160 COMPOSITAE 
4. Layia mtnzii Keck. Munz’s Layia. Fig. 5240. 
Layia munzti Keck, Madrofio 3: 16. 1935. 
Stem br anched from base upward, 2-3.5 dm. high. Leaves mostly glabrous except for scabrous 
or ciliate margin, upper sparsely villous and viscid, the basal and lower cauline pinnately lobed 
o parted; involucre 7-8.5 mm. high, the bracts glabrate to sparsely hispid : ligule es yellow tipped 
with white for cae-thicd to two-thirds their length, 9-12 mm. long, m. wide; disk-flowers 
5 fe) m. long; nes 2.8-3.5 mm. long; dis ‘ m. 
dense ely st rigose and with a row of long capillary hairs on the areola; pappus of 9-12 dirty white 
linear-lanceolate, attenuate paleae, usually with a spot o Fe ian Sicha at base, 2.3-3.4 mm. long 
- aline flats of heavy clay, Upper Sonoran Seda: west side n Je aquin Valley and adjacent Inner Coa 
0 
ast 
Ran a Merced Fprosst de to aie and San Luis Obispo fen ag ean rnia. Type locality: near Cholame, San 
Eas: Ohions County. March—-Apr 
M aioe jonesii A. Gray. Jones’s Layia. Fig. 5241. 
Layia jonesit A. Gra r. Acad. Re 2 1883. 
Callichroa jonesii Fable Pion 2 2: Feats 
Blepharipappus jonesii Gre 
Stem usually cory mosey oe up to 3.5 dm. high. Leaves glandular-puberulent and 
moderately het hi oe a e or less pustulate, the basal 7 lower cauline pineetet ly parted ; in- 
volucre 6-8 mm. high; ligu vies yellow, with short white tips, 6-9 mm. long, 4-5.5 mm. wide; disk- 
flowers $5-75(- 100), the corolla 3.1-5.2 mm. long; rayackienes 2.3-3.3 mm. lon ee sai achenes 
2.4-4 m , moderately ifn and with a row of capillary hairs on the areola; pappus of 
10-14 dirty gir ovate or oblong-ovate, imbricate, acuminate paleae 1-2 mm. lon 
Pastures and grassy slopes, Upper aie oa local along the coast of st Luis Obispo Cotinis, California. 
Type locality: near San Lui s Obispo. March—May 
6. ee platygléssa (Fisch. & Mey.) A. Gray. Tidy Tips. Fig. 5242. 
Callich plat Fisch. & Mey. Ind. Sem. Hort. ae ~ 31. 1835, 
Madarog Josie irtute Nutt. one —_ Phil. Soe. II. = 1841 
Layia platyglossa A. Gray, m. Amer. Acad. II. 4: 103. 
Blepharipappus phish adda see Pittonia 2: 246. 
Stems prostrate or decumbent, stout, succulent, corymbosely branched, 1-3 dm. long. Leav 
short- hirsute or silgea, the basal and lower cauline dentate to pinnatifid with salient, rotund, ent 
obes ; involucre 6-12 mm. high, the bract-tips rounded ; ligules 6-15-mm. | . wi ei 
disk-flowers 30-100, the corolla 46 mm. long ; ray-achenes 3-3.8 mm. tiag: disk-achenes 2.8-5 m 
long, strigose ; pappus of 18-32 white (or ener) seabed’ bristles 
rassy flats, Humid Transition Zone; along mediate coast from ten diing County to Point Concepcion 
and Santa "Cre Island, Santa Barbara Coote’ esanmes Type locality: Russian colony at Fort Ross, Sonoma 
County. May-June. 
Layia a subsp, campéstris Keck, Aliso 4: 106. 1958. (Madaroglossa elegans Nutt, Trans. Amer. 
Phil. = Z ai fet 1841; Layta elegans Torr. & Gray, Fl. N. Amer. 2: 394, 1843; L. platyglossa var. breviseta 
A. Gra r. Acad. 9: 193. 1874; Blepharipappus elegans Greene, Pittonia a: 246. 1892.) Stem erect, 
the ae Radars Sccahag to erect, slender, less succulent, to 5 dm. high, the herbage a grayer green; leaf. lobes 
narrower and longer; phyllary-tips not dilated; pappus as in the species or the lesithes densely plumose and inter- 
laced with woolly hairs within. Grassy plains and foothills, Upper Sonoran Zone; the widespread form of the 
species, 7, from the Bay Region, California, geri oe to central Lowe er California, occasional northward to 
Mendocino and Butte Counties; “abunda ant on be astal plain, infrequent in the Great Valley. Type locality: 
rc 
7. Layia septentrionalis Keck. Colusa Layia. Fig. 5243. 
Layia septentrionalis Keck, Aliso 4: 106. 1958. 
Stem often corymbosely branched, 1.5-4 dm. high. Leaves hirsute, glandular, the lower pin- 
nately toothed to parted; involucre BY. mm, high, densely cage and glandular ; ligules 
golden yellow, 8-16 mm. long, 7-9 mm. wide; disk-flow s 35-60, the corolla 5.5-8 mm. long; 
ray-achenes 3.8-5.2 mm. long; disk-achenes 4.5-7.5 m a ong ; pappus of 16-21 glis istening white 
—— oe appreciably flattened, plumose to above middle with capillary fais outside and tangled 
oolly hairs inside 
y slopes, in sandy or serpentine soils, Upper Sonoran Zone; Inner North Coast Ranges from 
Colese ‘Come to Sonus pena fa Calforame: Sutter iMareeiticl Buttes, Sutter County. Type locality: near 
Lakeport, Lake County. Apr 
8. Layia discoidea Keck. Rayless Layia. Fig. 5244. 
Layia discoidea Keck, Aliso 4: 106.. 1958. 
Stem a . or corymbosely few-branched, 5-12(-15) cm. high. Leaves white-hispid, all but 
—— of the tte Snoderiety black-glandular, the basal pinnately aie hype _ cauline few- 
oothed o Bs sly aig Bn involucr: i -campanulate, anthocyanous, 5- igh, moder- 
a se and rather d sely beats with "iteed black glands ; domes 10-25, “the corolla 3.5—4 
mm. long ; achenes ong ; pappus of (8-)11-15 lanceolate, acuminate, entire or deeply 
ao (and then often teaneatey, fulvous paleae 1(-1.5) mm. long, plumose with short pasiiiary 
rs. 
Serpentine slopes in chaparral es, Upper Sonoran Zone; rare endemic of southern San Benito County, 
California. — locality: New Idria. May 
