412 Field Museum of Natural History — Botany, Vol. II 



Chamaesyce thymifolia (Linn.) 



Euphorbia thymifolia Linn. Sp. PI. 454. 



Chamaesyce tomentulosa (Wats.) 



Euphorbia tomentulosa Watson Proc. Am. Acad. 22:476. 



Chamaesyce tonsita nom. nov. 



Euphorbia polycarpa hirtella Boiss. DC. Prodr. 15:44, non E. hirtella 



Boiss. Cent. Euph. 7. 

 Chamaesyce polycarpa hirtella Millsp. Parish Cat. PI. Salton Sink 6. 



Chamaesyce Torralbasii (Urban) 



Euphorbia Torralbasii Urban Sjnnb. Antill. i :340. 



Chamaesyce trachysperma (Engelm.) 



Euphorbia trachysperma Engelm. Mex. Bound. 2:189. 



Chamaesyce Turpini (Boiss.) 



Euphorbia Turpini Boiss. Cent. Euph. 12. 



Chamaesyce imibellulata (Engelm.) 



Euphorbia umbellulata Engelm. Boiss. DC. Prodr. 15:40. 



Chamaesyce velleriflora (Kl. & Gke.) 



Anisophyllum velleriflorum Kl. & Gke. Tricocc. 28. 

 Euphorbia velleriflora Boiss. DC. Prodr. 15:40. 



Chamaesyce velligera (Schaur.) 



Euphorbia velligera Schaur. in Linnea 20:728. 



Chamaesyce vestita (Boiss.) 



Euphorbia vestita Boiss. Cent. Euph. 7. 



Chamaesyce villosior (Greenm.) 



Euphorbia villosior Greenman Proc. Am. Acad. ser. 2, 32:297. 



Chamaesyce Urbanii nom. nov. 



Euphorbia villosula Urban Symb. Antill. 1:340 (1899), 

 non Pax Bot. Yahrb. 19:118 (1894). 



Chamaesyce Watsoni (Millsp.) 



Euphorbia Watsoni Millsp. Zoe i :347. 



Eumecanthus Kl. & Gke. Monat. Akad. Berl. 1859:248. 



Leaves aequilateral, usually sparse below, the upper opposite; 

 inflorescence solitary or cymose; bracteoles obsolete; seeds ovoid-glob- 

 ose, deeply and regularly honeycomb-pitted each pit with a secondary 

 pit or papule in its fundus. 



Type species: Euphorbia ariensis HBK. 



Leptopus Kl. & Gke. ibid 249, non Decne. 



Adenopetalum Kl. & Gke. ibid 250, non Turcz. 



