304 
AMERICAN JOURNAL OF BOTANY 
[Vol. io, 
Subsection 3 d 
28. V. squamulosa Hook. & Arn., in Hook. Comp. Bot. Mag. 2: 44. 1836. 
A singular species, strongly reminiscent of the group Buxifoliae of 
Hispaniola in its general habit. 
Sierra de Santa Cruz, Kuntze. 
Subsection 30 
Corolla-lobes strongly pubescent within; achenes densely resinous. 
Corolla-lobes glabrous within; achenes pubescent. 
Middle and outer involucral scales flat, acuminate to rounded 
but never subulate, veinless or with an inconspicuous 
mid vein. 
Panicle raised on a long, leafless peduncle; leaves obovate, 
softly and densely tomentose beneath. 
Panicle leafy at the base. 
Leaves rounded or cordate at base, broadly ovate or 
oblong, thick, heavy, scabrous above. 
Leaves distinctly cordate or subauriculate at base, 
closely short-pubescent beneath; exposed portion 
of the glabrate involucral scales broadly ovate. 
Leaves rounded at base; exposed portion of the 
pubescent or arachnoid scales lanceolate or 
narrowly ovate. 
Lower leaf-surface and inflorescence densely 
ferruginous-tomentose; involucral scales green, 
pubescent on the back chiefly near the apex. 
Lower . leaf-surface pubescent or subsericeous 
with papillose hairs which are later deciduous; 
inflorescence densely pubescent with short 
ascending hairs; involucral scales purple at the 
tip, pubescent chiefly at the margin and base. 
Leaves narrowed to the acute or obtuse base. 
Leaves obtuse or rounded, mostly prominently 
serrate. 
Exposed portion of the principal involucral scales 
broadly ovate, obtuse or rounded and minutely 
apiculate; leaves narrowly oblong, glabrate 
beneath or minutely pubescent with short 
conic hairs. 
Exposed portion of the principal scales broadly 
lanceolate, sharply acute; leaves broadly ob¬ 
long to obovate, densely pubescent or sub- 
tomentose with crooked hairs beneath. 
Leaves acuminate, entire or obscurely serrate. 
Pappus white or pale straw-colored. 
Leaves glabrate beneath or minutely pubes¬ 
cent with short conic hairs. 
Leaves appressed-pubescent beneath with 
long papillose hairs. 
Pappus tawny. 
Middle and outer involucral scales sharply 
acute to subacuminate. 
29. V. echitifolia. 
30. V. herbacea. 
31. V. santacruzensis. 
32. V. ferruginea. 
33. V. crassifolia. 
34. V. membranacea. 
35. V. brasiliana. 
36. V. myriocephala. 
37. V. Lehmanni. 
38. V. mattogrossensis. 
