antirrhinum SCROPHULARIACE^ 505 



COLLINSIA 



in the axils of all but the lowest : calyx -lobes subulate, 1-2 lines long : cor- 

 olla -J-6 lines long, dull purplish, the lips nearly as long as the tube, the 

 prominent palate nearly closing the throat : filaments dilated at their apex : 

 style rather shorter than the capsule, thickened below, bent forward, indu- 

 rated and persistent: capsule about equalling the calyx, somewhat oblique, 

 the cells opening by 1 or 2 holes : seeds rugose-pitted. On bare hillsides, 

 Cow Creek Mountains Oregon to the Sierra Nevadas in California. 



A. Kingii Watson Bot. King 215 t. 21. Nearly glabrous throughout 

 or puberulent or even woolly at base: stem slender, 6-18 inches high, from 

 an annual root, simple or branched, often bearing prehensile branchlets 

 above : leaves from oblong to lanceolate or linear, attenuate to a short peti- 

 ole, 6-12 lines long, alternate or trlfe lower ones often opposite: pedicels 1-3 

 lines long: calyx-segments unequal, the posterior one oblong, obtuse, nearly 

 equalling the corolla, the rest oblong, acute, a half shorter: corolla dull 

 white, 3-4 lines long the upper lip 2- lobed: capsule globose, 1-2 lines in 

 diameter, somewhat oblique, terminated by the short straight and very 

 slender style: seeds deeply reticulated. Eastern Oregon to Nevada and 

 Utah. 



Tribe 8 Cheloneas Benth, in DC. Prodr. x. 188. Herbs with 

 at least the lower leaves opposite and normally compound inflorescence. 

 Corolla more or less bilabiate and tubular, not saccate or otherwise 

 produced at base anteriorly. Antheriferous stamens 4, and rudi- 

 ment of the fifth commonly present. Capsule dehiscent by valves. 



4 COLLINSIA Nutt. Journ. Acad. Phil, i, 190 t. 9. 1817. 



Low annual herbs with opposite or verticillate, leaves and blue 

 pink or variegated flowers verticillate or solitary on ebracteate 

 simple pedicels in the axils of the upper leaves. Calyx campan- 

 ulate, 5-cleft. Corolla irregular, gibbous or saccate on the upper 

 side: the tube short and the limb deeply bilabiate: the upper lip 

 2-cleft, the lobes erect or recurved ; lower lip larger, 3-lobed the 

 lateral lobes spreading or drooping, the middle one conduplicate 

 into a keel-like sack and enclosing the 4, declined stamens and 

 filiform style. Filaments filiform, the lower pair inserted higher 

 on the corolla than the others, the fifth represented by a gland at 

 the base of the corolla on the upper side. Anthers round- reniform 

 the 2 cells confluent into one at the apex. Ovules few in the 

 cells. Capsule ovate or globose, at first septicidal ; the valves 

 soon cleft in the middle. Seeds amphitropous and peltate, concave 

 ventrally. 



* Peduncles deflexed in fruit : seeds terete or nearly so, not margined. 



C. grandiflora Dougl. Lindl. Bot. Reg. t. 1107. Glabrate or minu- 

 tely pubescent : stem rather weak, 6-12 inches lontr sparingly branched from 

 the base : lower leaves orbicular to obovate or oblong, on slender petioles, 

 the blade 4-6 lines long, often coarselv toothed; upper ones spatulate or 

 oblong to lanceolate or linear, 10-18 lines long, sessile or short-petioled, 

 sparingly and obscurely dentate, usually 3 or 4 in a whorl: peduncles slen- 

 der, in fruit an inch or more long and reflexed, usually only 2 or 4, often 

 only one and opposite a branch : calyx-lobes lanceolate-subulate, about two 

 lines long, longer than the campanulate tube, very acute: corolla about 6 

 lines long, strongly declined, the throat a little longer than the lobes, sac- 

 cate, nearly white, as broad as long; upper lip light blue, middle lobe of 



