162 COMPOSITAE 
9. Layia glanduldsa (Hook.) Hook. & Arn. White Layia. Fig. 5245. 
pig ea bs pce peantetones Hook. FI. Bor. Amer. 1: 316. 1833. 
4 Arn. in Lindl. Nat. Syst. ed. 2. 443, 1836. 
Madar vogh ossa t angustifolia — Prod. 5: 694. 1836. 
Hoo 
Layia glandulosa . & Arn, Bot. Beechey Suppl. 358. 1838. 
Layia douglasti Hook. . yer loc. cit. 
Madaroglossa doug! Mike: . Rep. 2: 632 
Layia glandulos sa var. rosea A. Gray, ioe Cali : 368. 1876. 
ay reene, Pavone 2: 20 
Blepharipappus hispidus Greene, op cit, 6 
Blepharipappus oreganus Greene, loc 
Layia glandulosa var. hispida Jepson, “a Fl. Pi; Calif. 1101. 1925. 
mmonly co peoeely branched, 14 ae dm ape often anthocyanous. Leaves hispid, 
often densely ayer | a upper surface, the basal dentate lobed, the cauline mostly entire; in- 
volucre 6.5-9.5 mm. high, short- “hispid = usually niin. ~Handules- ligules wie os fading 
rose-purple, 6-15 se long, 5-9(-12) mm. wide; soso - ers 25-50 (10 00), the corolla 
long ; ray-achenes 3-4 m citlon ng ; disk- ai 3.5-6 mm. long ; pappus of 10(-12 ) glis stening, ee 
fattened, linear-attenuate paleae, plumose to aces aide with and de hairs outside and tang led 
oolly hairs side. 
Open sandy places, Sonoran and Transition Zones; central Washington and Idaho to Lower California and 
id oe extending to the coast in central and southern California. Type locality: “plains of the Columbia 
arc 
Layia glandulosa subsp. litea Keck, Madrofio 3:18. 1935. Ligules golden yellow. Sandy soils, iy 
Sonera “Zone: inner Beda Coast Ranges, San Heats County to a aig County, California, and locally 
the Santa Lucia Mou ns sta the mountains of Ventura County. Type locality: Bear Valley, north of "The 
Pinnacles, ay Siabits County: April-May 
-~ Layia pentachaéta A. Gray. Sierran Layia. Fig. 5246. 
A.G acif. R. Rep. 4: 108. 1857. 
Picpharippon pentachaetus Greene, Pittonia 2: 246. 1892. 
a pentachaeta var. hanseni Jepson, Madrofio 1: 201. 1929. 
ke branching above, 2-8 dm. high; herbage with acrid odor. Leaves hirsute and finely 
ginny, iting atifid to bipinnatifid ; involucre Sigdoe 6-9 mm. high, pustulate-hirsute and moder- 
ately glandular ; Baggies 5-18 ae ong, wide ; disk- dosets alle the corolla 3-5.5 mm. 
long ; ray-achenes 2.5- ve m. long; di si caehetien 2 ra 5-4(-4, 7) mm. long; pappus of 10-18 (rarely 
5 or less) Sliform ics | apsaeesinly plumose at base with fates pore bth a capillary hairs. 
assy past and slopes, Upper Sonoran Zone; Sierran foothills of California Placer County to Kern 
Gras: 
County, and i more robust form on the plains ‘of Tulare County. Type bea rity Knight’ s Ferry, Stanislaus 
County. Mar a4 Ma ay. 
Layia pentachaeta subsp. 4lbida Keck, Aliso 4: 107. 1958. Ligules name , Gees plains and foothills, 
hook Sonoran Zone; west side and head of the San poussts Valley and adjacent hills from western Fresno 
County to Kern Cou unty, California. Type locality: Polonio Pass, east of poe Newel San Luis Obispo Gans. 
vel —May. Readily separable from L. glandulosa by pe thoes odor, leaf-cut, etc. 
11. Layia gaillardioides (Hook. & Arn.) DC. Woodland Layia. Fig. 5247. 
Tridax (} bean spa Hook. & Arn. gos — 148. 1833. 
Layia gaillardioides DC, Prod. 7: 294. 
Blepharipappus porte te Greene, Amie 2: 246. 1892. 
Blepharipappus nemorosus Greene, Man, Bay Reg. 200. ong 
Layia nemorosa Jepson, Fl. W. Mid. Calif. ed. 2. 448. 
Layia gaillardioides var. nemorosa Jepson, Man. FI. Pl. yee 1102.) 1925: 
Stem simple or oo branched, 2-6 dm. high; herbage pungently odorous. Leaves hirsute to 
seat pustulate, somewhat viscid = iiienee- Glendale or both, remotely serrate or dentate to 
atifid (or bipleeatiod) ; involucre 5-8.5 mm. high, the bracts birt eps villous on oats a 
wandilae: ligules golden yellow ache ut to sake vellow with whiti Date 12 m ong, +- 
mm. wide; disk-flowers fiir — corolla 3.5-5.2 mm. long; ra sph 7 ong; 
disk-achenes 3.2-5 mm. long; pa of 17-21 slender, reddish brown to white bristles 14 mm. 
long, plumose to above middle Brn i capillary hai 
Open grassy places, Humid Transition and Upper Sonoran Zones; both Outer and Inner Coast Ranges from 
Humboldt and Colusa Counties to northern Monterey County, California. Type locality: not stated. April—June. 
Especially variable in flower-color, 
12. Layia fn So soexapay Hook. & Arn. Tall Layia. Fig. 5248. 
ne ‘sa hieractoides DC. Prod. 5: 6 18 
yia hieracioides Hook. & Arn. Bot. ier — 358. 1838. 
— hieracioides Greene, Pittonia 2: 246. 1892, 
Stem stout, pe $e erect, corymbosely branched t oward apex, 2-8(-10) dm. high; herbage 
pungently odorous. Leave s hispid, — — viscid, laciniate-dentate (or pinnatifid) ; heads 
inating ooh leafy dc in e 5-8 mm. high, ey and en ligules 
2-4 mm. long, 1.5-2.5 mm. wide; pa flowers 15-75, the corolla 2.3-3.3 mm, long; ray-achenes 
3-3.3 mm. long; ai nics 3-4 mm. lon g; pappus of 11-15 ht purplish to sisae’ bristles 
2-4 mm. long, plumose to middle ith straight capillary hairs. 
ood. lls, stly Humid T ti Zone; Berkeley Hills, Mount Diablo, Mount 
‘diactton, aint Some tee Meee: Ceca en cee. Zone Be - Apri-June. 
