558 SCROPHITLARIACE^. Pentstemon. 



sharply and sparsely denticulate (about an inch or less long), shorter than the inter- 

 nodes : paiiicle virgate and racemose, loose : peduncles longer tlian the subtending 

 floral leaves, cyniosely 2 - 7-flowered : very short pedicels and calyx glandulai- : 

 sterile filament strongly yellow-bearded on one side of the curved apex. 



Long Valley, Mendocino Co. {Kellogg, 1869) ; Plumas Co. {Lemmon, 1874). EesemHes P. 

 hrevijiorus in habit and foliage ; but the leaves proportionally broader and the flowers fewer ; the 

 form of the corolla nearly that of the succeeding sjiecies. Divisions of the calyx ovate-lanceolate 

 and gradually much acuminate, rather dry. Corolla in Dr. Kellogg's specimens "flesh-colored, 

 inclining to pink veins, with red-purple throat," e.xternally somewhat glandular, not bearded, the 

 general form campauulate, the lips about 2 lines long ; upper 2-lobed, the lower 3-lobed. Main 

 peduncles an inch or more long. 



Stems herbaceous, generally simiJle. 



■T+ Corolla at least an inch long, showy, never red; the short tnhe ahn/ptly dilated 

 into an amjde and wide ventricose throat ; the hroad and roundish lobes spreading : 

 plants glabrous : leaves lanceolate or ovate : panicle naked and elongated. 



= Leaves all entire and distinct at the base: panicle strict and racemedihe or spicate ; 

 the 2^eduncles and pedicels both sho7't. 



8. P. glaber, Pursh, Very smooth throughout, a foot or two high : leaves 

 mostly laniL'olatu or the lowe.st oblong or spatulate, the upper clo.sely sessile: panicle 

 very narrow, a span to a foot long : corolla bine or violet, or varying to purple, 

 ventricose-oblong or between campanulate and funnelform above the narrow tube : 

 anthers either glabrous or with some scattered short hairs ; the cells not dehiscent 

 quite to the tip, so that they never open widely : sterile filament either naked or a 

 little bearded on one side at the apex. — F. glabra, Pursh, Fl. ii. 738 ; Bot. Mag. 

 t. 1672. F. Erianthera, Nutt. in Fraser Cat. F. s2)eciosus. Dough; Lindl. Bot. 

 Pteg. t. 1720. F. Gordoni, Hook. Bot. Mag. t. 4319. 



In the Sierra Xevada from Nevada Co. northward to Oregon (mainly the western form with 

 narrow leaves and wholly naked sterile filament and anthers, the P. spcciosus of Douglas) ; thence 

 eastward to and much beyond the Rocky Mountaiiis. 



= = Leaves or some of them beset with rigid sharp teeth ; the upper connate-per- 

 foliate : panicle long and open, most of the 2^eduncles and })edicels of the several- 

 fov'cri'd rjpnes being slender. 



9. P. Palmeri, (^ray. Glaucous, 2 or 3 feet high : leaves ovate, or the loAver 

 oblong-lanceolate, the upper pairs broadly united : panicle and calyx commonly, 

 puberulent and a little glandular : corolla Avhite or cream-color partly suffused with 

 pink or rose, very abruptly dilated and broad-campanulate above the narrow short 

 tube, the limb an inch broad : sterile filament densely yellow-bearded above. — 

 Proc. 1. c. vii. 378, & viii. 291 ; Hook, f Bot. Mag. t. 6064. 



Native of Arizona, Utah, and Nevada, in the latter found on the foot-hills of Trinity Moun- 

 tains {Watson) so near the eastern line of California that it doubtless occurs within it. 



10. p. spectabilis, Thurber. Smooth throughout, inclined to be glaucous, 2 to 4 

 feet high : leaves ovate or oblong, the upper pairs united into a roundish or oblong 

 disk with acuminate ends : panicle often 2 feet long, loosely many-flowered : corolla 

 abruptly oblong-campanulate beyond the narrow tube, purple and the lobes often 

 blue : sterile filament naked. — Gray in Pacif E. Eep. iv. 119, & Bot. JNIex. Bound. 

 113 ; Hook. Bot. Mag. t. 5260. 



Dry plains and hills, Ventura Co. to San Diego (first collected by JV. A. JFallacc), thence to 

 the northern part of Arizona. One of the handsomest species. 



■*-¥ +-^ Corolla tti'o thirds or three fourths of an inch long, not scarlet-red; the tube 

 gradually and moderately enlarged above ; the roundish lobes short and sjyreading : 

 plants glabrous throughoxd and glaucous : leaves thickish, closely sessile. 



