DISTRIBUTION OF ADENOSTEGIA 411 
Hobart, Los Angeles County, Braunton 513; Newhall, October 
14, 1882, Pringle; Victorville, San Bernardino County, Parish 
10523; Lytle Creek Cafion, San Bernardino County, Abrams 
2745; same locality, Hall 1423; San Jacinto Mountains, Riverside 
County, Hall 2621; San Diego, San Diego County, August, 1916, 
McMurphy; same locality, September, 1903, Brandegee; same lo- 
cality, August, 1906, Katharine Brandegee; same locality, July, 
1895, Stokes; Point Loma, San Diego County, Hall 8325; Viejas 
Grade to Descanso, San Diego County, July, 1906, Katharine 
Brandegee; between La Mesa and Jamul, San Diego County, 
Abrams 5006; Del Mar, San Diego County, August 5, 1906, 
Katharine Brandegee; Witch Creek, San Diego County, Anderson 
248; Tecate River, San Diego County, Shoenfeldt 3741; same lo- 
cality, Mearns 3797; Laguna Mountains, Imperial County, Mc- 
Gregor 97; Southwestern Colorado Desert, Imperial County, June, 
1889, Orcutt. ae 
11. ADENOSTEGIA RIGIDA Benth. 
Adenostegia rigida Benth. in Lindley, Nat. Syst. ed. 2. 445. 1836; 
Bentham in De Candolle, Prodr. 10: 537; Greene, Pittonia 2: 
180 (in part); Wettstein in Engler & Prantl, Nat. Pflan- 
zenfam. 42°: 98; Jepson, Fl. W. Mid. Calif. 416. 
Cordylanthus filifolius Gray, Bot. Mex. Bound. 2: 120. 1859; 
Gray, Proc. Am. Acad. 7: 382. Not Nuttall. 
Cordylanthus rigidus Jepson, Fl. W. Mid. Calif. ed. 2. 387. I9II. 
Diffusely branching annual, 3-6 dm. high; stems often reddish, 
puberulent with scattered, hirsute hairs, glabrous with age; leaves 
12-15 mm. long, linear-filiform, occasionally three-parted, canes- 
cent-puberulent; mature heads compact, six- to twelve- rarely 
fifteen-flowered; floral bracts 12-20 mm. long, sparsely hispid, 
the ciliate margins interspersed with soft hairs, three-parted into 
linear divisions, the apex calloused, enlarged and truncate or 
slightly emarginate, the veins prominent; calyx-leaves 18-21 mm. 
long, sparsely hispid, five-nerved, the lower broad, I mm. longer 
than the upper; corolla 16-19 mm. long, the tube equalling or 
slightly shorter than the throat; stamens four, the anthers two- 
celled; capsule not sharply pointed; seeds slightly reticulate. 
[PLATE 10, FIG. IT.] 
Type Locauity: “Herba Novo-californica.” The exact type 
locality of this species is doubtful, but of various specimens sent 
to the Kew Herbarium by Dr. Abrams in 1903, one from Naci- 
