84 nrDROPUYLLACE^ 



8. POLEMOTSrrCTM. 



Tnf ted, more or less vUcid: corolla funnelform: alpine 1, 3 



Stems 1 to 3 ft. high: leAfleta moatly an inch or more long 8, 4 



Slender, much branched: leaflets 2 to 4 lines long: annual 6 



1. P. confertum. Or. Small leaflets 2-3-divided: flowers in heads, 6 to 12 lines long. 



2. P. lnunile, Willd., var. pulchellum, Or. Leaflets entire: flowers fewer. 



3. P. cceruleum, L, Flowers bine, numerous, in a narrow naked panicle. 



4. P. cameum, Gr. Corolla salmon or flesh color, often over an inch long> 

 Var. luteum, Gr. Corolla yellow, lobes (as in the species) broadly obovate. Or. 



5. P. zuicranth.iun, Benth. Corolla whitish, nearly rotate, small. 



HTDROPHYLLACE^. 



i 1. Ovary and pod globose, 1 -celled, lined with a pair of expanded placenta: corolU 

 usually convolute in the bud. Herbs. 



* Stamen* and style much exserted: calyx not enlarged in fruit: Jloweri in dense clusters or 



heads: leaves aUemate: perennial, 1 



* * Stamens shorter than the corolla: calyx enlarging in fruit: flowers scattered or in loosi 



clusters: lower and sometimes all the leaves opposite: annual: 



Calyx with reflexed appendages between the lobes 2 



Calyx not appendaged: the lobes broad and obtuse: corolla white 3 



§ 2. Ovary 1-2-celled: calyx deeply parted: corolla imbricated in the bud. 



Leaves all entire and opposite 4 



Leaves all or all but the lowest alternate simple or compoond: style 2-oleft. 



Corolla deciduous, not yellow 6 



Corolla persistant, yellow 6 



Leaves mostly radical, long petioled, round-cordate, crenately 7-S-lobod. 



Style and stigma entire: cymes bractless, racemose 7 



Leaves and 1 -flowered peduncles all radical: corolla lobes 5 to 7 8 



% 3. Ovary completely or nearly 2-celIed: styles distinct, the tips thickened: corolla 

 imbricated not appendaged: leaves simple. 



Woody at base or tufted: corolla narrow funnelform 9 



Shrubs; leaves thick, toothed: cymes temunal ».,.. 10 



1. HYDEOPHYXLTnyi, Toumefort. 



1. H. capitattun, Dougl. Leaves 5-7-parted, lobes 2-3-cleft. 



2. H. occidentale, Gr. Leaves 7-15-partcd, lobes cleft, obtuse. 

 Var. Watsoni, Gr. Almost etemless, softer hairy. 



3. H. Virginicum. L. Lc^aves bri^^lit green, nearly smooth, 3-5.partc<i- 



