558 SCROPHULARIACEJE. Penistemon. 



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

 nodes : panicle virgate and racemose, loose : peduncles longer than the subtending 

 floral leaves, cymosely 2 - 7-flowered : very short pedicels and calyx glandular : 

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



Long Valley, Mendocino Co. (Kellogg, 1869) ; Plumas Co. (Lemmon, 1874). Resembles P. 

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

 form of the corolla nearly that of the succeeding species. 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," externally somewhat glandular, not bearded, the 

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

 peduncles an inch or more long. 



-i Stems herbaceous, generally simple. 



++ Corolla at least an inch long, showy, never red; the short tube abruptly dilated 

 into an ample and wide ventricose throat ; the broad 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 raceme-like or spicate; 

 the peduncles and pedicels both short. 



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

 mostly lanceolate or the lowest oblong or spatulate, the upper closely sessile : panicle 

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

 ventricose-oblong or between campanulate and funnelforui 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. P. glabra, Pursh, Fl. ii. 738 ; Bot. Mag. 

 t. 1672. P. Erianthera, !Nutt. in Fraser Cat. P. speciosits, Dougl.; Lindl. Bot. 

 Eeg. t. 1720. P. Gordoni, Hook. Bot. Mag. t. 4319. 



In the Sierra Nevada from Nevada Co', northward to Oregon (mainly the western form with 

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

 eastward to and much beyond the Rocky Mountains. 



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

 foliate : panicle long and open, most of the peduncles and pedicels of the several- 

 flowered cymes being slender. 



9. P. Palmeri, Gray. Glaucous, 2 or 3 feet high : leaves ovate, or the lower 

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

 puberulent and a little glandular : corolla white 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 ( Watsmi) 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. R. Eep. iv. 119, &Bot. Mex. Bound. 

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



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

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



f + -n- Corolla two thirds or three fourths of an inch long, not scarlet-red ; the tube 

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

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



