96 SCROPHULARIACEE. 
7 SCROPHULARIA, Tournefort. 
f. 8, Californica, Cham. Stems square: flowers dull purple, 3-4 lines long. 
8. CHELONE, Linnzus. 
1. ©. nemorosa, Dougl. Corolla violet-purple. In woods, Or., northward. 
9. PENTSTEMON, Mitchell 
§ 1. Anther-cells soon widely separating at base, united more or less completely at top, 
splitting open nearly or quite the whole length. 
° Anthers densely woolly, becoming shield-shaped after shedding pollen. ...0.....seeere: 1 
° * Anthers glabrous, splitting through the apex and spreading out: stems branching and 
shrubby, at least below: leaves leathery or parchment-like, mostly small, and short- 
petioled: filaments all hairy at base. 
Corolla scarlet, narrow-tubular, its upper lip erect and the lower more or less spreading: 
aterile filament bearded down one side. 
Leaves subcordate or ovate acutely toothed, 1 in. long or less.........02.--06 3 
. Leaves oblong or oval 4 to 2 in. long, often canescent.....ecseccsccecececsess O 
Leaves slender, rigid, acutely toothed, glaucous..........ees« #6 9 isis oceiieiwieis's. 22 4 
Corolla yellow or yellowish, purple-tinged, not an inch long, the casing limb longer than 
the tube (except No. 7): upper lip concave, lower recurved, 
Leaves lanceolate or oblong-lanceolate, denticulate..........s0cseccecsscosece O 
Leaves similar, yellowish green, remotely serrate. speeeee ols availa ee sis -olwielevjassieiate 6 
Leaves spatulate or oval, entire, 6 lines long or less............ecce cere eceeee 7 
°°* Anthers with spreading distinct cells splitting from base nearly to the top: corolla 
scarcely bilabiate, blue or purple. 
Leaves mostly oblong-lancevlate, glaucous............eececevecceecees winteaaseve’S 
**** Anthers splitting open from base through the united apex. 
Glaucous or pale and glabrous: leaves leathery or thick: corolla 9-12 lines long. 
Stems thick, 1 to 3 ft. high: leaves mostly ovate-lanceolate, entire.......e.eee. 9 
Taller: leaves thinner; upper pairs acuminate, united, acutely dentate........ 10 
Similar but leaves thicker: corolla crimson, 9 lines long, throat narrow....... 11 
Leaves 1} to 4 in. long, the upper often united: corolla cream-white, pinkish.. 12 
Corolla 8 lines long or Jess (more in 13): thyrsus viscid in 13, 14, 16, 18. 
Corolla somewhat bilabiate lower lip and sterile filament hairy... 18, 14,15, 16 
Corolla funnelform or tubular: sterile filament nearly or quitenaked...... 17, 18 
§ 2, Anthers sagittate or horse-shoe shaped, the cells opening by a continuous cleft 
around the apex which reaches about half way to the bases of the cells, these remain- 
ing closed and saccate, sometimes hairy but never woolly: corolla some shade of 
purple and blue, from rose purple to lavender (scarlet red in the last). 
® Soft-pubescent, viscid, stout: radical leaves 6-8 inches long... ...seeccccecccucceces 19 
