ORDER 95. GENTIANACE^E. 583 



1. SABBA'TIA, Adams. AMERICAN CENTAURY. (In honor of Sab- 

 bat i, a distinguished Italian botanical author.) Calyx 5 to 12-parted , 

 corolla rotate, limb 5 to 12-parted ; stamens 5 to 12 ; anthers ere< I 

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

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

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

 ican. . 



Corolla mostly 9 (rarely 7 to 12) -parted, rose-red. LAPITHEA, Griseb Nos. 1, 2 



j Corolla 5 (rarely 6)-parted. True SABBATIA. (a) 



a Branches alternate or forked. Flowervwhite or nearly so Nos. 3, 4 



Flowers rose red, starred Nos. 5, 6 



a Branches opposite. Flowers white, corymbed Nos. 7, 8 



Flowers rose-red, paniculate Nos. 9, 10 



1 S. gentianoides Ell. St strict, terete, subsimple ; Ivs. longer than the inter- 

 nodes, linear, rigid, erect, floral reflexed ; fls. 8 to 10-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. Fls. very handsome, deep rose-color, 16" diatn. ^ Aug. (Lapi- 

 thea, Griseb.) 



2 &. chloroides Ph. St. slender, weak, subterece ; Ivs. lanceolate, erect ; branches 

 few, alternate, 1-flowered ; 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 IV 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, rather rigid; Ivs. oblong, 3- 

 veined, obtuse ; fls. solitary. 5 to 6-parted ; cal. leafy lance-oblong, equaling or ex- 

 ceeding the corolla ; pet oblanceolate. Fields and meadows, Ya. 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 peduncles, about 1' diam., pink col- 

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



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

 ceeding the leaves ; branches alternate ; Ivs. 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 ; Ivs. linear and lance-linear, the 

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

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

 and meadows, Penn. to Fla. and La. Very slender, 1 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 fork-branched, with long, 

 1-flowered branches ; Ivs. lanceolate and obovate-lanceolate, acute ; cal. segm. linear, 

 varying hi length but much shorter than the ^-parted cprolla. 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 a 

 yellow star bordered with deep red. JL Sept S. gracilis (Ell.), which it 

 closely resembles. 



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

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

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

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

 tuse. Pine barrens, K 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 



