416 scbophulariacejE. 



19. ADENOSTEGIA Benth. 

 Branching annuals. Leaves alternate, narrow, either entire or 3 to 

 6-parted into linear divisions. Bracts and calyx never colored. 

 Flowers scattered along the branches or in terminal clusters or heads. 

 Calyx spathe-like, consisting of an anterior and a posterior leaf-like 

 division or the anterior division wanting. Corolla tuhular, enlarged 

 a little upwards, the lips of nearly equal length; lower lip obtusely 

 3-toothed. Stamens 4 or 2; anther-cells unequal, ciliate or minutely 

 bearded. Capsule flattened; seeds with a loose coat, pointed at one 

 end. (Greek aden, gland, and stege, covering, some species glandular.) 



Calyx diphyllous (j. e., with anterior and posterior leaf-like divisions); 

 stamens 4, filaments villous; bracts and floral leaves gland-tipped. 



Flowers crowded into terminal heads ; bracts hirsute-ciliate 



1. A. rigida. 

 Flowers 2 or 3 together at the ends of the branchlets, or only one. 

 Herbage pubescent ... . .2. A. pilosa. 



Herbage glabrous 3. A. PringlfA. 



Calyx monophyllous (i. e., with a single posterior leaf-like division); fila- 

 ments glabrous; bracts and floral leaves not gland-tipped. 



Leaves entire ; stamens 4 . . .4. A.maritima. 



Some of the leaves pinnatifld; stamens 2 . . . 5. A. mollis. 



1. A. rigida Benth. Erect, paniculately branched, 1 to 2 or 3 ft. 

 high; herbage finely puberulent, the 3-parted bracts hispid-ciliate; 

 lower leaves entire, upper 3 to 5-parted into linear divisions, their 

 tips dilated and retuse; flowers crowded in terminal heads; corolla 

 yellowish and purplish, over J in. long. 



Throughout Southern California; recorded as within our limits only 

 from Mt. Hamilton, Ch-eene. 



2. A. pilosa (Gray) Greene. Paniculately branched, 2 to 3 ft. 

 high, glandular, soft-pubescent; leaves narrowly linear, entire, some- 

 what fascicled below, i to ^ in. long, the upper and floral with 3 

 callous-glandular teeth at the dilated tip; flowers 2 or 3 together at 

 the end of the branchlets, or only 1; calyx-lobes exceeding the corolla; 

 corolla J in. long, dull white with some yellow markings; lower lip 

 rather broad below, scarcely shorter than the upper; stamens 4; 

 anthers 2-celled; filaments villous. — (Cordylanthus pilosus Gray.) 



Very common on dry hills throughout northern California: Los 

 Gatos; Moraga Valley; Napa Valley; Vaca Mountains and north- 

 ward. Sept. 



3. A. Pringlei (Gray) Greene. About IJ ft. high, diffusely and 

 subdivaricately branched, the branches slender and very wiry; plants 

 glabrous below, the inflorescence sparsely sprinkled with minute 

 glandular-hispid hairs; leaves filiform, 6 lines long, the floral some- 

 what callous-tipped; flowers few, solitary, terminating the stem and 

 branches; upper calyx-division narrow, bifid; corolla 5 to 6 lines 

 long, white or greenish white, marked with purple at the middle; 

 capsule oblique at summit, with a very distinct beak. 



Mt. St. Helena, 3,700 to 3,900 ft.; first collected in Lake Co., by 

 Pringle. The plant in anthesis is almost or quite leafless, and the 

 rigid wiry branches of a deep brown or mahogany color are quite 



