268 COMPOSITAE 
3: hn aL slg. Shee (Brandg.) Keck. Fragile Chaetopappa. Fig. 5442. 
Pentachaeta fragilis Bra: n H. M. Hall, Univ. Calif. Pub. Bot. 6: 170. 
Chaetopappa fragilis Spe “Aliso 4: 102. 1958. 
slender, wiry, diffusely Pies glabrous except for the hirsutulous leaf-margins, the 
lon al 8-15 mm. lon 
branche 4-10 cm. long. Leaves spatulate to linear-oblanceolate, the bas 
wide, obtuse, the caulin 8 ide; volucre a high, the Sia ilaries 
subequal, ee as ee sea * agierire scarious-margined, lacerate-ciliate at apex; ray- 
flowers a 0, achenes sparsely pilose 20 very fragile, 
. the en ; papp 
filiform rivties ies por leery econ apex, not at all dilated at base, slightly shorter than the 
disk-corolla. 
assy, foothill slopes, Upper Sonoran Zone; southern Sierra Nevada and Greenhorn Mountains, Kern 
County ane ge Taner South Coast Range, San Luis Obispo County, California. Type locality: Havilah, Kern County. 
ay— 
4. Chaetopappa bellidifiora Shey Keck. White-rayed Chaetopappa. 
Fig. 5443, 
Pentachaeta bellidifilora Greene, a: Calif. spa 1: 86. 1885. 
Chaetopappa bellidiflora Keck, Aliso 4: 102. 
Stem 6-15 cm. = simple or with a erect branches, = ea or nearly so. Leaves narrowly 
linear, 8-35 mm. lon mm. wide; heads 1-1.7 cm. wide; involucre 3-4 mm. high, the sid 
laries "subequal, after aeepints oblong, short-acuminate or apiculate 5 a the truncate, icfoe. 
ciliate ADE, ere scaious-margined A cla us on ly; ray- —16, white or purplish- 
noes e ligule 5 mm. long; disk-flowers numero ee the ample trae not contracted at 
hee ERICH yairate, rarely gla ai ; pappus of 5 ee vely firm, scabrous 
bristles, sce dilated at pe shoei than the disk- cordila:  obtezatonally lac 
Open, dry, rocky slopes, Humid Transition Zone; Marin, San Mateo, and Prise ia Counties, California; 
also seporied from Monterey County. Type locality: Corte Madera, Marin County. March—May. 
5. Chaetopappa éxilis (A. Gray) Keck. Meager Chaetopappa. Fig. 5444. 
Aphantochaeta exilis A. cae Pacif. R. Rep. 4: 100. Pl. 11. Fig. A. 1857. 
oe ilis A. Gray, Proc. Amer. Acad. 8: 633. 1873. 
Pentachaeta exilis var. shen Gihawe Gray, Bot. — 1: 305. 1876. 
Pentachaeta aphantochaeta Greene, Bot. Gaz. 8: 256. 
Pentachaeta es ar. grayi Jepson, Man. FI. Pl. ody ae 1925. 
s K 
, Aliso 4: 103. 
m 318 on bine simple or with few erect branches, often purplish, sparsely pubescent. 
mm. long, ciliate-pubescent ba cle white- 
Villoa: Ratio the head involu , glabrous, often purplish, the phyllaries subequal, 
, broad, oblong, wea she: bristle- inge at the obtuse or t ate, mo 1 iate 
apex, moderately s a gined; pistillate flo 0-5, be a nd x Les rt filiform tube; disk- 
fl s 4-8, purplish, distinctly widened at throat, contracted a nes brown, moderately 
illous or rarely glabrous; pappus of 3-5 sl oe aig ee cine: os “dilated at base, or these 
Vv ro 
reduced to triangular scales, or often entirely wa 
Grassy slopes of valleys one foothills, Sonoran and ae Zones; from Placer and Mendocino Counties 
to Mariposa and Monterey Counties, California. Type locality: Napa Valley, Napa County. April-May 
5444. Chaetopappa exilis 5445. Chaetopappa alsinoides 
