PHLOX FAMILY 417 



Filaments of anthers hairy below; flowers on pedicels; leaves entire, 5-20 mm. long. 



18. L. dianthtflorus. 



Membranes of the calyx-lobes united their full length and truncate across the top; flowers 

 yjiiHe, 19. L. conannus. 



Calyx-lobes free to base, membrane-margined; leaves subequal to exceeding internodes but not 

 concealing them. 20. L. demtssum. 



Corolla funnelform to salverform, the tube 1-2 mm. thick, usually much longer than the throat. 

 Corolla funnelform, the tube very stout. 



Membrane of the calyx-lobes forming a tube only toward the base, the niembrane continuing 

 up the free portion of the sepal to near its tip; corolla glabrous within. 

 Corolla 10-15 mm. long, the tube barely exserted from the calyx; stamens inserted at 



the base of the throat. 21. L. Ktlltptt. 



Corolla 15-25 mm. long, the tube usually long-exserted from the calyx; stamens inserted 

 at the middle of the throat. 22. L. Orcuttn pactfictis. 



Membrane of the calyx-lobes united nearly their full length, free portion of the lobes not 

 margined; corolla with a hairy ring within tube. 23. L. grandiflorus. 



Corolla salverform to long-funnelform, the tube very slender and threadlike, often 2 or more 

 times the calyx. 

 Bracts of the inflorescence short-hispid, hirsute or pilose, never coarsely ciliate. 



Corolla 10-30 mm. long, the lobes rounded, the tube usually darker than the lobes; 

 stamens barely exserted, not exceeding the style; filaments 2-3 times the anther; 

 leaf-segments linear. 

 Sinuses of the bract-iobes not membranous, the lobes hirsute; corolla-tube glabrous, 



2.5-3 times the calyx. 24. L. brevtculus. 



Sinuses of bract-lobes half-filled with a scarious membrane, the lobes villous-ciliate; 

 corolla-tube 1-2 times the calyx. 25. L. nudatus. 



Corolla 6-10 mm. long, the lobes truncate or emarginate, tube and lobes white; stamens 

 exserted beyond the style; filaments 3-S limes the anther; leaf-segments oblanceo- 

 late. 26. L. tularensts. 



Bracts of the inflorescence coarsely and often densely hispid-ciliate. 



Corolla-lobes 2-3 mm. long, occasionally with a purple spot at the base, the tube glabrous. 



27. L. ciliatus. 



Corolla-lobes 5-8 mm. long, usually with a purple spot at the base, the tube pubescent. 



28. L. montanus. 



Calyx, if membranous, then inconspicuously so, the proper calyx-tube herbaceous and \vith no evident pseudo- 

 tube, the lobes never membrane-margined; corolla salverform with an ample short throat. 



Plants annual. 



Corolla-lobes 5-8 mm. long. 



Corolla-tube 1.5-2 times the calyx, rarely more than 1 cm. long; locules of capsule 1-3-seeded; 



seeds smooth; a very uniform species. 29. L. serrutatus. 



Corolla-tube 2-6 times the calyx, rarely less than 2 cm. long; locules of capsule 3-6-seeded; seeds 

 rugose; a very polymorphic species. 30. L. androsaccus. 



Corolla-lobes 3-5 mm. long. 



Corolla pink or sometimes white, the throat and tube yellow; frequently the middle lobe of lower 



leaves oblanceolate; stigma-lobes mostly less than 1 mm. long. 31. L. btcolor. 

 Corolla yellow throughout; leaf-lobes uniformly linear, acicular; stigma-lobes 2-4 mm. long. 



32. L. actcularts. 



Plants perennial. 



Flowers sessile or subsessile in head-like cymes; leaf-whorls compact and rigid (intergrading with the 



next). ^^- ^- Nuttalhi. 



Flowers subsessile to long-pedicelled; leaf-whorls more open and lax. 34. L. ftoribundus. 



1. Linanthus Harknessii (Curran) Greene. Harkness' Linanthus. Fig. 3926. 



Gilia Harknessii Curran, Bull. Calif. Acad. 1: 12. 1884. 



Navarretia Harknessii Kuntze, Rev. Gen. PI. 2: 433. 1891. 



Linanthus Harknessii Greene, Pittonia 2: 255. 1892. 



Gilia pharnaceoides var. Harknessii M. E. Jones, Contr. West. Bot. No. 12: 55. 1908. 



Erect annual, 5-15 cm. high; stems branching well above the base, puberulent to glabrate. 

 Leaves 3-5 parted into linear lobes 6-15 mm. long, glabrate to minutely hirsute; flowers on 

 slender filiform pedicels subtended by simple or 3-5-parted bracts in a cymose or dichotomous 

 panicle ; calyx subequal to corolla, deeply cleft into linear segments 2-3 mm. long, sinuses about 

 half-filled with a narrow hyaline membrane which flanks the lobes above ; corolla short-funnel- 

 form, white to pale blue, tube short, glabrous within, lobes subequal to tube and throat ; stamens 

 inserted at base of throat, anther included, filaments glabrous ; stigma included ; capsule-locules 

 1 -seeded. 



Open gravelly slopes, Arid Transition and Boreal Zones; Coast Ranges and Sierra Nevada from Lake and 

 Fresno Counties, California, northward on the west side of the Cascades to Washington. Type locality: summit 

 of the Sierra Nevada" (Donner Pass). June-Aug. 



Linanthus Harknessii subsp. condensatus H. L. Mason, Madrono 9: 250. 1948. Low, densely branched; 

 corolla exceeding calyx; stamens subsessile, inserted midway on throat. Type locality: Plaskett Meadows, Glenn 

 County, California. Not otherwise known. 



2. Linanthus pygmaeus (Brand) J. T. Howell. Pigmy Linanthus. Fig 3927. 



Gilia pygmaea Brand, Pflanzenreich A'^: 134. 1907. 



Linanthus pygmaeus J. T. Howell, Leaflets West. Bot. 2: 100. 1938. 



Erect or diflfuse annual, 2-10 cm. high ; stems slender, filiform, wiry, minutely pilose-hispidu- 

 lous to glabrate. Leaves 3-5-cleft into linear, setose, hairy or hispid lobes, sometimes the middle 

 lobe longer and lanceolate ; flowers solitary on capillary pedicels, erect ; calyx cylindrical, deeply 

 cleft into linear, minutely pilose, hispid lobes, sinuses over half-filled by a hyaline membrane, 

 distended but not ruptured by the growing capsule ; corolla narrowly funnelform, 3-5 mm. long, 



