522 



COMPOSITE. 



Open hills near the sea: Point Lobos; Point Keyes, etc. May. 

 Very similar in appearance to B. maritinia. 



11. B. macrantha Gray. Perennial, simple or nearly so, 7 to 18 

 in. high, the peduncles 4 to 8 in. long; leaves 2 to 6 in. long, 2 lines 

 wide, more or less 3-nerved and obtuse, hispidly ciliate, at least 

 toward the base, entire; head about ^ in. high and 1 to 1J in. broad; 

 involucre of about 12 hirsute-pubescent thickish herbaceous bracts; 

 rays 5 to 8 lines long; pappus none or of 1 to 4 bristles. 



Along the coast from Marin Co. (Point Keyes) to Mendocino Co. 

 (Ft. Bragg, etc.). Last of May-June. Specimens from Point 

 Reyes, Dwoy^ collected within the space of a few square feet show the 

 following variations as to the pappus: Plant no. 1. — Pappus none. 

 Plant no. 2. — Only one flower found with a single pappus bristle. 

 Plant no. 3. — Pappus none, rudimentary (reduced to a minute scale) 

 or with one good bristle. Plant no. 4. — Pappus of 2 or 3 or 4 

 (mostly 4) bristles. Other specimens show corresponding varia- 

 tions. 



39. MONOLOPIA DC. 



White-woolly annuals with alternate sessile entire or low- 

 denticulate leaves and large peduncled heads of golden yellow 

 dowers. Involucre hemispherical, its bracts united into a cup with 

 broad or triangular teeth, or distinct to the base. Receptacle conical, 

 naked. Rays with 3 or 4-toothed ligules and bearing at base and 

 opposite the ligule an oblong or roundish denticulate appendage. 

 Lobes of disk-corollas somewhat hairy. Achenes angular, black. 

 Pappus none. (Greek mono, single, and lopos, husk, on account of 

 the bracts of the involucre in one series.) 



Bracts united into a toothed cup 1. M. major. 



Bracts distinct to the base 2. M. graciltns. 



1. M. major DC. Stoutish, simple or branching, 8 to 20 in. high; 

 tomentum floccose and tardily deciduous; leaves mostly oblong- 

 lanceolate, low-denticulate, or commonly entire, 4 in. long or less; 

 bracts of the involucre united into a broadly campanulate cup (6 to 

 7 lines broad) with triangular teeth; rays 3 or 6 to 10 lines long. 



Petaluma and the lower Sacramento Valley, and southward 

 through the South Coast Ranges and the San Joaquin Valley to 

 Southern California. 



2. M. gracilens Gray. Slender, paniculately branched, 10 to 15 

 in. high; leaves narrowly oblong to linear-lnnceolate, low-denticulate 

 or entire; involucre 3 or 4 lines "broad, its bracts distinct to the base: 

 rays 2 or 3 lines long; achenes less than 1 line long. 



Santa Cruz Mountains. June. 



40. ERIOPHYLLUM Lag. 

 Annual or perennial herbs or suffruticose plants. Herbage white- 

 woolly, deciduous or floccose. Leaves alternate, divided or incised. 

 Involucre oblong to hemispherical, its bracts distinctly rigid and per- 

 manently erect. Receptacle flat or convex. Rays 4 to 13 or 15, 



