100 Contributions from the Gray Herbarium 
cOoLL.: G., K., Mo., U.S.); chaparral near the Ojuelo Mine, 1640 m., 
13 Sept. 1903, Endlich 259 (Ber., fragm. G.). —T. 2. Fie. 9. 
48. V. BicoLor Blake. Branching shrub, the younger branches 
canescent-strigillose, the older gray-brown, subglabrate. Leaves 
subopposite or the upper alternate, roundish or rotund-ovate, 
retuse, rounded, or obtuse at apex, truncate-rounded at, base, 
above (in dried specimen) blackish-green, harshly strigillose, be- 
neath very densely grayish-strigillose, rather venose, 1.2-1.8 cm. 
long, 8-18 mm. wide, on petioles 5-7 mm. long, canescent-strigil- 
lose. Heads solitary, 1.8 em. wide, terminating the branches, on. 
peduncles 2.8-4.3 em. long; disk 6-7 mm. high, 11-12.5 mm. wide. 
Involucre 3-seriate, 3-4 mm. high, graduated, the phyllaries acute, 
densely strigillose, the outer oblong, 0.8 mm. broad, the inner 
oblong-ovate, 2mm. broad. Rays about 12, oblong-oval, 6.5 mm. 
long, 3 mm. broad; disk-corollas puberulous, 3 mm. long (tube 
0.5 mm.). Pales subobtuse, puberulous on back and apex, 5 mm. 
long. Achenes (immature) subsericeous, 2.5 mm. long. Awns 2, 
unequal, about 1.2 mm. long; squamellae about 6-8, acute, laciniate, 
0.8 mm. long. — Blake! Proc. Am. Acad. li. 519 (1916). — MEX- 
ICO: Hripaueo (?): between Rio Grande and Jamaltepec (?), 
Dec. 1829, C. Ehrenberg 1227 (typEs: Ber., 
ee 49. V. Greggii (Gray), comb. nov. Much Granehed undershrub, 
3-4 dm. high or less, the stem ascending or suberect, in youth 
canescent with a dense fine pubescence, in age subglabrate, clothed 
with a grayish bark; branches opposite. Leaves opposite, broadly 
ovate or oval, rounded to obtusish at apex, at base cuneate or 
rounded-cuneate, entire, above dull green, finely and densely 
strigillose and gland-dotted, beneath densely canescent-strigillose, 
7-25 mm. long, 5-18 mm. wide, gradually reduced above; petioles 
2-4 mm. long. Heads solitary at apex of stem and branches, 1.8- 
4 cm. wide, on canescent-strigillose peduncles 6 cm. long or less; 
disk 7-9 mm. high, 5-8 mm. wide. Involucre 3-4-seriate, gradu- 
ated, 4 mm. high, the phyllaries ovate to oblong-ovate or the outer- 
most narrowly oblong, acute, canescent-strigillose, somewhat 
blackish-green, below somewhat indurated and ribbed, with 
shorter subherbaceous apex. Rays 8-10, oblong, 8-13 mm. long, 
3-6 mm. wide, rarely (according to Greys styliferous but sterile; 
disk-corollas subglabrous, the tube very obscure, capping the 
achene, 3 mm. long. Pales somewhat yellowish on sides, with 
