OF ARTS AND SCIENCES ! JUNE 14, 1870. 255 



20. P. Sibirica, L. Bi-quadripollicaris, piloso-pubescens ; foliis 

 angusto-linearibus margine srepius villosulis ; pedunculis nudis uniflo- 

 ris ; corolla? tubo lobis suis obcordatis retusisve calycique a?quilongo 

 vel paullo longiore ; ovulis in loculis binis. (Gmel. Fl. Sib. 4, t. 46, 

 f. 2.) Trautv. Imag. Fl. Russ. t. 24. — Kotzebue's Sound and E. 

 Siberia. 



++ ++ Temperatxz ; foliis cum caulibus basi sufFruticosis erectis vel 

 adsurgentibus rigidulis: corolla alba seu rosea, tubo lobos caly- 

 cis angusto-subulatos superante. 



a. StenophyllcB : calycis tubus ad basim usque membranulis intercos- 

 talibus scariosis mox replicatis saepius angulatus. 



21. P. linearifolia. Glaberrima vel superne nunc hirtello-pu- 

 bens, spithamaea ad pedalem, corymboso-floribunda ; foliis angustissime 

 linearibus (1 — 2-pollicaribus) ; calycis tubo e basi lata inter costas exi- 

 mie membranaceo-angulata quasi pyramidato, dentibus aceroso-subula- 

 tis ; corollas tubo calycem paullo excedente, lobis obovato-cuneatis inte- 

 gris raro retusis ; ovulis in loculis binis. — P. speciosa var. linearifolia, 

 Hook. Kew Jour. Bot. 3, p. 289, pro parte. P. speciosa, Lindl. Bot. 

 Reg. t. 1351 ; Benth. in DC, non Pursb. — Interior plains of the Co- 

 lumbia River and its tributaries, the Kooskooskie, Clearwater, &c, 

 Douglas, Spalding, Geyer, Burke, Lyall. • 



22. P. longifolia, Nutt. Jour. Acad. Philad. 7, p. 41. Glabra vel 

 pubescens, circa spithamaea ; foliis angustissime vel angusto-linearibus 

 (1 -2^-pollicaribus) quandoque lanceolatis ; corollae lobis obovato- seu 

 oblongo-cuneatis integris retusisve ; ovulis in loculis fere semper solita- 

 riis. — P. speciosa, p. Hook. Fl. 2, p. 72, &c. P. humilis, Dougl. in 

 Benth. 1. c. — a small form, with shorter peduncles, sometimes appar- 

 ently passing into P. Douglasii, var. longifolia. — Var. Stansburyi : 

 validior ; pube ramorum calycisque pi. m. glandulosa seu viscosa, foliis 

 vulgo latioribus; corollae tubo calyce saepius duplo longiore, lobis apice 

 nunc emarginatis nunc erosis ; loculis 1-2 ovarii quandoque biovu- 

 latis. P. speciosa, var. ? Stansburyi, Torr. Bot. Mex. Bound, p. 145. 

 — Forma brevifolia, nana ; foliis nunc angusto- nunc oblongo-lan- 

 ceolatis semipollicaribus. ■ — Rocky Mountains to the Cascades and 

 Sierra Nevada, and from Washington Territory to Nevada and Utah. 

 The var. Stansburyi and its short-leaved form chiefly in the southern 

 districts, and extending into New Mexico and Arizona. This also has 

 usually uniovulate cells, but with one or two (rarely perhaps all three) 

 cells sometimes 2-ovuled. 



