3o4 (;i:ntianace.e. (gkntian family.) 



2. L. trachyspermum, Gray. Leaves larger (2 - 6' broad) and rounder, 

 thicker, often wavy-margined or crenate, roughish and dark-punctate or pitted 

 beneath; petioles stouter; seeds glandular-roughened. — Ponds and streams, 

 Md. and Va. to Fla. and Tex. 



Order 70. POLEMOXIACE^. (Polemonium Family.) 



Herbs, icitli alternate or opposite leaves, regular b-merous and o-androus 

 fiowers, the lobes of the corolla convolute in the bud, a 3-celled uvanj and 

 3-lobed style; capsule S-celled, 3-valved, loculicidal, few -many-seeded : 

 the valves usually breaking away from the triangular central column. — 

 Seeds ampliitropous, the coat frequently mucilaginous when moistened 

 and emitting spiral threads. Embryo straight in the axis of copious 

 albumen. Calyx persistent, imbricated. Corolla with a o-parted border. 

 Anthers introrsc. (Insipid and innocent plants; many are ornamental 

 in cultivation.) 

 1 Phlox. Corolla salvei-fonn. Calyx narrow. Leaves opposite, entire. 



2. Gilia. Corolla tubular-funnel-forni or salver-forni. Calyx narrow, jiartly scarious. 



Leaves mostly alternate, entire. 



3. Polemonium. Corolla open-bell-shapeJ. Calyx herbaoeons, bell-shaped. Filaments 



slender, eii'iiil. Leaves alternate, pinnate or pinnately parted. 



1. PHLOX, L. 



Calvx narrow, somewliat prismatic, or plaited and angled. Corolla salver- 

 form, with a long tube. Stamens very unequally inserted in the tube of the 

 corolla, included. Capsule ovoid, with sometimes 2 ovules but ripening only 

 a single seed in each cell. — Perennials (except a few southern species, such 

 as P. Drummondii of the gardens), with opposite and sessile perfectly entire 

 leaves, the floral often alternate. Flowers cymose, mostly bracted ; the open 

 dusters terminal or crowded in the upper axils. {^Xi^, flame, an ancient name 

 of Lychnis, transferred to this North American genus.) Most of our species 

 are cultivated in gardens. 



§ 1. Herbaceous, with flat (broad or narrow) leaves. 



* Stem strictly erect; panicle pyramidal or oblong, man y flowered ; peduncles 



and pedicels very short; corolla-lol)es entire. (Very common in gardens.) 



1. P. paniculata, L. Stem stout (2-4° high), smooth; leaves oblong- 

 lanceolate and ovate lanceolate, pointed, large, tapering at the base, the upper 

 often heart-shaped at the base ; panicle ample, pyramidal-corymbed ; calyx-teeth 

 aicn-pointed : corolla pink-purple varymg to white. — Open woods, Penn. to 

 111., south to Fla. and La. June, July. 



2. P. maculata, L. (Wild Sweet-William.) Smooth, or barely 

 roughish; stem spotted with purple, rather slender (1 -2° high) ; lower leaves 

 lanceolate, the upper nearly ovate-lanceolate, tapering to the apex from the 

 broad and rounded or somewhat heart-.shaped base ; panicle narrow, oblong, 

 leafy below; calyx-teeth triangular-lanceolate, short, scarcely pointed; corolla 

 pink-purple. — Rich woodlands and along streams, N. J. and N. Penn. to 

 Minn., south to Fla. and Ark. — V'ar. c.\m>id.\, Michx., is a white-flowered 

 form, commonly with spotless stem. With the ordinary form. 



