EUPHORBIACEA. 101 
9. Euphorbia sphzrorrhiza, Benth. Fl. Hartw. p. 8; DC. Prodr. xv. 2, p. 68 ; 
Hook. Ic. Pl. t. 346. 
Tithymalopsis spherorrhiza, K1\. et Garcke, Tricocc. p. 44. 
Nort Mexico, region of San Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 807) ; 
Sourn Mexico, Lagos (Hartweg, 36). Hb. Kew. 
90. Euphorbia stictospora, Engelm. in Torr. Bot. U.S. & Mex. ‘Bound. Surv. 
p. 187; DC. Prodr. xv. 2, p. 41. 
Anisophyllum. senile, Kl. et Garcke, Tricoce. p. 28. 
Kansas; Texas; New Mexico.—Norri Mexico, Chihuahua (Thurber), region of San 
Luis Potosi, 6000 to 8000 feet (Parry & Palmer, 811); Sours Mexico, near Tacubaya 
(Bourgeau, 186, in part). Hb. Kew. 
91. Euphorbia strigosa, Hook. et Arn. Bot. Beech. Voy. p. 310; DC. Prodr. 
xv. 2, p. 73. 
Euphorbia pedunculata, K1. in Seem. Bot. Voy. ‘ Herald,’ p. 277. 
Poinsettia pedunculata, K\. et Garcke, Tricocc. p. 102. 
Norra Mexico, Sierra Madre (Seemann, 2162); Soura Mexico, Zacuapan (Linden, 
795), Tepic (Barclay). Hb. Kew. 
92. Euphorbia thymifolia, Burm. Fl. Ind. p. 2; DC. Prodr. xv. 2, p. 47. 
Nort Mexico, Chihuahua (Potts); Sours Mzxico, Vera Cruz to Orizaba (Miller, 
1156); Nicaragua, Greytown (Zate)—This species is widely dispersed in Tropical 
America, AFRica, and Asta. Hb. Kew. 
93. Euphorbia tomentella, Engelm. ; DC. Prodr. xv. 2, p. 32. 
Nort Mexico, San Luis Potosi (Berlandier). 
94. Euphorbia torrida, DC. in Atti Sc. Ital. in Tor. p. 157; DC. Prodr. xv. 2, 
p. 63. 
Euphorbia marginata, H. B. K. Nov. Gen. et Sp. ii. p. 61. 
Euphorbia bonplandii, Sweet, Hort. Brit. ed. 3, p. 600. 
Dichrophyllum marginatum, K1. et Garcke, Tricoce. p. 44. 
‘Sourn Mzxico, Vera Cruz (Humboldt & Bonpland), La Antigua, Vera Cruz (Galeotti, 
3765; Linden, 783). Wb. Kew. 
95. Euphorbia trachysperma, Engelm. in Torr. Bot. U.S. & Mex. Bound. 
Surv. p. 189; DC. Prodr. xv. 2, p. 33. 
Norta Mexico, San Pedro, Sonora (Wright, 1832). Hb. Kew. 
96. Euphorbia umbellulata, Engelm.; DC. Prodr. xv. 2, p. 40. 
SourH Mexico, Guadalajara (Gregg, 856), without locality (Parkinson). Hb. Kew. 
97. Euphorbia velleriflora, Boiss. in DC. Prodr. xv. 2, p. 40. 
Anisophyilum velleriflorum, K1. et Garcke, Tricoce. p. 28. | 
Sourn Mexico, near Ios Bafios (Ehrenberg), near Hacienda del Limon (Karwinshi). 
