Y. ; F. 172783); between Homestead and Camp 

 Jackson, Small & Wilson (N. Y.; F. 172583); Jenkins to Everglades, 

 Eaton 206 (F. 230855). 



