DISTRIBUTION OF ADENOSTEGIA 421 
forms, however, vary in the pubescence of the spike from nearly 
glabrous to short-villous in their respective localities. The floral 
bracts are either lanceolate or toothed, generally the latter. In 
its extreme variations the San Francisco Bay form approaches 
A. mollis. The species is very closely related to A. canescens, 
but the lanceolate bracts, the soft villous pubescence and the 
scantily hairy filaments of the latter furnish a basis for their 
separation. 
Type Locatity: ‘Ad San Diego Californiae (Nuttall!).” 
DistriBuTION: Salt marshes along the Pacific Coast from 
Humboldt Bay in California to San Quintan, Lower California. 
SPECIMENS EXAMINED:—CALIFORNIA: Hookton, Humboldt 
Bay, Humboldt County, Tracy 3697; Samoa, Humboldt Bay, 
Tracy 1257; San Rafael, Marin County, Bolander 2403; Tiburon 
Peninsula, Marin County, Heller 5722; near San ‘Francisco, 
Vasey 1875; Shell Mound, Oakland, Alameda County, July, 1880, 
Rattan; Belmont, San Mateo County, Davy 4063; Cooley’s Land- 
ing, Palo Alto, September 14, 1901, Dudley; Ravenswood, Palo 
Alto, Philips & Stinchfield 269; Palo Alto, Baker 3557; same 
locality, 1901, Congdon; same locality, Elmer 3423; Alviso, Santa 
Clara County, July 18, Dudley; Milpitas, Santa Clara County, 
June, 1905, Smith; Playa del Rey, Los Angeles County, Abrams 
1714; San Pedro, Los Angeles County, Grant 3124; Coronado Sand 
Spit, San Diego County, Chandler 4003; South San Diego, Octo- 
ber 3, 1903, Brandegee; mouth of the Tia Juana River, Mearns 
3914; Mexican Boundary Monument 258, Mearns 3931. LOWER 
CALIFORNIA: San Quintan, May, 1899, Brandegee. 
21. ADENOSTEGIA CANESCENS (Gray) Greene 
Cordylanthus canescens Gray, Proc. Am. Acad. 7: 383. 1868; 
Wats. Bot. King’s Exped. 233, 460; Gray, Bot. Calif. 1 581; 
Gray, Syn. FI. 2!: 304. 
Cordylanthus Parryi Wats. in Parry, Am. Nat. 9: 346. 1875. 
Cordylanthus canescens var. Parryi Gray, Syn. Fl. 2!: 304. 1886. 
Adenostegia canescens Greene, Pittonia 2: 181. 1891; Kuntze, 
Rev. Gen. 2: 457; Rydberg, Bull. Torrey Club 40: 484. 
Adenostegia Parryi Greene, Pittonia 2: 181. 1891. 
Chloropyron canescens Heller, Muhlenbergia 3: 134. 1907- 
Chloropyron Parryi Heller, Muhlenbergia 3: 134- 1997- 
