GENTIANACE^E. (GENTIAN FAMILY.) 335 



2. Stems shrubby, t ujled, creep! u// : leaves subulate, rigid, leafy in the axils: 



style short. 



11. P. SUbulata, L. Pubescent ; flowering stems erect ; leaves very nu- 

 merous, the upper ones linear and mostly alternate ; calyx teeth subulate, 

 erect, spine-pointed ; lobes of the corolla notched or entire. (P. setacea, 

 /,. I) Sandv pine barrens. April -May. Stems 4'- 12' long. Leaves 

 4" -6" long. Corolla '-!' broad, purple or white. 



P. DRUMMONDII, Hook., is an annual species, common in gardens. 



2. GILIA, Ruiz & Pavon. 



Calvx tubular or bell-shaped, 5-cleft. Corolla funnel-shaped, 5-lobed. Sta- 

 mens inserted equally near the mouth of the corolla. Ovules commonly 

 numerous in the cells. Capsule oblong or obovoid. Seeds angled or com- 

 pressed. Herbs, with finely divided leaves and showy flowers. 



1. G. COronopifolia, Pers. Stem tall, simple, pubescent; leaves pin- 

 natelv divided into many filiform segments ; flowers scarlet, racemose or 

 pnnicled; corolla tubular-funnel-shaped; stamens exserted. Dry sandy 

 soil, South Carolina, and westward. July. (2) Stem 2 - 4 high. Corolla 

 1 ' long, yellow and spotted with red within. 



3. POLEMONIUM, L. 



Calvx bell-shaped, 5-cleft. Corolla short-bell-shaped, 5-lobed. Stamens 5, 

 declined, inserted equally on the throat of the corolla, with a hairy appendage 

 at the base of the filaments. Ovules numerous in the cells. Capsule ovoid. 

 Seeds angled. Herbs, with alternate pinnately divided leaves, and blue or 

 white flowers in a nearly bractless corymb. 



1. P. reptans, L. Smooth ; stem weak, diffusely branched ; leaves peti- 

 oled, pinnate, with 5-13 lanceolate or elliptical entire leaflets ; corymbs pedun- 

 cled, few-flowered ; flowers nodding; calyx lobes ovate, acute ; corolla blue; 

 anthers white. Shady woods in the upper districts. April - May. If. 

 Stem i - 1 high. Leaflets |' - 1|' long. Calyx enlarged in fruit. 



ORDER 94. GENTIANACE^E. (GENTIAN FAMILY.) 



Chiefly smooth and bitter herbs, with colorless juice, opposite en- 

 tire partly sheathing exstipulate leaves, and regular often showy 

 fl,wers. Calyx 4-12-parted, or 4-12-cleft. Corolla 4-12-lobed, 

 convolute, rarely valvate or imbricated in the bud, hypogynous. 

 Stamens alternate with the lobes of the corolla, and inserted on its 

 tube : anthers 2-celled. Ovary single, with numerous anatropous 

 ovules. Stigmas 1-2. Capsule 1 -celled, or imperfectly 2-4-celled 

 by the introversion of the margins of the valves, septicidally 2-valved. 

 Placentae parietal. Seeds numerous. Embryo minute, in the axis of 

 fleshy albumen. 



