Vol. hi.] 



PHLOX FAMILY. 



37 



14. Phlox Hoodii Richards. Hood's 

 Phlox. (Fig. 2981.) 



Phlox Hoodii Richards. App. Frank. Journ. 733. pi. 



2S. 1823. 



Densely tufted and branched from a woody root, 

 i'-\' high. Leaves imbricated, erect, rigid, subu- 

 late, mucronate, somewhat woolly or ciliate, be- 

 coming glabrate, 2"-6" long; flowers solitary and 

 sessile at the ends of the branches, about 5" long; 

 calyx-teeth lanceolate, acuminate, rigid, longer 

 than the tube; tube of the corolla shorter than or 

 ccjualling the calyx, its lobes obovate, entire. 



In dry sandy or rocky soil, Manitoba to the North- 

 west Territorj', south to western Nebraska and Wyo- 

 ming. May-july. 



15. Phlox Douglasii Hook. Douglas' 

 Phlox. (Fig. 29S2.) 



Phlox Douglasii Hook. Fl. Bor. .\m. 2: 73. pi. ijS. 

 1834. 



Similar to the preceding species; leaves pu- 

 bescent or glabrous, less imbricated, sometimes 

 spreading, rigid, usually fascicled at the nodes, 

 4"--" long. Flowers solitarj' and sessile or 

 short-pedicelled at the ends of the branches, 

 5"-S" long; calyx-teeth narrowly lanceolate, 

 acuminate, about equalling the tube; tube of 

 the purple or white corolla longer than the 

 calyx, its lobes obovate, entire. 



Dry soil, Nebraska and Montana to Utah, Cali- 

 fornia and British Columbia. May-July. 



Phlox Douglasii andicola Britlon, Mem. Torr. Club, 5: 269. 1894. 

 Phlox Douglasii lo»t;ifolia .K. Gray, Proc. Am. Acad. 8: 254. 1S70. Not P. longifolia Nutt. 

 Leaves longer, S"- 12" long, less fascicled at the nodes. Range of the type. 



2. GILIA R. & P. Prodr. Fl. Per. 25. pi. 4. 1794. 



Herbs with opposite or alternate, entire pinnatifid palmatifid or dissected leaves. Flow- 

 ers small or large, solitary, cymose, capitate, thyrsoid, or paniculate. Calyx campanulate 

 or tubular, 5-toothed or 5-cleft, the sinuses usually scarious. Corolla fuunelform, tubular, 

 campanulate or rarely salverform, 5-Iobed, the lobes ovate, oblong, or obovate. Stamens 

 equally or unequally inserted on the corolla, included or exscrted. Ovary oblong or ovoid, 

 3-celled; ovules solitary or several in each cavity. Capsule ovoid or oblong, 3-celled, at 

 length distending and rupturing the calyx. Seed-coat commonly mucilaginous when 

 wetted, in some species emitting spiral thread-like tubes. [Named for Philip Gil, a Span- 

 ish botanist.] 



About 75 species, natives of America. Besides the following, some 48 others occur in the 

 southern and western parts of North America. 

 Leaves entire. 



Flowers paniculate. 

 Flowers narrowly thj-rsoid-spicate. 

 Leaves pinnately divided, pinnatifid or palmatifid. 



Leaves palmatifid into 5-7 rigid subulate segments. 

 Leaves pinnatifid or pinnately divided, the segments linear, not rigid. 

 Flowers thyrsoid-paniculate or corymbose-paniculate. 

 Corolla i'-2' long; plants 1^-4° tall. 

 Flowers paniculate, white. 

 Flowers narrowly thrysoid, red. 

 Corolla 3"-5" long, violet or blue. 

 Flowers narrowly thyrsoid-spicate. 

 Flowers in dense or capitate cynics, or heads. 

 Flower-clusters leafy-bracted. 



Perennial; coroUa-tuhe not longer than the calyx. 7. G. congesta. 



Annual; corolla-tube 2-3 times as long as the calyx. 8. G. pumila. 



Clusters bractless; corolla campanulate. g. G. tricolor. 



1. G. gracilis. 

 6. G. spicala. 



2. G. pungens. 



3. G. longiflora. 



4. G. aggregala. 



5. G. pinnatifida. 



6. G. spicala. 



