584 COMPOSITAE 
162. ANISOCOMA Torr. & Gray, Bost. Journ. Nat. Hist. 5: 111. 1845. 
Annual herbs with basal leaves toothed or pinnately parted and several monocephalous 
scapes. Involucre cylindric, the phyllaries with broad scarious margins, the outer short, 
broad and obtuse, the inner linear and acutish. Receptacle flat, the chaffy bracts linear- 
filiform and scarious. Ligules pale yellow. Achenes terete, linear-turbinate, 10—-15-nerved, 
the truncate apex with a narrow cup-like rim within whi ch is inserted 10-12 long, white, 
plumose pappus-bristles. [Name Greek, meaning unequal and a tuft of hair, in reference 
to the pappus 
A monotypic genus of the desert regions of southwestern United States. 
ie ES: acaulis Torr. & Gray. Anisocoma or Scale-bud. Fig. 6011. 
Torr. & Gray, Bost. Journ. — Hist. 5< 114, #. on figs. 7-11. 1845. 
esis hae runcinatus Kell. Peer: Calif. Acad. 3: 21. fig. 
winter annual with a rather a seated taproo ee in a rather dense basal rosette, 
pinnatifid, 2-7 cm. long, 3-10 mm. wide, the later Shee poeacadie and woolly-tomentose beneath, 
plants otherwise Rianeoe us ; scapes usually several to many, 5-25 cm. high, glabrous and bract tless : 
Se € Lan3.c mag, the phyllaries often margined with reddish brown, the outer short and 
peas the EE aetinont elongated and oblong-linear ; ligules conspicuous aed ale yellow 
Sandy desert washes, Sonoran Zones; Tehachapi Mountains ene east of the Sierra ati in ide County 
and ara Nevada south in the desert regions to no n Lower California and northwestern Arizona. Type 
locality: not indicated. April—July. 
163. ATRICHOSERIS A. Gray, Syn. Fl. N. Amer. 1°: 410. 1884. 
Annual herb with a branched stem, glabrous throughout. Leaves in a basal tuft, cuneate 
or obovate, spinulose-denticulate. Stem-leaves reduced to small foliaceous bracts. Stems 
solitary, slender-branched above. Heads in a cymose panicle on slender peduncles. Phyl- 
laries scarious, lanceolate, about 15, with a few small ones at base. Receptacle scrobiculate. 
Ligules white or pinkish. Achenes oblong, corky-ribbed, without pappus. [Name Greek, 
meaning without hair, and seris, a name applied to chicory. ] 
A monotypic genus. 
1. Atrichoseris platyphylla A. ay. Tobacco-weed or Parachute Plant. 
Fig. 6012. 
tncotheks: We — Proc. Amer. Acad. - 214. 1874. 
ray, Syn. Fl. N. Amer. 17: 410. 1884. 
sail a pasteee: and somewhat glaucous, the stems solitary, erect, cymosely 
branched above , 3-7 dm. high. Leaves basal, wide-spreading and usually flat on the ground, ob- 
long-obovate or oblong- set be olate, 3-10 cm. long, 2-5 cm. wide, narrowed at base A a usually 
u 
a 
about 6 mm. long, ovate-lanceolate, with broad scarious margins; corollas white or pinkish, the 
— te 10-15 mm. long, prominently toothed at apex; achenes white or stramineous, 4 mm. 
sy 
my oe ashes, Lower Sonoran Zone; Mojave and Colorado Deserts of California. Inyo County to 
Im Sucre oer y, California. and crear eee evee, east to southwestern Utah and western Arizona. Type locality: 
near Fort Mohave, Arizona. Collected by Coope Feb. —May. : 
164. TRAGOPOGON [Tourn.] L. Sp. Pl. 789. 1753. 
labrous biennial or “shaded perennial herbs with ions taproots. Leaves entire, grass- 
stems 
like, with conspicuous nerves, clasping at base. Peduncles terminating the long, 
stout, often thickened and fistulous ; ptoliacce | in 1 series. Heads yellow- or purple-flow- 
early morning, usually closed by n Receptacles without bracts 
Achenes fusiform, long-beaked or the outer beakless, 5—10-rib . Pappus a St row of 
long, plumo: se bristles cuneate at the base. { Name Greek, meaning goat’s- 
enus of about 35 species, all natives of the Old World. Type species, Tragopogon packet Er 
hie scarcely inflated even in trait; outer Higules equaling the phyllaries. 1. T. pratensis. 
phy 11 
Ligules uae to deep Siclet: urple; atly 3 8-9. 2. T. por is age 
Ligules pale yellow; phyllaries wea 13; 3. T. dub 
i = eeeere Peaioeie te Meadow Salsify. Fig. 6013. 
Tragop pratensis L. Sp. Pl. 789. 17 
Stems from a hpi usually ani rather slender, 4-10 dm. high. Leaves keeled from 
the more or less clasping base to a long-acuminate, usually recurved tip, the margins concave and 
