464 COMPOSITAE 
the acute tip. Achenes thick. Shrubs with alternate narrow leaves which may be reduced 
to mere scales, and with numerous heads in corymbifor racemose-paniculiform in- 
florescences. [Name from the Greek lepis, scale, and sparton, wie broom plant. 
genus of 2 species, native to Nevada, California, and northern Lower lifornia. Type species, Tetra- 
dymia squ pa A. Gray. 
Lepidospartum is anomalo os in the Senecioneae because of its pea b rhage x involucre, which i 
gestive of the Astereae. °The ied however, would be equally anomalous the As stereae; thes more Sealy 
resemble the styles of Peucephyliuen and to a lesser extent those of iuie and some species of Tetradymia. 
Clarification of the relationships of the genus aw faite Pirtver study. 
Heads narrow, saber igen, about 5-7-flowered; 
involucre mostly 8-10 mm. high; achenes densely long-hairy; 
leaves mostly 1. L. latisquamum. 
Heads broader, more campanulate about 9—13- (reputedly to 18-) has, & involucre mostly 5-8 mm. high; achenes 
ginbrond or nearly $0; ‘ees mostly reduced to mere short s 
2. L. squamatum. 
r: aaa on S. Wats. Nevada Broom-shrub. Fig. 5811. 
Lepidospartum latisquamum S, Wats. Proc. Amer. Acad. 25: 133. 1890. 
Lepidospartum striatum  Covillo, Proc. os re Wash. 7: 73. 1892. 
Shrub 6-25 dm. tall; tw igs prominently striate, the narrow ridges glabrous or early glabrate, 
the intervals thinly aa persiste pd tomentose. ro 
ter ess 
e narrowly linear or linear-filiform, sub- 
' Bock ide o glabrous or at first slightly tomentulose; h borne in 
short compact clusters at the s —e the numerous , Narrow, su lindric, abo 
red; involucre m high, the broad chartaceous bracts thinly tomentulose or 
subglabrate, tending to be Pale 2atpnogy ty regularly imbricate in pepe series, the outer 
te-acuminate tipped v a firm slender appendag long, the 
Soest sia broadly rounded at te tip; atylen i very gradually and ih sede: ac heney densely 
hai 
Dry ae hillsides and — washes at elevations of 4,500 to 7,000 feet, commonly associated with pinyon- 
juniper ‘woodland an at shape gebrush, Upper Sonoran and Arid Tr ncuice Zones; southern Nevada, ie nding to 
Inyo County, Califor ae ‘as ciel, to the eastern end of the Sa an Gabriel Mountains in San Bernardino 
County. Type Recalie: Soda Spring Cafion, Esmeralda County, Nevada.” May-Sept. 
2. Lepidospartum squamatum A. ERY California Broom-shrub. Fig. 5812. 
Linosyris squamata A. Gray, Proc. Amer. Acad. 8: 290. 1870 
Linosyris squamata var. breweri A 
squamai 
Tetradymia squamata A. Gray, op. cit. 9: 207. 1874. 
Tetradymia squamata var. brewere A. Ors: “aie Calif. 1: 408. 1876. 
Tetradymia squamata var. palmeri A. “ig y, loc. cit. 
Sapseoeportins sanuat m A, Gray r. Acad. 19: 
. plurice. chal shang ‘Sten 5 ne “Calif, een 1925. 
Lepidospartum sectianaiae var. obtec Oe son, op. cit. 1159. 
Lepidospartum squamatum v L. C. Wheeler, eiatdes 40: 322. 1938. 
rub 6-20 dm. ta ihe vers young t wigs tomentose, with oblanceolate, loosely tomentose, 
joa soon-deciduous leaves 5—20 mm &; principal ae — slightly or scarcely striate 
with reduced, thickened, calonke gl be 1-4 omentose in the axils. Heads 
campanulate or turbinate-campanulate, about 9-13- ( peuutetiy t  18-) flowered, racemosely dis- 
i merous branches, on scaly-bracted ee upper brat s of otal: tend 
- pass = paved ate of the involucre ; involucre ini | ae m. hig labrows or nearly 
the relatively n idealapes well imbricate, scarious-m d, pis een ars Sy ‘c ard the middle, 
often Slightly tke ‘all more or less acute ; style-branches paths: abruptly acute ; ya let glabrous 
sometimes some of ich: with some readily deciduous pubescence 
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5811. Lepidospartum latisquamum 5812. Lepidospartum squamatum 
