286 SCROPHULARIACE^. (FIGWORT FAMILY.) 



the calyx-lobes : the corolla yellow, or white with purple or rose-color, often 

 much surpassing the calyx. 



* Corolla with lip rather obscurely saccate, and with conspicuous mostly erect lobes; 



the galea broad ish, obtuse. 



1. O. pallescens, Gray. Ciuereous-puberulent, not hairy: leaves 3 to 

 5-parted into linear lobes, or the lower entire: bracts similar with dilated 

 base, or the upper with shorter obscurely whitish or yellowish lobes : calyx 

 deeply 2 cleft, with broad lobes merely 2-cleft at apex: corolla yellowish, over 

 a half-inch long. — Am. Jour. Sci. ii. xxxiv. 339. From the mountains of 

 N. W. Wyoming to E. Oregon. 



* * Corolla with simply saccate lip inconspicuously or obsoletely 3-toothed, and 



moderately smaller ovate-triangular galea ; its small tip or mucro usually some- 

 what injiexed or uncinate. 

 ■*- Bracts strikingly different from the leaves, much dilated, entire or the lower 3 to 

 5-lobed, the summit of the middle lobe purple : corolla yellow. 



2. O, linearifolius, Benth. Strict, branching at summit, sparsely hir- 

 sute or hispid, especially the margins of the 3 to 5-lobed bracts : calyx half the 

 length of the corolla, its lobes with a pair of elongated subulate teeth : corolla 



1 inch long, narrow ; galea with small uncinate tip a little surpassing tlie lip. 

 — 0. tenuifoUus oi the Synopt. FL, in part. From the mountains of Mon- 

 tana to Oregon. 



+- +- Bracts herbaceous, not colored, less or little different from the leaves, all 

 3- {rarely 5-) cleji. 



3. O. luteus, Nutt. Pubescent and hirsute, sometimes viscid: stem strict, a 

 span to a foot high: leaves from linear to lanceolate, occasionally 3-cleft, 

 about equalling the flowers: corolla golden yellow, less than a half-inch long, 



2 or 3 times the length of the calyx; tip of galea obtuse and straight. — Plains, 

 from N. Minnesota to Colorado and westward. 



4 Oi Tolmiei, Hook. & Arn. Paberulent, a span or two high, loosely 

 branched : leaves narrowly lanceolate-linear, chiefly entire : bracts of the small 

 and short spikes httle dilated, often 3-cleft, the upper shorter than the flowers : 

 corolla bright yeDow, half-inch long, 3 or 4 times longer than the calyx; minute 

 tip of galea infiexed. — In the Wasatch Mountains of Utah and northward. 



14. CORDYLANTHUS, Nutt. 



Branching annuals, with alternate and narrow leaves, either entire or 3 to 

 5-parted, and mostly dull-colored flowers in small terminal heads or clusters, 

 or more scattered along the branches : the bracts and calyx not colored. 



* Calyx diphijUous : corolla 2-lipped at summit: flowers short-ped uncled or sub 



sessile. 

 1. C. ramosus, Xutt, A span or two high, diffusely much branched, 

 cinereous-puberulent : leaves filiform, all but the lower usually 3 to 7-parted : 

 flowers few in the small terminal heads or upper axils : corolla dull yellow, 

 barely a half-inch long. — Dry regions from Wyoming to W. Nevada and 

 Oregon, 



i 



