254 PKOCEEDINGS OF THE AMERICAN ACADEMY 



longis) crebris vel creberrimis hispido- vel hirtello-ciliatis casterum 

 glabris vel parce hirtello-glandulosis ; corolla? tubo calycem parum 

 superante, lobis obovatis integris lin. 3 longis. — Var. rigid A : depressa ; 

 foliis aceroso-subulatis deraum recurvo-patentibus parce glanduloso-hir- 

 tellis. P. rigida, Bentb. in DC. — Var. condensata : pulvinato- 

 coespitosa ; foliis brevibus (lin. 2-3 longis) creberrime arrecto-imbrica- 

 tis. P. Hoodii, var. Gray, Enum. PI. Parry. (298) in Sill. Jour. — 

 Rocky Mountains, Colorado to Montana, Oregon, and high Sierra 

 Nevada. 



19. P. Douglasii, Hook. Caaspitoso-ramosissima, pubescens vel 

 glabella ; foliis rigidulis acerosis saspius patentibus minus crebris, mar- 

 ginibus aut nudis aut basi hirsutiusculo-ciliatis ; flore subsessili ; co- 

 rolla? (purpureae seu alba?) tubo calycem pi. m. superante, lobis obovatis 

 integris lin. 3 longis. — Hook. Fl. 2, p. 73, t. 158. — Var. diffusa: 

 rarnis procumbentibus foliisque laxioribus patentibus minus rigidis. — 

 Var. longifolia : ramis saspius erectis e rhizomate prostrato ; foliis 

 angustissime vel aceroso-linearibus lin. 5—8 longis minus fasciculatis. 

 P. Hoodii, Torr. Ann. Lye. 2, p. 220, & in Frern. Rep. P. Sibirica, 

 Hook. Kew Jour. Bot. 3, p. 290. — High plains and mountains, Mon- 

 tana, Colorado, and Utah, west to the Sierra Nevada and the Cascades; 

 the var. diffusa on the Pacific slopes from the Yosemite to lat. 49°, the 

 var. longifolia east of the Rocky Mountains and in Utah. This makes 

 nearly a transition to P. longifolia, Nutt. One of Nuttall's specimens 

 of this form, named by him P. andicola, exhibits, along with flowers 

 having the usual inequality in the stamens, one or two with stamens 

 perfectly equally inserted in the throat of the corolla ! 



* * Speciosce, basi tantum lignosaa nunc herbaceaa, multicipites vel 

 laxe casspitantes ; foliis vulgo longioribus linearibus lanceolatisve 

 raro subovatis laxis nee parumve fasciculatis ; floribus solitariis 

 vel subcymosis longius pedunculatis ! 



•i— LongistylcB.* 



++ Frigidce; foliis caulibusque laxe coespitantibus subflaccidis. 



* The character of the style — in this division elongated and frequently equal- 

 ling the tube of the corolla, in the other hardly exceeding or even equalling the 

 ovary and the stigmas — may be suspected to be dimorphic, as I have supposed 

 to be the case in P. subulata. But in this group there is no evidence of it ; and the 

 character is most convenient and useful in the arrangement of these otherwise 

 almost inextricable Western Phloxes. 



