SCBOPHULARINE-ffil. 271 



* * Annuals, more or less slender and climbing. 



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

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

 and viscid: leaves thickish, 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, Null. 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-venlricose 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. 



