New Species of South American Plants 163 



light-colored on the upper surface; conspicuous floccose buds 

 m the axils. Head solitary and terminal, sessile or sub-sessile, 

 2 cm. long, and about 3 cm. broad, as pressed, only the sterile 

 ones seen. Involucre broadly campanulate, tomentose or floc- 

 cose. Scales in about 6 series, the outer successively shorter 

 and broader, but all lanceolate, acuminate, pungent with brown 

 tips, 3 to 5-nerved, the innermost nearly equaling the disk. 

 Ray-corollas purple, thick and semi-rigid, the tube about 5 mm. 

 long, the oblong lower lip abruptly spreading, nearly i cm. long, 

 3-lobed, the lobes lance-oblong and obtuse, the inner lip of two 

 hyaline rigid segments, about one-third the length of the outer 

 lip and narrowly linear-lanceolate, acuminate and acute. Sta- 

 mens wanting in the ray-flowers, the style reaching to about 

 the middle of the limb, stout, glabrous, very shortly 2-lobed, the 

 lobes obtuse, erect and rigid. Tube of disk-corollas about r 

 cm. long, cylindric, the limb nearly as long, 2-lipped, the outer 

 lip divided to the base into three similar segments. Pappus in 

 a single series, sparse, strongly serrate, and at the summit 

 plumose, about equaling the corolla. Anthers about 7 mm. 

 long, including the basal setae, enclosing a style which does not 

 quite reach their summit. 



"A shrub with long, diffuse branches, (4 to 20 feet). Occas- 

 ional in open lands and thickets, from 4,500 feet down to sea- 

 level at Las Nubes, Onaca, Bonda, etc. Begins to flower 

 about December 25. It is scandent, sometimes attaining 30 

 feet." (Herbert H. Smith, Colombia, No. 661). Mr. Smith sends 

 another specimen under same number but with different locality 

 and date and with leaves shorter but twice as broad. Of this 

 he says "A broad-leaved form collected near Cacagualito, 1,500 

 feet, December 26. The leaves vary greatly in breadth, even 

 on the same plant." This specimen appears to be identical 

 with Haye's Panama, No. 338. 



Onoseris alata. 



More or less white-floccose throughout except the upper 

 leaf-surfaces, the purple branches sparingly so. Woody caudex 

 stout, erect, bearing a number of leaf-scars and at its crown 

 a rosette of leaves and peduncles. Petioles 7 to 15 cm. long, 



6 to 10 mm. wide, inclusive of the strong green wings, which 

 broaden downward and again contract toward the base. Blades 



7 to 15 cm. long, and equally broad at the cordate base, tri- 

 angulate and somewhat hastate, coarsely and distantly dentate, 

 the teeth very, small and salient, the sinuses shallowly concave, 

 the 5-7 principal veins originating together at the summit of 

 the petiole, the rest of the venation slender and very coarsely 

 reticulate, thin, white-floccose beneath, and light-green above. 



