SCKOPHULARINE^:. 271 



* * Annuals, more or less slender and climbing. 



3. A. yagans, Gray. Diffusely branched, in age more or less climbing 

 by prehensile branchlets; sparsely setose-hirsute and more or less glandular 

 and viscid: leaves tbickish, oblong-ovate to lanceolate, entire: oblong 

 upper sepal equalling the tube of the corolla, the others linear and 

 shorter: corolla light purple, % in. long: seeds tuberculate. Very 

 common in ravines among the hills and mountains. June Oct. 



4. A. strictum (H. & A.), Gray. Erect, very slender, nearly simple, 

 2 ft. high, glabrous, climbing by the long filiform peduncles: lowest leaves 

 ovate-lanceolate; upper linear, the floral filiform, much shorter than the 

 tortile peduncles : corolla violet, % in. long, with hairy palate and gib- 

 bous base; capsule crustaceous, tipped with a straight style of its own 

 length. Mt. Tamalpais and far southward. June Aug. 



4. COLLINSIA, Nult. Annuals with opposite leaves, the lowest 

 pairs of which are commonly ternately divided, the others merely 

 toothed or entire. Flowers pedicellate, axillary and scattered, or in 

 whorls forming a raceme. Calyx campanulate, deeply cleft. Corolla 

 with very short proper tube, ventricose and gibbous or saccate throat, 

 and bilabiate usually somewhat personate limb; the 2 lobes of the upper 

 lip more or less recurved; middle lobe of the lower usually conduplicate, 

 enclosing the stamens; these 4 in 2 pairs with long filaments; a gland 

 at the base of the corolla on the upper side answering to the fifth 

 stamen. Capsule ovate or globose; the rather few seeds somewhat 

 peltate or meniscoid. 



* Corolla strongly bilabiate; the lowest lobe conduplicate. 

 i Flowers short-pedicelled, racemose at summit of stem. 



1. C. tinctoria, Hartw. Stoutish, 1 ft. high or less, viscid-hairy or 

 glabrate: leaves more or less toothed, oblong or lanceolate, the upper 

 sessile by a broad subcordate base: fl. nearly sessile; calyx-lobes linear 

 or oblong-linear, obtuse: corolla yellowish or nearly white, marked with 

 many purple lines and dots, or the purple prevailing; throat so strongly 

 saccale-ventr'icose that its axis is at right angles with tube and limb; 

 upper lip very short. Mt. Diablo and northward through the higher 

 hills; herbage imparting a stain. June. 



2. C. bicolor, Benth. More slender, often 2 ft. high, usually glabrous 

 or nearly so, seldom a little viscid and hairy: lowest leaves ternately 

 compound, those seen at flowering all oblong-lanceolate : pedicels shorter 

 than the acute calyx-lobes: lower lip of corolla purple, the upper little 

 shorter, paler or nearly white; saccate throat oblique to the tube. Very 

 common on open or shady hillsides, or, in an almost white-flowered 

 smaller form, on open sandy plains. April June. 



