POLEMONIACE^. (POLEMONIOM FAMILY.) 329 



leaflets ; the upper 5 - 7-cleft or cnt-toothed, the lobes obtuse ; raceme 3 - \Q-flovo- 

 ered; calyx-lobes linear-oblong, obtuse, becoming spatulate; corolla white (i'-J' 

 broad). Q) — Woods, high mountains of Virginia, and southward. May. 



§3. EUTOCA. (Eutoca, iJ. Br.) — Seeds {or at least the ovules) several or many, 

 rarely mdy 3 or i on each placenta : corolla usually with small and inconspicuous 

 folds or appendages within, its lobes entire. 



4. I*, parvlfldra, Pnrsh. Somewhat hairy, slender, diffusely spreading 

 (3' - 8' high) ; leaves pinnately cleft or the lower divided into 3-7 short lobes ; 

 racemes solitary, loosely 5 - 15-Jlowered ; pedicels filiform, at length several times 

 longer than the oblong calyx-lobes ; corolla bluish or white (i'- J' broad) ; pod 

 few-seeded. ® — Shadedbanl£S,Penn. to Virginia and southward. April -June. 



5. P. Franklinii. Soft-hairy; stem erect (6'- 15' high), rather stout; 

 leaves pinnately parted into niany lanceolate or oblong-linear lobes, which are 

 crowded and often cut-toothed or pinnatifid ; racemes short, dense, crowded into an 

 oblong spike; calyx-lobes linear; corolla blue; pod many-seeded. (1) (Eutoca 

 Franklinii, R. Br.) — Shore of Lake Superior (Prof. Joy, ^c); thence north- 

 ward and westward. 



Order 80. POL.EMO]VIACEiE. (Polemonium Family.) 



Herbs, with alternate or opposite leaves, regular 5-meroiis and 5-androus 

 flowers, the lobes of the corolla convolute (in one tribe imbricated) in the bud, 

 a S-ceUed ovary and 3-lobed style ; the pod S-celled, 3-valved, loculicidal,few- 

 many-seeded ; the valves usually breaking away from the triangular central 

 column. — Seeds amphitropous, the coat frequently mucilaginous when 

 moistened and emitting spiral threads. Embryo straight in the axis of co- 

 pious albumen. Calyx persistent, imbricated in the bud. Corolla with a 

 5-parted border. Anthers introrse. Flowers cymose-panicled. (Insipid 

 and innocent plants ; many are ornamental in cultivation.) 



Trihb T. POIjEMONIE^. Calyx B-cleft. Corolla with the lobes convolute in the 

 bud. Filaments filiform, inserted on the tube of the corolla : cells of the anther parallel, 

 opening lengthwise. 



1. FOLEMONITJM. Calyx and corolla open-bell-shaped. ^Filaments slender, equal. 



2. PHLOX. Calyx narrow. Corolla salver-shaped, with a long tube, including the unequally 



inserted filaments. 



Tribe n. DlAPEIff SIEJB* Calyx of 5 sepals. Corolla with the lobes imbricated in 

 the bud, and with the broad and flat filaments in the sinuses. Anthers with the cells 

 opening transversely. 



3. DIAPENSIA. Anther-cells pointless, opening by an obliquely trajisverse line. 



4 PYXIDANTHBRA. Anther-cells awn-pointed underneath, opening straight across. 



1. POIiEMONIUM, Toura. Greek Valerian. 



Calyx bell-shaped. Stamens equally inserted at the summit of the very short 

 tube of the opon-bell-shaped corolla; filaments slender, decUncd, hairy-appen- 

 daged at the base. Pod few - several-seeded. — Low, branching herbs, with al- 

 28* 



