200 COMPOSITAE 
43. LAPHAMIA A. Gray, Smiths. Contr. 3°: 99. 1852. 
Low, suffruticose, mostly glandular perennials or subshrubs with scabrous-puberulent 
to villous pubescence, the stems many, simple or corymbosely branched above. Leaves 
hispidulous. Achenes flattened, when mature, wi face with appressed hirsute hairs, 
the margins with a thickened rib. us wanting or of 1 or 2 awn-like bristles. [Name 
in poe of I. A. Lapham, A ua, botanist. | 
s of about 18 species, natives of southwestern United States and of Mexico. Type species, Laphamia 
halimefone a Gray 
ii seem or granular- prctiehagincd. marae sckinh. 
eaf-blades about as broad as long, ovat ea 2 ee ee 
eaf-bla sits oe — than coat: linear, oblanceolate, or spatulate. 2. L. intr 
i villous a reading hairs; leaves thinnish 
Leaf-bla , more or less tapering to the cities villous hairs up to0.6mm. long. 3. L. villosa. 
des entir 
Leaf-blades a aiee toothed, mostly truncate at base; villous hairs up to 1-1.5 mm. es ; ; 
. L. inyoensis. 
1. Laphamia megalocéphala S. Wats. Large-headed Laphamia. Fig. 5324. 
Laphamia megalocephala S. Wats. Amer. Nat. 7: 30 
Monothrix megacephala Rydb. N. Amer. FI. 34: 20. aa ‘hecsteisthalid’ 
Aromatic —. 2-3.5(5) dm. high, forming rounded subshrubs, the stems many, arising 
from a suffrut ent base and st root, leafy with long internodes, simple or branched, the 
adams sally ‘spreading and arcuate, herbage granular to cabridulous fannie: hispidulous 
wth. _ s 3-10 mm. long including the short petiole the blade 2.5-6 mm. long. = 
nails ais ast eG uppermost leaves sometimes longer than wide), broadly ovate, sometim 
deltoid i - suborbicular, thickish, se or rare ely with 1 or 2t prt saree teeth; heads bright y salt: 
owered, termina to few on each stem; "involuere about 6 mm. high, the piHavies: linear 
or linear-elliptic ; me a 2.75-3.25 mm. long, epappose. 
crevices or # pit pope: rocks in canyons, Arid ie ransition Zone; desert r s of Mineral, Esmeralda, 
and Nye Counties, Nevada, to the White Mountains, Mono County, Califume, Type Satis Nevada. Col- 
lected oy Wheeler. a Sept. “Solas southern forms approach L. intricata in leaf-shape 
Zz. ees intricata Brandg. Narrow-leaved Laphamia. Fig. 5325. 
Brandg. Bot. Gaz. * 450. 1899. 
Mensthrix intricata Rydb. N. Amer. FI. 34: 20. 1914. 
Aromatic subshrub 1.5-3.5 dm. high from a stout woody root and short, suffrutescent, 
bcanching caudex, the striate stems ‘herbaceous, many, erect as are =e many branches, youn 
growth and protected stems sometimes lax, herbage densely hispidulous icobahiauk the hairs 
usually upward-curved, becoming scabrid in age, also with sessile glands. Lower leaves ae mm. 
e€ 
m 18) 
flowered, terminating the branches, several on older stems; involucres 3-3.5 mm. high, the phyi- 
nt linear- oblong ; achenes 2.75- 3 mm. lon ng, epappose 
ock crevices and canyon walls, Upper Sonoran and Arid heaped Joe desert ranges of western Nye 
ark Counties, Nevada, west to the Inyo Mountains and ranges su ounding Death Valley, pare County, 
Cahora! Type lesality: = Panrame and oa Sheep mountain, Neves. ps ‘Collected by Purpus. if se ept. The 
specimen collected at Sheep Mountain is designated as the type by Brandeg 
3. Laphamia villésa Blake. Hanaupah Laphamia. Fig. 5326. 
Laphamia villosa Blake, Proc. Biol. Soc. Wash. 45: 142. 1932. 
romatic perennial 1-2.5 dm. high fr woody root and branching suffrutescent base, the 
tems prea flexuous scending, striate, landular-dorted or the glands short-stalked, and 
us hairs. Leaves sh a 
Oo a mm 
elliptic, rounded to cuneate at base, entire or are y witha —_ lobe, thin, 3-nerved, pubescence 
as that of the stems; reads solitary or few on the stems, bright ye ellow or flowers turning reddish 
at the tips involucres about 5 m m. high, the phivflarics thin; achenes 2 to nearly 3 mm. long, 
pappos 
Shaded rock crevices, Arid Transition a known only from the type locality, Hanaupah Canyon, Panamint 
Mountains, Inyo County, California. Aug.—Sept 
