SEPT., 1914. EUPHORBIACE.E MILLSPAUGH 385 



the leaves. Leaves opposite, pilose on both surfaces, 2-5 mm. long, 

 oblong or ovate-oblong, unequally subcordate at the base, obtuse to 

 acutish, the margin closely denticulate especially toward the apex; 

 petioles i mm. pilose; stipules interpetiolar, subulate, 1.5 mm., pilose. 

 Involucres pyriform-globose, peduncle bracteate, unilateral, somewhat 

 pilose; lobes minute, lanceolate, inflexed; glands in two pairs, squami- 

 form, cupped; appendages white, the two upper auriculiform, thrice the 

 size of the lower flabelliform pair; stamens minute, ligulate, pilose at 

 the base. Capsule somewhat pilose; seed triangular-ovoid, .6ox.4o 

 mm., pinkish-ashen; facets plane; ridges evenly convex; sulci 4, closed, 

 the two basal anastomosing; seed-coat pitted. 

 Type locality: VENEZUELA, Valles de Aragua, near Cura. Humb. Bonpl. 



& Kunth. Type in herb. Paris; fragment in herb. Berlin. 

 Distribution: From Brazil through British Guiana to the U. S. Colombia, 

 and in our region as follows: 



NICARAGUA, Omotopec, Wright (hb. Gray; F. 409466; Mo. 



39421). 



HONDURAS, San Pedro Sula, Thieme 5475 (F. 197624). 

 GUATEMALA, Gualan, Deam 234 (F. 413605; hb. Gray). Reta- 



luleu, Bernoulli & Carlo 2421 (hb. Berlin). 

 YUCATAN, Gaumer 629 pt. (F. 196353; Mo. 39402), 938 pt. (F. 

 196349* 19635.' 19635^ 196354; Mo. 39403; U. S. 571824), 

 939 pt. (Mo. 39404); Izamal, Caec. et Ed. Seler 3924 (F. 

 413598; hb. Berlin); Chichen Itza, Millspaugk 107 

 (F. 196973)- 



MEXICO, Orcutt 4444 (F. 283317); Jipimeo, Gregg 812 (hb. Gray); 

 Vera Cruz, Pringle 8477 (F. 143598, 400497; Mo. 39406; 

 U. S. 396334; hb. Gray), Greenman 250 (F. 189715); Oaxaca, 

 Seler 1990 (F. 413597; hb. Gray; hb. Berlin), Conzatti & 

 Gonzales 1189 (F. 413603; hb. Gray); Sinaloa, Lamb 372 

 (F. 413581; hb. Berlin). 

 LOWER CALIFORNIA, San Bias, Wright 1358 (F. 166388, 267605, 



409509; Mo. 39405; U. S. 22163; hb. Gray). 

 SANTO DOMINGO, Mayerhoff (hb. Berlin). 



Chamaesyce rutilis sp. nov. 



Prostrate, spreading from a rather ligneous base; stems few and 

 very short; branches compressed, woolly except on the median line 

 beneath, divaricate, internodes long; hairs multicellular. Inflorescence 

 solitary in the axils of the leaves or leafy bracts. Leaves slightly pilose 

 beneath, oblong to oblong-lanceolate, 4x7 to 6xio mm., broadest at 

 the upper third, inaequilateral, narrowly or broadly auriculo-oblique 



