ROBINSON AND GREENMAN. — GENUS VERBESINA. 555 



exceeded by the flowers of the at length subglobose disk : achenes (young) 

 obovate, 2 mm. long, puberulent; wings equal but ear-like, confined to 

 the upper part of the achene and more or less adnate to the two pappus 

 awns, these nearly as long as the body of tlie achene. — Chiapas, Mexico, 

 near Tumbala, altitude 1,200 to 1,700 m., E. W. Nelson, no. 3364. 

 Types in herb. Gray and herb. U. S. Nat. Museum. 



2. Leaves grayish-tonientulose (not scabrous) beneatli : pedicels slender : Mexican. 



72. V. cinerascens. Branches downy with soft spreading pubes- 

 cence, terete, pithy : leaves alternate, lance-oblong, attenuate at both 

 ends, remotely serrate, puberulent and scabrous above, grayish-tomentu- 

 lose beneath, piunately veined, 1 to 1.3 dm. long, 3 cm. broad: corymbs 

 compound, fastigiate, about 40-headed ; pedicels tomeutulose, 3 cm. long, 

 erect, the middle one abbreviated ; ovate-oblong involucral scales acutish, 

 pubescent, 4 mm. long: flowers pale yellow: rays about 10, narrowly 

 oblong, 8 mm. in length : achenes of the disk-flowers narrowly and some- 

 what unequally winged; the body 2.5 mm. long, upwardly puberulent. 

 — On cool wooded slopes of a barranca near Guadalajara, Jalisco, 20 

 November, 1888, C. G. Pringle, no. 1806 (distributed as V. salici- 

 folia). Type in herb. Gray. 



3. Leaves tomentulose at least on the veins beneath, green and at length decidedly 



scabrous on both surfaces: scales of involucre broadly ovate; pedicels short 

 and thick. 



73. V. crassipes. Shrub with terete wingless dark purple scabrous- 

 tomeutose branches : leaves alternate, obovate-lanceolate, serrate, acute, 

 sessile by a cuneate neither auriculate nor decurrent base, papillose and 

 very scabrous above, green, tomentulose (at least on the nerves and 

 pinnate veins) and at length scabrous beneath, 6 to 9 cm. long, a third 

 as broad, the margins tending to be revolute : corymbs dense, many- 

 headed ; pedicels thick, mostly very short : fruiting heads depressed- 

 globose, 1.5 cm. in diameter: involucral scales ovate-oblong to obovate, 

 finely appressed-pubescent, the outer obtuse, thickened below, the inner 

 acute, somewhat stramineous; jjales broad, ovate, acute, stramineous, 

 somewhat ciliate above: rays about 10, linear-oblong, 8 to 9 mm. lono- ; 

 achenes of the disk-flowers, 3 to 4 mm. long, oblong, narrowly and sub- 

 equally winged ; awns 2, slender, subequal. — Oaxaca, Caiiada Sta. 

 Maria, 8 December, 1895, C. & E. Seler, no. 1476, also by the same 

 collectors in the district of Nochistlan, 14 December, 1895, no. 1590. 

 Types in herb. Gray and herb. Berlin Museum. 



