Pentstemon. SCROPHULARIACE.E. 557 



++ Corolla red, long and narrow-tubular (an inch or more in length] ; the upper lip 

 erect; lower more or less spreading: inflorescence somewhat glandular, paniculate 

 or cymose : sterile filament bearded down one side. 



2. P. cordifolius, Benth. Scrambling over bushes by long sarmentose branches 

 to several feet in height, scabrous-pubemlent, very leafy : leaves somewhat cordate, 

 or some ovate with a truncate base, mostly acute and serrate or denticulate with 

 sharp salient teeth : the veins impressed on the upper and prominent on the lower 

 face : flowers in a somewhat leafy panicle : peduncles divaricate : calyx-lobes ovate- 

 lanceolate: corolla scarlet (an inch and a half long, the upper lip over half an 

 inch). 



Towards the coast, from Los Angeles to Santa Barbara. Sterile filament densely yellowish- 

 bearded from the apex for some distance downward. 



3. P. corymbosus, Benth. Lower than the foregoing, a foot or two high, soft- 

 pubescent or nearly glabrous, leafy to the tip : leaves oblong or oval, obtuse, acute 

 or acutish at base, slightly and sparsely denticulate (half an inch to nearly 2 inches 

 long), the veins disposed to be parallel : flowers few or rather numerous in a close 

 corymbiform terminal cyme : calyx-lobes linear-lanceolate : corolla scarlet (an inch 

 long). Torr. Bot. Wilkes Exp. 395. 



Shasta Co. to Santa Cruz ; first collected by Coulter (small branches or depauperate specimens), 

 but the station unknown. Nearly related to the preceding ; the sterile filament about equally 

 bearded above and sparsely so lower down. 



4. P. ternatus, Torr. Glabrous, the long virgate shoots glaucous, 2 to 4 feet 

 high : leaves linear-lanceolate, serrate or denticulate with sharp rigid teeth, all but 

 the uppermost in whorls of three : flowers in a more naked long and narrow virgate 

 panicle : calyx-lobes ovate or broadly lanceolate : corolla pale scarlet (an inch long, 

 the lobes or lips 3 lines long). Bot. Mex. Bound. 115. 



Mountains east of San Diego (Parry, Cleveland), and Fort Tejon, Xantus. 



++ ++ Corolla more or less yellow or tinged with purple (half to two thirds of an inch 

 long), the tube much shorter than the widely gaping lips, of which the upper is arch- 

 ing and merely notched, and the lower pendulous-recurved. 



5. P. breviflorus, Lindl. Glabrous, 3 to 6 feet high, with long and slender 

 flowering branches, leafy up to the panicle : leaves only opposite, lanceolate, some- 

 times ovate-lanceolate, denticulate : peduncles few - several-flowered, racemose- 

 panicled : calyx-lobes ovate-lanceolate and acuminate : corolla yellowish or flesh- 

 colored, striped within with pink, externally especially the upper lip beset with 

 some long and rather viscid beard-like hairs ; these sometimes on the calyx also : 

 sterile filament naked. Bot. Eeg. t. 1946. 



Dry hills and banks, throughout the foot-hills of the Sierra Nevada and the Coast Range. 



6. P. a ntirrhinoides, Benth. Very minutely puberulent or cinereous, or gla- 

 brous, diffusely much branched and spreading, 1 to 5 feet high, very leafy : leaves 

 thickish, spatulate-oblong or oval, entire (seldom half an inch long, not diminishing 

 upwards) : peduncles 1-flowered, terminating leafy paniculate branches and in the 

 upper axils : calyx-lobes roundish-ovate : corolla very broad for its length, pure 

 lemon-yellow : short sterile filament very densely bearded on one side. Hook. 

 Bot. Mag. t. 6157. P. Lobbii, of the gardens, Illust. Hort. 1862, t. 315. 



Southern part of the State, not rare about San Diego and San Pascual. Peculiar for its clear 

 yellow flowers. 



4-4- ++ ++ Corolla flesh-color or purplish (half an inch long] ; the tube and throat longer 



than the short spreading lips. 



7. P. Lemmoni, Gray. Two to 4 feet high, slender ; the virgate simple branches 

 rather leafy, and whole plant glabrous up to the pedicels : leaves ovate-lanceolate, 



