PHLOX FAMILY 413 



12. Phlox canescens Torr. & Gray. Gray or Woolly Phlox. Fig. 3922. 



Phlox canescens Torr. & Gray, Pacific R. Rep. 2: 122. pt. 6. 1857. 



Phlox Douglasii var. canescens H. L. Mason ex Jepson, Man. Fl. PI. Calif. 786. 1925. 



Phlox Hoodii subsp. canescens Wherry, Proc. Acad. Phila. 90: 139. 1938. 



Phlox Hoodii var. canescens M. E. Peck, Man. PI. Oregon 572. 1941. 



Plant pulvinate, 5-20 cm. broad, the leafy branches woolly-villous. Leaves 5-11 mm. long, 

 the upper ascending, the lower often arcuate-spreading, subulate, with a prominent midrib and 

 thickened margins, narrowed to the pungent apex, glabrate above, more or less woolly toward 

 the base, glabrate above; flowers usually solitary at the ends of the branchlets, sessile or on 

 short stout pedicels ; calyx 5-9 mm. long, loosely woolly in the central portion especially on the 

 margins of the lobes, the subulate and pungent lobes longer than the tube ; corolla bright lilac to 

 white, tube 10-13 mm. long, the broadly obovate lobes 5-6 mm. long ; style 2,-7 mm. long. 



Drv rocky or sandy ground. Arid Transition and Upper Sonoran Zones; eastern base of the Cascades, from 

 Klickitat County, Washington, to Modoc County, California, east to Montana Wyoming, northern Nevada, and 

 Utah. Type locality: "On the Cedar Mountains, south of the Great Salt Lake. April-July. 



13. Phlox lanata Piper. Woolly Phlox. Fig. 3923. 



Phlox lanata Piper, Bull. Torrey Club 29: 643. 1902. 



Low densely tufted with a short woody caudex, the seasonal branches about 2 cm. long. 

 Leaves subulate, erect and more or less appressed, or sometimes recurved-spreading, cuspidate, 

 distinctly bisulcate, about 5 mm. long, glabrous above, conspicuously white-woolly below ; flowers 

 solitary at the ends of the branches ; calyx white-woolly except near the tip, 6-7 mm. long, the 

 lobes cuspidate; corolla-tube 10-18 mm. long, pubescent within near the base; lobes suborbicular, 

 purple or white, about 4 mm. long; style about 2.5 mm. long. 



Mostly on rocky ridges. Upper Sonoran and Arid Transition Zones; Crook County, Oregon, south to 

 northern Nevada and east to southern Idaho. Type locality: Steen Mountains, 4,000-foot altitude, Oregon. 

 April-July. 



14. Phlox bryoides Nutt. Moss Phlox. Fig. 3924. 



Phlox bryoides Nutt. Journ. Acad. Phila. II. 1: 153. 184&. 



Plants very compactly pulvinate, 5-10 cm. broad. Leaves closely imbricated, completely 

 concealing the' inter nodes and making the stems appear 4-sided, oblong, 3-5 mm, long, very 

 wooUy-tomentose toward the base, upper side concave, the lower 3-ribbed by the shiny-white 

 midrib and the prominently thickened margins ; flowers solitary, sessile ; calyx about 5 mm. long ; 

 corolla white or lilac, the tube 7-10 mm. long, the lobes oblong-ovate, 3-4 mm. long; style 4 

 mm. long. 



Dry slopes and plains, usually in rocky or stony ground. Upper Sonoran and Arid Transition Zones; 

 eastern Lake County, Oregon, south to Nevada and to Wyoming and southern Utah. Type locality: Un the 

 dividing ridge of the Rocky Mountains." May. 



15. Phlox gracilis (Hook.) Greene. Slender Phlox. Fig. 3925. 



Cilia gracilis Hook. Bot. Mag. 56: pi. 2924. 1829. 

 Collomia gracilis Dougl. ex Hook. loc. cit., as a synonym. 

 Phlox gracilis Greene, Pittonia 1: 141. 1887. 

 Microsteris gracilis Greene, op. cit. 3: 300. 1898. 

 Microstcris glabella Greene, op. cit. 301. 

 Microsteris stricta Greene, op. cit. 302. 



Annual with usually erect stems 1-2 dm. high, generally simple below and sparsely to freely 

 branching above, glandular-pubescent above, glabrous or sparsely tomentose toward the base. 

 Lower leaves opposite, the seed-leaves often hirsute, persistent, suborbicular, the lowest three 

 leaves often oblong or obovate, the upper linear, 2-4 cm. long, obtuse or acutish, glandular- 

 pubescent to glabrate ; inflorescence cymosely branched, very glandular ; calyx 5-6 mm. long, the 

 lobes about equaling the tube, the membranous sinus of the tube ruptured early by the expanding 

 capsule; corolla 9-12 mm. long, with pink or purplish lobes and usually yellow tube. 



Moist, grassy slopes and bottom-lands, Upper Sonoran and Transition Zones; British Columbia south on 

 both sides of the Cascades in Washington and Oregon, and mainly west of the Sierra Nevada to southern 

 California. Type locality: garden plant grown from collections made by Douglas "on light soils, on the banks 

 of the Spoken river [Washington], and on high grounds near Flathead river [Idaho], m North- West America. 

 May-Aug. 



Phlox gracilis subsp. humilis (Greene) H. L. Mason. {Collomia gracilis var. humilior Hook. Fl. Bor. 

 Amer. 2: 76. 1840; C. humilis Dougl. ex Hook. loc. cit., as a synonym; C. micrantha Kell. Proc. Cahf. Acid. 

 3: 18. 1863; Microsteris humilis Greene, Pittonia 3: 301. 1898; Cilia microsteris Piper in Piper & Beattie, Fl. 

 Palouse Reg. 142. 1901.) Low and diffusely branched from the base, the plant usually as broad as high, more 

 or less canescent with a short glandular pubescence; corolla 5-6 mm. long, the limb purplish, 2 mm. or less 

 in width, tube nearly white. Mainly east of the Cascades and the Sierra Nevada, British Columbia to the San 

 Bernardino Mountains, California, east to Montana and Utah and northern Arizona. Type locality: not given. 



5. LINAnTHUS Benth. Bot. Reg. 19: under pi. 1622. 1833. 



Erect or spreading annuals or perennials, stem simple, or divaricately or dichotomously 

 branched. Leaves opposite, palmately parted into 3-11 linear segments, rarely simple, then 

 linear-filiform. Inflorescence from open-cymose to congested in heads at the ends of the 

 branches, sometimes also solitary or in clusters in the forks of the cyme. Flowers sessile, 

 subsessile or on long slender pedicels. Calyx usually deeply cleft, the proper tube absent or 



