COMPOSITAE. Vor. III. 
WL : < ss : 
== 4. Baccharis Wrightii A. Gray. Wright’s 
Baccharis. Fig. 4387. 
Baccharis Wrightii A. Gray, Pl. Wright. Ig ror, 1852, 
yi Herbaceous from a thick woody base, much 
branched, glabrous, not glutinous, 1°-3° high, the 
branches straight, nearly erect, slender, striate. 
Leaves linear, sessile, r-nerved, entire, 3-12” long, 
3-1” wide; heads solitary at the ends of the 
branches, 5”-6” broad; involucre of the sterile 
heads hemispheric, about 3” high, that of the fertile 
ones somewhat campanulate and longer; bracts of 
both involucres lanceolate, acuminate, with scarious 
margins and a green back; pappus of the fertile 
flowers of several series of tawny or purplish capil- 
lary bristles. 
. Western Kansas and Colorado to Texas, Arizona and 
Chihuahua. April-July. 
x 
40. FILAGO Loefl.; L. Sp. Pl.927. 1753. 
{[Evax Gaertn. Fr. & Sem. 2: 393. pl. 165. f. 3. 1791.] 
White-woolly annual herbs, with alternate entire leaves, and small discoid clustered 
heads, usually subtended by leafy bracts. Bracts of the involucre few and scarious. Recep- 
tacle convex or elongated, chaffy, each chaffy scale subtending an achene. Outer flowers 
of the heads in several series, pistillate, fertile, their corollas filiform, minutly 2~-4-dentate. 
Central flowers few, perfect, mainly sterile, their corollas tubular, 4-5-toothed. Anthers 
sagittate at the base, the auricles acuminate. Achenes compressed or terete. Pappus none. 
[Latin filum, a thread.] 
About 12 species, natives of temperate or warm regions of both the New World and the Old. 
In addition to the following, 3 others occur in the western and southwestern United States. Type 
species: Filago pygmaea L. 
1. Filago prolifera (Nutt.) Britton. Filago. 
Fig. 4388. 
Evax prolifera Natt.; DC. Prodr. 5: 459. 1836. 
Diaperia prolifera Nutt. Trans. Am. Phil. Soc. (II) 7: 
338. 1841. 
Filago prolifera Britton, Mem. Torr. Club §: 329. 1894. 
Stem simple, or branched at the base, very leafy, 
2’-6’ high. Leaves spatulate, obtuse, sessile, ascend- 
ing or appressed, 4-8” long, 1-23” wide; heads in 
a sessile leafy-bracted cluster, usually subtended by 1 
or several slender, nearly leafless branches, each ter- 
minated by a similar cluster, or these again prolifer- 
ous; heads oblong or fusiform; receptacle convex; 
chaff of the central sterile flowers woolly-tipped, that 
of the fertile flowers scarious, mostly glabrous. 
In dry soil, Texas to western Kansas and South Da- NN 
kota, west to Colorado and New Mexico. April-July. 
41. GIFOLA Cass. Bull. Soc. Philom. 1819: 143. 1819. 
[Firaco L. Gen. Pl. Ed. 5. 1758. Not Sp. Pl. 927. 1753.] 
White-woolly herbs, closely resembling those of the preceding genus, with alternate, 
entire leaves, and small discoid glomerate heads, often subtended by leafy bracts, the clusters 
proliferous in our species. Involucre small, its bracts scarious, imbricated in several series, 
the outer usually tomentose. Receptacle subulate, cylindric or-obconic, chaffy, each chaffy 
scale near its base enclosing an achene. Outermost flowers pistillate, fertile, with filiform 
corollas and no pappus, or the pappus a few rudimentary bristles; inner flowers also pistillate 
and fertile, but with a pappus of capillary scabrous bristles; central,(uppermost) flowers few, 
perfect, their corollas tubular, their pappus capillary and scabrous. Anthers sagittate at the 
base. Achenes terete or slightly compressed. [Anagram of Filago.] 
About 10 species, natives of warm and temperate regions, the following typical. In addition to 
the following, 3 Californian species are probably to be referred to this genus. 
