PIGWORT FAMILY. 375 



widely spreading segments; lower lip with two densely bearded foils; anthers 

 slightly exserted, densely woolly; sterile filament bearded at apex. 



Among rocks of the North Coast Ranges: Hood's Peak; Mt. St. Helena. 

 May. The species is found in the high Sierra Nevada. 



2. P. corymbosus Benth. Stems 12 to 16 in. high, arising from de- 

 pressed shrubby evergreen mats, glabrous except the glandular-pubescent in- 

 florescence; leaves oblong, acute at both ends, i/> to 1*4 in. lo n g> denticulate or 

 entire, short-petioled; flowers in terminal corymbs; sepals linear or somewhat 

 narrowed above; corolla tubular, 1 in. long, scarlet, bilabiate; lower lip 

 abruptly spreading, 3-parted into oblong lobes; upper erect, 2-clef t ; filaments 

 all pubescent at the very base, the sterile one bearded its whole length on 

 one side. 



Rocky ledges and cliffs of the higher Coast Ranges: Mt. Hamilton; .Mt. 

 Diablo; Santa Cruz; and northward to Elk Mt. (Lake Co.) and Mt. Shasta. 

 .Inly- Aug. 



3. P. lemmonii Cray. Rush Beard-tongue. Of erect bushj habit, 2 

 to 4 ft. high, with vigorous herbaceous glaucous stems from a woody base, 

 rather remotely leaved; leaves light green, ovate or ovate-lanceolate, acute, 

 l'._. in. long or less, sparsely serrulate; sepals narrowly ovate, acuminate; 

 corolla purplish and dull yellow, small ( x /-> in. long), with short tube, cam- 

 panulate dilated throat and spreading lips; sterile filament strongly bearded 

 on one side of the curved apex; capsule 2 lines long. 



North Coast Range canons along streams : Vaca Mts. northerly to Siskiyou Co. 

 and northwestward. Also in the Sierra Nevada: Bear Valley (Placer Co.) 

 and northward. Aug. -Sept. 



4. P. centranthifolius Benth. Scarlet Bugler. Herbaceous, glaucous, 

 1 to 3 ft. high; leaves ovate to oblong-lanceolate, l 1 /^ to 2% in. long, with 

 subcordate clasping base; pedicels slender, y 2 in. long or less; sepals round- 

 ovate; corolla about 1 in. long, bright vermilion, tubular, hardly bilabiate, 

 the segments nearly equal, except that the two upper are united higher; sterile 

 filament naked; capsule 6 or 7 lines long, including the persistent portion 

 of the style. 



Coast Range cliffs: Vaca Mts. to Monterey and southward to Southern 

 California ; also on the Antioch sandhills. Apr. 



5. P. heterophyllus Lindl. Minutely puberulent; of bushy or tufted 

 habit, the stems erect or ascending, many from the base, 1 to l 1 /. ft. high; 

 leaves linear to lanceolate or broader, 1% in. long or less; sepals ovate, 

 acuminate; corolla rather abruptly ventricose-dilated above the narrowdy 

 tubular base, 1 to l x /4 in. long, blue or purple; upper lip short, more or less 

 reflexed, lower longer, spreading; sterile filament naked. 



Open places in the Coast Range hills, or even in stream beds, rather com- 

 mon. May-June. Mostly with reddish stems. Also distinguishable by its 

 sagittate or horseshoe-shaped and ciliate anthers which dehisce from the apex 

 only to the middle (subgenus Saccanthera), the preceding species with divar- 

 icate or divergent anther cells, which dehisce their whole length or nearly 

 (subgenus Eupentstemon). 



8. DIPLACUS Nutt. 



Evergreen glutinous shrubs with branching pubescence and opposite leaves 



which are revolute in the bud. Flowers red. orange or salmon-colored, solitary 



in the axils. Calyx tubular, 5-angled, 5-toothed. Corolla with funnelform 



tube and rather broad bilabiate limb. Stamens 4. Stigmas 2, closing to- 



