184 POPULAR FLORA. 



B. Spreading P. Stems ascending, 9' to 18' high, rather clammy; leaves ovate-oblong or broad 

 lance-shajjed ; cyme loosely-flowered; lobes of the pale lilac or bluish corolla generally obcordate 

 and rather distant from each other. Fl. spring, N. & W. P. divaricata. 



6. Ground P. or Moss-Pink. Plant creeping and tufted in flat mats; leaves awl-shaped or lance- 



linear, small, crowded; corolla pink or rose-color, with a darker eye, sometimes v/hite. Fl. springs 

 in sandy or rocky soil. S. & E. P. subulata. 



* * Garden annual from Texas. 



7. Drummond's p. Rather clammy, branched ; leaves lance-oblong, the upper heart-shaped at the 



base; corolla crimson, purple or rose-color, lobes entire. P. Drummoiidii. 



Polemonium. Pohmbnium. 



1. Blue P. (Called in gardens JacoS's La&?er or Greeh Valerian.) Stem erect, 1° or 2° high, leafy; 



leaflets many ; seeds several. Gardens. P. ccei^leum. 



2. Wild P. Stems weak, spreading; leaflets 7 to 11; flowers few. Woods, W. & S. P. reptans 



67. CONVOLVULUS FAMILY. Order CONVOLVULACE^. 



Twining or trailing herbs, oflen with some milky juice, with alternate leaves and regular 

 flowers : calyx of 5 sepals : corolla 5-plaited or 5-lobed. Stamens 5. Pistil making a 

 round pod, with 2 to 4 cells and one or two large seeds erect from the bottom of each cell. 

 (For illustrations see Fig. 4 to 7, 13 to 22.) Dodders are leafless paraisitic plants of the 

 family. 



Plants with foliage, and bearing large flowers, open only for one day. Style one. 



Stamens protruded beyond the mouth of the tubular or trumpet-shaped and crimson 



or scarlet corolla, ( Qudmodit) Quamoclit. 



Stamens included in the tube of the almost entire corolla. 



Stigma thick, 2-lobed : corolla bell-shaped ; pod 4-celled, 4-seeded, ( Batatas) Sweet Potato. 

 Stigma capitate, thick, with 2 or 3 lobes : corolla funnel-form : pod with 2 or 3 



cells, and 2 seeds in each cell, (Iponicsa) Morning-Glory- 



Stigmas 2, long, linear or oblong. [Bindweed.* 



Calyx naked at the base : corolla bell-shaped, { Convdlvulus) *Convolvulus or 



Calyx covered by 2 large bractlets : corolla funnel-form, ( Calysteyia) Bracted-Bijsdweed. 

 Plants with leafless whitish, reddish, or yellowish thread-like stems, twining over other 

 plants, and attaching themselves to their bark, on which they feed; flowers in clus- 

 ters : corolla bell-shaped, with 5 scales inside the stamens : pod 2-celled, cells 2-seeded : 

 embryo spiral, without any cotyledons, ( Cuscuta) Dodder. 



Quamoclit* Quamoclit. 



1. Ctpress-vine Q. Leaves narrow, pinnately dissected into thread-shaped divisions; limb of the 



corolla rather deeply 6-lobed. Garden annual. Q. vulgaris. 



2. Scarlet Q. Leaves heart-shaped, entire or nearly so ; corolla scarcely lobed, Q coccinea. 



* The low Three-colored Convolvulus ( C. tricolor) is a garden annual. 



