OrDER 95——THE GENTIANWORTS. 271 
1. GENTIA’NA. Gentian. 
Calyx 4-5-cleft. Corolla 4-5-lobed, regular, usually with plaited folds 
between the lobes. Stigmas 2, style short or none. Pod oblong, 2-valved, 
many-seeded.—Leaves opposite. Flowerssolitary or ineymes. Aug.—Oct. 
§ Corolla with folded appendages between the 5 lobes. Anthers cohering....b 
voroiia with no appendages between the lobes. Anthers separate....a 
a Segments vf Wwe corolla entire, pale-blue, 5 in number....1 
a Segments of une corolla fringed, mostly but 4, bright blue....2, 3 
o Hlowers solitary, terminal, blue or white....4 
> Klowers @, istered, yellowish or cream-white....5, 6 
> *awers clasiered, blue....7-9 
* G.qumquefio‘ra. *we-leaved G. Clusters about 5-flowered. Corolla lobes bristlé- 
some, 
% G. crini’ta, Fringed G. Leaves lanceolate. Corolla conspicuously fringed. 
Height 1f. 
8 G. det’onsa. Shorn G. Lvs. linear. Corolla lobes crenate-ciliate. Height 1f. 
4 G.angustifo’lia. Sand G. Slender, lf.erect. Lvs.linear. Flowerlarge. 0.orp. 
5 G. ochroleu’ca, Pule G. Lvs. lance-oval, narrowed to the sessile base. Corolla 
greenish-white, a third longer than the sepals. S. M. 
6 G.alba. Whitish G. Lvs. lance-ovate, clasping with the broad base. Corolla 
cream-white, 4 times longer than sepals. W. M. 
7 G. Andrew’sii. Closed Blue G. Leaves ovate-lanceolate, 8-veined. Corolla never 
opening, the lobes equalling the 5 fringed folds. (Figs. 615-619.) 
8 G. Sapona’ria. Soapwort G. Plant smooth. Leaves rough-edged, linear-lanceo- 
late. Corolla open, the lobes twice longer than the cleft folds. 
9 G. puber’ula) Rough G. Plant scabrous. Lvs. lance-ovate, very rough at edge. 
Corolla somewhat bell-shaped, folds very short. W.S. 
2. SABBA’TIA. American Centaury. 
Calyx 5-12-parted. Corolla rotate, limb 5-12-parted. Stamens 5-12. 
Style 2-parted. Capsule 1-celled—Beantiful biennials, with mostly ro- 
seate flowers. 
§ Corolla mostly 9 (rarely 7-12)-parted....1, 2 
§ Corolla 5 (rarely 6)-parted....a 
a Branches alternate or forked....b 
a Branches opposite. Flowers with a central star....0 
b Flowers white or nearly white....3, 4 
b Flowers rose-red, with a central star....5, 0 
= Flowers white, corymbed....7, 8 
wv Flowers rose-red, panioulate....9, 10 
