548 PROCEEDINGS OF THE AMERICAN ACADEMY. 



the two short awus. — Linnsea, xxxiv. 528 (nomen nudum), & Bull. 

 Soc. Bot. France, xii. 79 (nomen nudum) ; Britton, Bull. Torr. Club, 

 six. 150 (nomen subnudum) ; Rusby, Mem. Torr. Club, iii. no. 3, 60 

 (nomen nudum). — Andes of Bolivia, in woods, La Paz, altitude 2,600 

 to 3,700 m., January, 1861, G. 3Iandon, no. 57 in herb. Gray; October, 

 1895, Rushy, no. 1721 ; 1889, Bang, no. 4. 



++■«■*+ Stem wingless : leaves opposite at least below : heads corymbose : 

 Mexican species. 



= Leaves large, gray -pubescent beneath : achenes with broad fimbriate wings. 



44. V. SOKORIA, Gray, Proc. Am. Acad. xv. 37 ; Hemsl. 1. c. 190. — 

 San Luis Potosi, Parry & Palmer, no. 466. 



= = Leaves smaller, lanceolate, white beneath : achenes very narrowly winged. 



45. V. HYPOGLAUCA, Sch. Bip. An attractive shrub, 3 to 5 m. high, 

 with habit of the following species. — Sch. Bip. in Klatt, Leopoldina, 

 xxiii. 144 (1887). — S. Mexico, Ciimbre de Acalcingo, Liebmann, no. 

 485; Oaxaca on the Sierra de San Felipe, altitude 3,000 m., Pr'mgle, 

 no. 6041. 



++ ++ H-,. ++ Stem (at least on the upper part of the internode) bearing narrow, soon 

 corky wings : leaves alternate : aciienes very narrowly margined : fruticose. 

 S. Mexican species. 



= Leaves whitened beneath by an extremely fine and close pubescence : pedicels 



short, glabrous. 



46. V. NERiiFOLiA, Hemsl. 1. c. 188. — Chiapas, Ghlesbreght, no. 528, 

 Nelson, no. 3466, Type number in herb. Gray. 



= = Leaveslooselycanescent-tomentose beneath : pedicels longer and more slender, 

 pubescent with spreading hairs. 



47. V. OAXACANA, DC. Prodr. v. 614, not Klatt, 1. c. xxiii. 144. — 

 Mountains of Oaxaca, Andrieux, no. 301, ace. to DC. 1. c. To this spe- 

 cies may be referred L. C. Smith's nos. 877 and 895, coll. at San Juan 

 del Estado at 1,800 m. altitude. 



= = = Leaves slightly paler but green beneath : pedicels puberulent to 



tomentulose. 



48. V. LiEBiiAXN'ii, Sch. Bip. in Klatt, 1. c. xxiii. 144 (1887). V. 

 variabilis, Rob. & Greenm. Proc. Am. Acad, xxxii. 47 (1896). — S. 

 Mexico, Cumbre de Estepa, Liebmann, no. 538 ; mountains of Oaxaca, 

 E. W. Nelson, no. 1393, Pringle, no. 4918, Conzatti, no. 31 ; and a doubt- 

 ful specimen from Guerrero, E. W. Nelson, no. 2215. 



