SCROPHULARIACEAE (FIGWORT FAMILY) 449 



sterile filament flattened toward the apex, glabrous. — In the Uin&h moun- 

 tains of Wyoming, the Wasatch of Utah, and the Humboldt of Nevada. 



48. Pentstemon sepalulus A. Nels. Erect, slender, and paniculately slen-> 

 der branched above, 3-8 dm. high, very pale and glaucous throughout: leaves 

 lanceolate to linear, narrowed toward the base, entire: peduncles 1-2'flowered: 

 sepals remarkably small, ovate, mucronate: corolla violet-blue, 3-4' cm. long, 

 the expanded limb broad: anthers as in the preceding; sterile filament glabrous. 

 (P. azureus ambiguus Gray, Syn. PI. 2: 272: 1886; P. heterophyUv/s Wats. 

 Bot. King's Exp. 222. 1871.) — In the mountains of northwestern Colorado, 

 in adjacent Utah and Wyoming. 



6. CHIOKOPHILA Benth. 



A high-alpine dwarf perennial with entire leaves mostly in'a radical tii^t 

 and a dense spike of cream-colored flowers. Cajyx funnelform. Corolla 

 tubular, with shghtly dilated throat and bilabiate lithb; upper lip erect, barely 

 2-lobed; lower with convex densely bearded base forming a palate, 3-lobed. 

 Anther cells divaricate and confluent. 



1. Chionopbila Jamesii Benth. in DC. Prodri 10: 331. 1846. Glabrous or 

 nearly so, 8-15 cm. high: leaves thickish, spatulate or lanceolate, tapering into 

 a searious sheathing base; those on the scape-like flowering stems few, .paired 

 or alternate, linear: spike few to many-flowered, mostly secund, bracteate:, 

 corolla about 1 cm. long, pale, cream-color or greenish- white: sterile filament 

 small and short. — ^Alpine regions of the mountains of Colorado and southern 

 Wyoming. 



7. GRATIOLA L. Hedge Hyssop 



. Soft-herbaceous and diffusely branching plants, from a creeping base. 

 Pedicels soUtary and axillaryj a pair of bractlets close to the calyx and e'qual- 

 ing it. Corolla-tube cylindraceous, with subequal lips;- the upper entire or 

 lobed; the lower 3-cleft. Anther-bearing stamens 2; the anterior pair sterile- 

 rudimentary; anther cells distinct. 



1. Gratiola virginjana L. Sp. PI. 17. 1753. Viscid-puberulent or pubescisnt, 

 often nearly glabrous below, divergently Ijranclied, from the base, 1-3 dm. 

 high: leaves commonly glabrate, oblong-lanceolate, acute, entire to ^entiovjr 

 late-serrate, mostly narrow at base,: corolla 7—10 mm. long, wit^.yellpwish 

 tube and white limb, about twice as long as the calyx: anther-oells separaibd, 

 by a broad connective: capsiile ovoid. — Wet soil; across the continent. 



8. SYNTHYRIS Benth. , 



Perennial herbs with simple stems, mainly radical leaves, and rather small 

 purple, blue, or pink flowers in terminal spikes or racemes. Calyx 4-parted, 

 the segments oblong. Corolla oblong to short-campanulate, 4'Tcleft, more 

 Dr less irregular, rarely wanting. Stamens 2, exserted; filaments slender; 

 inther-cells parallel or somewhat divergent below, not confluent, at the apex.' 

 Style filiform, with small capitate stigma. Capsule compressed, obtuse or 

 Smarginate. — {Besseya Rydb.) 



Corolla wanting . . 1. S. wyomingensis. 



Corolla present. 

 Leaves more or less dividea. 

 Leaves pinnatifid . ' . . . . ^ . . , . . 2. S. pinnatifida. , 

 Leaves laciniately cleft to the middle or less . . . , . 3, S. Jaciniata. 

 Leayes undivided; 

 Flowers erect. 



Corolla violet or purple. 



' Leaves oval br subcordate . . : . ,. . u 4.,S. alpina. 



, Leaves oblong .5. S..pl4ntaginea. 



Corolla yellowish or white . . • ." , . . .6. S. Ritteriana. 

 Flowers reflexed '. , . :'' 7. S.^reflejia. 



