300 COMPOSITAE 
5. Chrysothamnus axillaris Keck. Inyo Rabbit-brush. Fig. 5507. 
Chrysoth illaris Keck, Aliso 4: 104. 1958. 
rounded shrub 6 dm. high, intri icotely branched, =~ branches reese white-barked, 
, “i 
sharply defined vertical ranks, spree: at maturity, broadly linear, sharply acute or apiculate, 
the costa glandular-thickened above, the small herbaceous tip ciliolate ; corolla about 5 mm. long, 
post lobes 1-1.2 mm. long; style- anpentages longer than the stigmatic portion; achenes sericeous ; 
pappus tawny, not very long or copious 
Desert slopes in granitic sand, Upper Sonoran Zone; eastern Inyo County, California, and adjacent Nevada. 
Type mena head of Lay Springs Watley peers County. Sept.—Oct 
ated to C. albidus (M. E. Seger Greene om which it differs in having t o few lea and these not 
at all poreney puncta and in the smaller involucres and florets. 2 ae pila Rag more Gatnwai related to 
C. greenet (A. Gray) Girton subsp. filifolius (Rydb.) Hall & a nt known only from eastern Nevada 
and eastward, weak has plane rather than tightly involute leave: 
6. Chrysothamnus depréssus Nutt. Long-flowered Rabbit-brush. Fig. 5508. 
Chrysothanenns see tok Nutt. Journ. Acad. ong 1E.4-2,171;.. 1847. 
rr. in Sit 61 
Bigelovia depressa i. pS Pree: Riau, rn e 643. 1873. 
ion eyes with many erect herbaceous stems from a much-branched, spreading, 
woody crown, 1-3 d igh, cinereous with a dense scabrid puberulence. Leaves oblanceolate or 
m 
maces in com nal cymes, 5- . 
phyllaries onal ele -seria , in 5 pr ly defied vertical ranks, lan minate, drawn to a soft 
o, strongly keeled, oe outer metas ceous and minutely scttesiand “the 3 inner Shee scarious, 
wi with es line margins; achenes glabrate; pappus s brownish white 
Dry canyons, Sonoran Zones; occasional on mountains of e n Mojave Desert, San Bernardino Coun 
California, east to southern Colora 'do and New Mexico. Type toate: ~ ey ieee as the type see tn - 
labelled; not “‘in the Sierra of Upper California,” as stated by Nuttall. Aug.—Oct 
7. Chrysothamnus gramineus H. M. Hall. Charleston Rabbit-brush. Fig. 5509. 
4 gramineus H. M. Hall, Muhlenbergia 2: 342. 1916. 
med from a branched roe caudex, 2.5-6 dm. high, light green, essentially 
gl one dicsodout the striate-angled stems si imple or erect-branched above. Leaves equally 
nes nar in: 
distributed, the larger ones wly linear-lanceolate, 3-7 cm g, ; ate, 
oa i , coriaceous ; incase mostly subsessile in small ee clusters, 4—5-flo ; 
pale ; involucre cylind 0-13 high; phyllaries 4-6-seriate, strongly ate, ob 
scurely pec ah ranked, stramineous, oblong, 1-nerved, abruptly otepiiate at the truncate or retuse, 
ciliolate apex; corolla abou As «i m. long; penile linear, ellipse about 6 mm. long; pappus 
sone stramineous, 8-9 m 
Rocky wooded slopes, 7, fig 9 pe Arid ae Zone; Inyo and Panam ntains, Inyo County, 
California: Chasiestan Mountains, Nevada. Type locality: head of Lee Canyon, Saco ovutatnn, July—Aug. 
8. Chrysothamnus parryi (A. Gray) Greene. Parry's Rabbit-brush. Fig. 5510. 
Eteonyrit re = — Proc. Acad. Phila. 1863: 66. 1863. 
1 
y, Proc. Amer. Acad. 
Cc. he-ysothomuns fewer Grccae. Hivtues S.213. 
Shrub up to 5 dm. high, the nu choy Sie — Lesage erect or spreading, densely clothed 
with a white, gray, or greenish yellow tomentum eafy. pa narrowly linear to sie 
1-8 cm. long, 0.5-8 mm. wide, —. ed: heads in ep ike ae racemes or caceaiicien! icles, 
te) = 
nn 
Mountainsides and flats, Arid Transition Zone; hater to New Mexico and California. July—Sep 
Variable in habit, pubescence, foliage, inflorescen Ba ae of head. The typical form, ranging from 
Wyoming and Cohanaile to eastern Nevada, has lin cag Bo 3-nerved leaves 1.5—3 mm. wide. Sh aahat flowered 
heads, and 10-15 er in oe — ranks. The 5 dalicniae subspecies occur in ou 
Ch: thamnus parryi p. bolanderi (A. Gray & Hall & Clem. Carnegie Inst. Wash. "Pu ae Ro 326: 199. 
1923:. € — fe heletaeche “Coy y, rc Amer. ‘kent : 354. 1868; sane Leder at Aa Gray, op. cit. 2: 641. 
1873; oe * landeri Kuntze, = Gen, Pl-1: 317. 1891; Chr ysotham nus bolanderi ig + eyes io 85234. 
1895; M ; nderi Greene, Leaflets Bot. Obs. 1: 81. 1904; C. hrysothinaans parr oy andert epson 
oo Calif.. 1033. 1925 .) Leaves 3-4 cm. long, 4-5 mm. wide, green, viscidlandulars heads us 
flowered, in short, sometimes branched racemes; involucre 9-10 mm. high, the phyllaries about 11-15, in pee: 
ranks. Known -— from the type locality, Mono Pass, Sierra Nevada, California, at 9,000—10, ay feet siehade: 
Arctic Alpine = 
us parryi subsp. latior Hall & Clem. Carnegie Inst. Wash. Publ. No. 326: 199. 1923. (Chry- 
siahelenet ey emia var. latior Aepaen, <p aa By, Calle. ee 1925, where i vera operly attributed to Hall.) Leaves 
oe or a agate tn ate, 2-4 cm. long, rved, grees scabroglandular heads 5—7-flowered, in 
orm panicles; involucre 12-15 mm teh bins a Ping 2-15, rather eating vertical ranks, nearly 
piety with attenuate, rather pungnet tips; e- cori 11-12 mm. cae ‘Con iferous slopes, Ar - a woe Zone; 
— 4 Sh paerig = Modoc Counties, California, at 3,000—4,500 feet altitude. Type locality: Wagon Creek, 
