Order 95.— GENTIANACEJS. 583 



1. SABBA^TIA, Adams. American Centaury. (In honor of Sab- 

 bati, a distinguished Italian botanical author.) Calyx 5 to 12-parted; 

 corolla rotate, limb 5 to 12-parted; stamens 5 to 12; anthers erect, at 

 length recurved, 2-eellcd, opening by chinks ; style 2-parted, slender, 

 deciduous; capsule 1-celled, the valves a little introflexed. — © Slender 

 herbs, very beautiful, with pedicellate, mostly roseate fis. All N. Amer- 

 ican. 



§ Corolla mostly 9 (rarely T to 12)-partod, rose-rod. Lapitiiea, Griseb .Nos. 1,2 



I Corolla 5 < rarely 6)-purtcd. True Saiciiatia, (a) 



a Branches alternate or forked. — Flowers white or nearly so Nos. 3, 4 



— Flowers rose red, starred Nos. 6, ft 



a Branches opposite. — Flowers white, cory mbed Nos. 7, 8 



— Flowers rose-red, paniculate Nos. 9, 10 



1 S. gentianoides Ell. St. strict, terete, subsimple ; his. longer than the inkr- 

 noizs, linear, rigid, erect, floral reflexed ; fis. 8 to 1 0-parted, in small, terminal and 

 axillary capitate cymes ; cal. segm. subulate, shorter than the obovate-spatulate, 

 obtuse petals. — Ponds in pine- barrens, Ga. to La* and Tex. Plant 1 to 2f high. 

 Lvs. 2 to 3' long. Fis. very handsome, deep rose-color, 16" diam. Aug. (Lapi- 

 thea, Griseb.) 



2 S. chloroides Ph. St slender, weak, subtcrete; Ivs. lanceolate, erect ; branches 

 few, alternate, 1-fhwered; fls. 7 to 12-parted ; sep. linear, shorter than the corolla 

 — Wet grounds, Mass., R. I. to Ga. and Fla. St. 2 to 3f high, somewhat angular. 

 Lvs. 1 to l\' long, closely sessile, acute, veinless. Fls. solitary, terminal. Cor. 

 nearly 2' diam., much larger than the calyx, bright purple with a yellow base. 

 Jn. 



3 S. calycosa Ph. St. erect, terete, fork-branched, ratJier rigid; lvs. oblong, 3- 

 veined, obtuse ; fls. solitary, 5 to G-parted ; cal. leafy lance-oblong, equaling or ex- 

 ceeding tlie corolla ; pet. oblanceolate. — Fields and meadows, Va. to Ga. and La 

 St. a foot high, subangular, with spreading branches. Lvs. 1 to 2' long, sessile, 

 mostly obtuse, oval, thin. Fls. on long, rigid poduncles, about 1' diam., pink col- 

 ored. Sep. acute. Fruit as large as a pea Jn. — Sept. 



4 S. paniculata ELL St. terete, or slightly angled at base ; internodes much ex- 

 ceeding the leaves ; branches alternate ; lvs. linear, the lower oval and rarely 

 roundish ; panicle diffuse but its branches strict ,• cal. segm. linear-setaceous, 2 or 

 3 times longer than its tube, twice shorter than the corolla ; cor. segm. 5, obtuse. — 

 Damp pine barrens, South, common. Much branched, 1 to 2f high. Lvs. 4 to 

 10" long. Fls. white, 1' diam. Jl. — Oct. 



5 S. gracilis Salisb. St. slightly angular, internodes twice longer than the leaves ; 

 branches flaccid, 1-flowered, alternate, spreading; lvs. linear and lance-linear, the 

 lowest lance-ovate ; panicle diffuse, few-flowered ; cal. segments linear-setaceous, 

 about equaling the corolla ; cor. 5-parted, lobes elliptic-oblong, obtuse. — Marshes 

 and meadows, Penn. to Fla. and La. Very slender, I to 2f high, with long, al- 

 most filiform branches. Fls. terminal, subsolitary, 14" broad, on long peduncles. 

 JL, Aug. 



6 S. stellaris Ph. St. somewhat angular, sparingly foik-branched, with long, 

 1-flowered branches; lvs. lanceolate and obovate-lancaol/ite, acute; cal. segm. linear, 

 varying in length but much shorter than the 5-parted corolla, the tube top-shaped, 

 very short. — Marshes, Can. to Car. St. 3 to 15' high, often diffusely branched. 

 Lvs. about 1' long, the upper almost linear. Fls. of a bright rose-color, with t» 

 yellow star bordered with deep red. Jl. — Sept. S. gracilis (E1L), which h 

 closely resembles. 



7 S. corymbosa Baldwin. St slightly 4-angled, internodes twice longer than 

 the leaves ; branches opposite ; lvs. ovate-lanceolate, 3-veined, acutish, upper ones 

 lanceolate : cyme fastigiate, terminal ; eal segm. linear, 3 times longer than its tube, 

 twice shorter than the corolla; cor. 5 to 6-partcd, white, lobes obovate-olong, ob- 

 tuse. — Pine barrens, N. J. to Ga. St a foot high, branching near the summit 

 Lvs. an inch in length, closely sessile. Fls. few, generally 6-merous, white. Jn., 

 Jl. (Chironia lanceolata Walt) 



8 S. macrophylla Hook. St. terete, glaucous; internodes twice longer than 



