POLEMONUCEffi. Si45 



* * * Calyx scarious between the angles. 



Leaves altercate; stamens inserted equally Gilia 4 



Leaves mostly opposite and corolla ealverform; 



Leaves mostly digitate-divided: stamens inserted equally Linanthus 5 



" undivided; stamens unequally inserted Phlox 6 



1. POLEMONIUM, Diosc. Herbs with alternate pinnate flaccid 

 leaves, the leaflets or segments sessile, entire. Calyx herbaceous 

 throughout, neither angled nor costate, slightly accrescent and loosely 

 investing the capsule, campanulate or narrower, cleft to the middle, the 

 segments lanceolate or broader, equal, erect, or connivent over the cap- 

 sule, or campanulate-spreading, entire, never recurved nor aristale- 

 pointed. Corolla regular, in ours campanulate, blue or purplish. Sta- 

 mens more or less declined. Seeds angular or winged. 



1. P. carueum, Gray. Stoutish, 1 — 2 ft. high, sparingly leafy, 

 loosely cymose-paniculate, the branchlets 3-flowered: leaflets ovate to 

 oblong-lanceolate, 1 — \% in. long: calyx deeply 5-cleft; lobes ovate- 

 oblong: corolla campanulate-funDelform, nearly 1 in. long and as broad 

 in expansion, salmon-color to violet-purple; lobes round-obovate: ovules 

 and seeds 3 or 4 in each cell. — Most beautiful species, of mountain 

 woods in San Mateo and Marin counties, and far northward. June. 



2. COLLOMIA, Nuit. Herbs with alternate leaves, and cymose 

 clustered flowers. Calyx scarious below between the angles, in flower 

 turbinate, in age obpyramidal or nearly cyathiform, not distended by 

 the capsule; segments herbaceous, equal, entire, triangular or lanceo- 

 late, erect, never recurved or even spreading; the sinuses at length 

 distended below into a revolute lobe. Corolla with narrow tube, open 

 throat, and a spreading limb. Stamens unequal and unequally inserted 

 on the tube of the corolla. Capsule narrowed at base. Seeds usually 

 1 in each cell. 



1. C. grandiflora, Dougl. Erect, 6 in. to 2 ft. high, leafy through- 

 out, flowering only at and near the summit: leaves linear, and oblong- 

 lanceolate, to almost ovate around the flower-clusters, 2—3 in. long, 

 mostly entire: fl. capitate crowded at summit, and at the ends of a few 

 subterminal short branchlets: calyx and bracts viscid-pubescent: corolla 

 pale salmon-color, 1 in. long or more, narrowly funnelform, with limb of 

 oblong lobes spreading to the width of 8—10 lines.— Slopes and summits 

 of the inner coast mountains, at considerable elevations. June, July. 



2. C. heterophylla, Hook. Low, diffuse, pubescent and viscid: 

 leaves thin, more or less bipinnatifld, or some of the upper merely 

 toothed, or entire: fl. in small clusters in the axils, and at ends of 

 branches; corolla small, slend"er-salverform, deep purple: capsule ellip- 

 soid; seeds 2—3 in each cell.— Common in mountain shades. 



3. N AVARRETI A, Ruiz & Pavon. Annuals, glabrous and scentless, 

 or viscid-pubescent and heavy-scented; the leaves always alternate, even 



