ROBINSON AND GREENMAN. — GENUS VERBE5INA. 559 



\o&, Bourgeaii, no. 1210; near Guadalajara, Jalisco, Palmer, no. 698, 

 Pi'ingle, no. 1797; Sinaloa, Lamb, no. 4G3, immature. 



■1- H- Stems narrowly winged: outer bracts of tlie involucre two thirds as long as 

 the inner, oblong, obtuse; pedicels tonientose, 2 to 8 mm. long: Mexican. 



87. V. montanoifolia. Stems terete, narrowly 4-winged ; inter- 

 nodes long: leaves opposite, sinuately and pinnately 3(-5)-lobed, 8 to 16 

 cm. long, 8 to 13 cm. broad, scabrous above, green and densely pubescent 

 beneath with short stiff spreading hairs ; lobes ovate, denticulate not 

 incised : corymbs compound, the primary branches long, but the ultimate 

 tomeutose pedicels considerably shorter than in the preceding species : 

 iuvolucral scales 2-seriate, green, 4 to 6 mm. long: rays 8 to 10, bright 

 yellow, 6 mm. long: body of the disk-achene oblanceolate, 4 mm. long, 

 glabrous ; wings about equal, rather broad, rounded at the summit; awns 

 2, long, subequal. — Eaviues, Patzcuaro, Michoacan, 11 November, 1890, 

 C. G. Pr Ingle, no. 3475. 



-(- -t- -1- Stems with rather narrow wings : pedicels 4 to rarely 10 mm. long, covered 

 witli a sordid pubescence : S. American. 



83. V. caracasana. Shrub 2 to 3 m. high : branches sparingly 

 scabrous-pubescent; wings 4, herbaceous, 1 to 2 mm. in breadth, straight 

 (not crisped as in V. innnatlfidci) : leaves opposite, sinuately 3-lobed, 

 very scabrous and white-punctate above, somewhat paler but green and 

 sordid-pubescent beneath, rather thin, 8 to 16 cm. long, 6 to 11 cm. broad : 

 lobes acute or acuminate, mucronulate-serrulate to dentate, neither lobed 

 nor incised : corymbs ample, at first fastigiate, at length loose : pedicels 

 slender, more or less flexuous, sordid-pubescent ; involucre in authesis 

 cylindrical, 5 mm. in breadth ; scales 3-4-seriate, narrowly oblong, acu- 

 tish, pubescent: rays 6 to 8, little exserted : fruiting heads 1.5 cm. in 

 diameter : achenes broadly obcordate ; the body oblong, cuneate at the 

 base, 4 mm. long, somewhat tuberculate ; wings broad ; awns 2, nearly 

 as long as the achene. — Caracas, Birschel, December, 1854 ; also near 

 Tovar, Venezuela, 1854-1855, at 1,200 m. altitude, A. Fendler, no. 693. 



+--)-■)--(- Stems wingless : Mexican. 



80. V. TRiLOEATA, Rob. & Greenm. Proc. Am. Acad, xxxii. 46. — 

 Rocky gulches, Monte Alban, Oaxaca, Pringle, no. 4875. 



§ 11. OcHRACTixiA. Heads small : rays white or nearly so : leaves 

 alternate. 



