410 FERRIS: TAXONOMY AND 
Mt. Pinos to the Cuyamaca Mountains, San Diego County; 
Arid Transition Zone. 
SPECIMENS EXAMINED:—CALIFORNIA: Upper San Antonio 
Cafion, Los Angeles County, Johnston 1662; Swartout Cafion, San 
Gabriel Mountains, San Bernardino County, September, 1904, 
G. R. Hall; Bear Valley, San Bernardino County, Abrams 2070; 
same locality, Davidson, 1894; same locality, June 29, 1897, 
Chandler; San Bernardino Mountains, Parish Brothers 992; San 
Jacinto Mountains, Riverside County, Hall 2619; Lockwood 
Valley; Ventura County, Hall 6644; Cuyamaca, San Diego 
County, 1884, Orcutt; same locality, October 15, 1894, Brandegee. 
10. ADENOSTEGIA FILIFOLIA (Nutt.) Abrams 
Cordylanthus filifolius Nutt.; Bentham in De Candolle, Prodr. 10: 
597. 1846; Wats. Bot. King’s Exped. 459 (in part); Gray, 
Bot. Calif. 1: 581 (in part); Gray, Syn. Fl. 2!: 303 (in part). 
Adenostegia rigida Greene, Pittonia 2: 180 (in part). 1891; Hall, 
Univ. Calif. Pub. Bot. 1: 114. 
Adenostegia filifolia Abrams, Fl. Los Angeles 372. 1904. 
Cordylanthus rigidus var. filifolius McBride, Contrib. Gray Herb. 
N.S. 49: 58. 1917. 
Slender, paniculately branching annual, 3-5 dm. high, the 
stems hirsute, the lower part puberulent; leaves linear or three- 
parted, puberulent with scattered, hirsute hairs; mature floral 
fourth the length of the bract, densely covered with long, spread- 
ing, hirsute hairs, tips of the divisions enlarged, calloused, emar- 
ginate, with a large gland in the emargination; calyx-leaves 
13-16 mm. long, short-hirsute, the upper 4—5-nerved, rounded at 
apex; corolla 12-15 mm. long, the tube shorter than the throat; 
stamens four, the anthers two-celled; capsule not sharply pointed; 
seeds slightly reticulate. [PLATE 10, FIG. 10.] 
TYPE LocaLity: “Ad San Diego (Nuttall!).’’ 
DIsTRIBUTION: Dry ridges and open places from Ventura 
County in California to the northern part of Lower California; 
Upper and Lower Sonoran Zones. 
SPECIMENS EXAMINED:—CAaLirorniA: San Felipe, Los Angeles 
County, Hayes 582; Glendora, Los Angeles County, 1892, Miss 
Palmer; Ramona, Los Angeles County, July, 1903, Brandegee; 
