572 COMPOSITAE 
ered ; involucre 8-10 mm. long, the phyllaries eal 5; achenes 5-angled and grooved, the pappus- 
Sristics 15-25, white or sordid, plumose throughou 
Plains and jon mountain slopes, Upper Son and Transition Zones; southeastern British Columbia 
south to Modoc Cou California; Bg Moola ae pa Cclncalee. mene northern Abicsna, Type locality: ‘“‘near the 
Rocky Mountains,”’ “Collected by EP ames. June-Aug. 
A form differing from = name-bearing taxon ey having divergent branches and shorter stature has bee 
tg in the La ken Tahoe regi n Nevada and California ohed also at Sonora Pass, Tuolumne Caasity. and = 
H ats 5. ia The name Pislona Gewgns was applied to this entity by Greene in C. F. Baker, West Amer. PI. 
1]: 19, 190. 
meria tenuifolia var. myrioclada (D. C. Eaton) Rrongisint, Leaflets West Bot. 1950. 
(Stepha momerte myrioclada D. C. Eaton. Bot. King Expl. 5: as pl. 20, tsi AP TST 1s Aa ngs tenfolig myrio- 
clada Blake, Contr. U.S. Nat. Herb. 25: 623. 1925; Stephanomeria paucifior a var. myrtioclada Mun S. Calif, 
589, 601. 1935.) Plants 1-3 dm. high of densely crowded, slend ems arising from a woo nape pont ‘linear, 
filiform; involucre 5—6 mm. high; phyllaries 3-5; achenes as in oe poe Arid Transition ee Canadian Zones 
in the desert ranges of Nevada and Wyoming westward to the eastern fers arg of be Cascade Mounta Oregon 
south to the southern Sierra Nevada, California. Type locality: ‘‘Thousand Spring and ‘Groce Creek Wileré: [Elko 
County] Nevada; 6—6,500 feet elevation.” 
5. Stephanomeria paucifléra (Torr.) A. Nels. Few-flowered Stephanomeria or 
Wire Lettuce. Fig. 5988. 
Prenanthes (?) pauciflora Torr. Ann. Lyc. N.Y. 2: 210. 1827. 
ig nee peuciiane Bat Atl. Journ. 145. 1832. 
rythea 1: 224. 
Steph A. Nels. in Coult. & Nels s. New Man. Bot. Rocky Mts. 588. 1909. 
Stephanomeria — Eastw. Titles West. Bot. 2: 55. 1937 
Perennial, woody at the base, the several stems divaricately and intricately branched and 
more or fest rigid, ipieting rounded, glaucous and glabrous bushes 3-5 dm. high. Lower leaves 
runcinate-pinnatifid with narrow segments, the upper entire and spreading, with tufts of wool 
, or reduced ales, these also sometimes ; he olitary, terminal on the 
nd also scattered along the branchlets on short bracteate pedu , dt red; in- 
volucre 7-8(10) . high, Be Ss ; ri s grooved between the 5 ribs and rather incon- 
spicuously transversely r €; pappus what tawny, the bristles rather firm ie ee 
from the base for about ne Honrth their ek and long-plumose above, deciduous in g 
Sandy or ss goats desert slopes, Sonoran Zones; western Kern County and the “Mojave and fate iauite: 
Pb ag eastward through Nevada sa a > Kansas and south to northern Son and Texas. Type locality: 
“near the Rocky Mountains.” Collected by E. P. James. April—Oct. Desert Straw 
6. Stephanomeria cinérea (Blake) Blake. Gray Stephanomeria. Fig. 5989. 
Sena cinerea Blake, Proc. Biol. Soc. Wash. 35: 177. 1922. 
a eria rene var. tae eer ae Fl. Pl. sei 998. 1925. 
fr; iy A tshit Angee Aue: 42 100. ie 
vie renni ial, sie at base and divaricately much-branched above, densely cinereous-tomentose 
throughout, 3-4 dm. high. ae es of the midstem linear-lanceolate, acuminate, runcinate-toothed 
and ed to above; ds pagel at the tips of the branchlets or on sh peduncles, 
out 5-flowered ; phyllaries 5, 7-8 h, subtended by calyculate bractlets ; achenes 5-angled, 
whitish, finely ie daha oi rugulose when mature ; shee Mong ete out 14, somewhat tawny, his- 
pidulous at the extreme base, plumose above and deciduous in a r Hig 
Gravelly soil, a Sonoran Zone; Death Valley region in ten County, Slag steer and adjacent Nevada 
Ene Mg “Lancaster, Los Angeles County, California, in the Mojave Desert. Type locality: ‘‘Pahrump Valley, 
Nev: 0-915 meters.” Tone) ‘uly. 
F “Mich pinot th age western desert fore of S. paucifora and differing principally in the cinerous tomentum 
of the stems, 
Z. Steppe erin acne a Nutt. Stiff-branched Stephanomeria. Fig. 5990. 
Steph i Nutt. Tra gi sep Phil. Soc. If. 7: 428. 1841. 
Ptiloria paniculata me Pittonia = 1890. 
Stephanomeria oregonensis Gandoger, Pal Soc. Bot. Fr. 65: 53. 1918. 
Stephanomeria suksdorfii Gandoger, loc 
stems usually a rather octet B 5 tiie | eee above, 3-6 dm. high, gla- 
e som p 
us t thro 
leaves narrowly oblance wing eae’ or decticuiste: the otis narrowly linear, eae red ced and 
bract-like in the inflorescence; heads on short divergent bractlets th for narrow or sometimes 
more widely branching panicles, 5—7-flowered; phyllaries 5, ‘tine ear, 5-7 mm. long, Edbtesicled by 
caly i ight pink; achenes parey 5-angled, the intervals tuberculate; 
pappus-bristles 1 , united in groups of 2 or 3, white or more commonly tawny, rather short- 
plumose above and becoming di — near the base 
Dry hillsides and plains, especially in open sagebrush, Arid Transition and Upper Sonoran Zones; Wash- 
Soe east of a Cascade Mountains cad Idaho southward to eastern rene and northern California. Type 
“On the Rocky Mountain pinins, towards the Colorado.”” July—Aug 
8. gecdeaaces exigua Nutt. Small Stephanomeria. Fig. 5991. 
Stephanomeria exigua ns. Amer. ae Soc. IT. 7: 428. 1841. 
Ptiloria exigua Greene, on toa 132. 18 
Annual or rarely biennial, 1-5 a high, commonly fastigiately branched from the base in 
