New Species of South American Plants 149 



Fertile Heads. — -Nearly twice the size of the sterile, the 

 involucres more broadly campanulate or hemispherical, the 

 scales obtuse, with "broad brown middle portions' and ciliate or 

 fimbriate margins. Akene nearly 2 mm. long, obovate, com- 

 pressed, with darker margins, the flat surfaces finely 3-striate, 

 the pappus tawny, 5 or 6 mm. long, the corollas very slender, 

 2 -toothed, a little shorter than the pappus. 



"A shrub, 6 feet, near Ingles-Ingles, 6,000 feet altitude, 

 Bolivia, August 16, 1902." (R. S. Williams, No. 1445.) 



Baccharis densifolia. 



Younger portions minutely strigose, otherwise glabrous. 

 Shrubby, the branches stout, the branchlets weak and some- 

 what drooping, densely leafy, reddish, finaly sulcate. Blades 

 2 to 4 cm. long, I to 2 cm. broad, oblong or oval, abruptly con- 

 tracted into a short petiole, lightly serrulate with erect acute 

 teeth, thickish, deep-green, lightly 3-nerved, the midrib im- 

 pressed above, sharply prominent like the nerves underneath. 

 Corymbs terminating the branchlets, small and few-flowered, 

 the heads slenderly peduncled, about 5 mm. long, hemispheri- 

 cal-campanulate, the involucre nearly equaling the disk, its 

 scales in about 5 series, ovate, obtuse, thick and rigid, appressed. 

 Only staminate flowers seen. Pappus scanty, wavy, extending 

 beyond the base of the corolla-lobes, about 3 mm. long, serrate, 

 at the summit semi-plumose. Corolla-tube cylindric, stout, 

 pilose, a little longer than the linear, acutish, recurved lobes, 

 the limb campanulate. Style obscurely branched. Receptacle 

 convex, nodose, naked. 



"A shrub 3 to 5 feet high in open lands, San Lorenzo Ridge, 

 6750 to 7500 feet. January 26." (Herbert Smith, Colombia, 

 No. 1997.) 



Appears to be the same as Triana's No. 128 1. 



Gnaphalitn multicapitatum. 



Thinly white-tomentose, the branches pilose with coarse, 

 soft, appressed white hairs, the upper leaf-surfaces minutely 

 puberulent. Diffusely branched, the branches ascending, \-ery 

 slender, about 10 cm. high, the intemodes about 2 cm. long. 

 Stem-leaves 8 to 20 mm. long, i or 2 mm. wide, oblanceolate, 

 acute, attached by a broad base. A single radical leaf is present, 

 which is 5 cm. long and proportionately broad. Heads light- 

 brown, densely glomerate and subsessile in the axils and at 

 the ends of the branches, the glomerules i to 1.5 cm. broad. 

 Involucres broadly ovoid before expandmg, 3 or 4 nim. long, 

 afterward more than twice as broad as long. Scales m two or 

 three series, sub-glabrous, lanceolate, acute, light-brown with 

 greenish middle portion, very thin. Involucre conca^-e, foveo- 



