GENTIANACEAE. 331 



2. EUSTOMA Salisb. Parad. Lond. pi. 34. 1806. 



Glabrous, often glaucous, annual herbs, witli opposite, sessile or clasping, 

 entire leaves. Flowers large, blue, purple or white, long-peduncled. Calyx 

 deeply 5-6-cleft, the lobes lanceolate, acuminate, keeled. Corolla deeply 5-6- 

 lobed, the lobes oblong or obovate, convolute in the bud. Stamens 5-6, inserted 

 on the throat of the corolla; filaments filiform; anthers oblong, versatile. 

 Ovary 1-eelled; stigma 2-lamellate. Capsule 2-valved. Seeds small, numerous, 

 foveolate. [Greek, open-mouth, referring to the corolla.] Four or five species, 

 natives of the southern United States, Mexico and the West Indies. Type 

 species: Mustoma silenifolium Salisb. 



1. Eustoma exaltjltum (L.) Griseb. Fl. Br. W. I. 422. 1861. 



Gentiana exaltata L. Sp. PI. ed. 2, 331. 1762. 



Erect, slightly fleshy, 1-9 dm. high, large plants often much-branched and 

 many-flowered, small plants simple and 1-flowered. Leaves oblong or oblong- 

 lanceolate, somewhat clasping, sessile, 1.5-9 em. long, the lower obtuse, the 

 upper acute; calyx-lobes nearly flliform-aouminate, 1-S cm. long; corolla blue 

 or nearly white, sometimes light bine above and dark blue below within, 2-4 cm. 

 broad, its lobes obovate, irregularly dentate; style about twice as long as the 

 stigma-lobes; capsule oblong, obtuse, 2-2.5 cm. long. 



Brackish borders of marshes and savannas, Nortli Bimini, Andres, New Provi- 

 dence, Great Bxuma, Long Island, Cat Is'land and Acljlin's : — Florida to Texas, 

 Mexico and south to northern South America ; Cuba ; Hlspanlola ; Jamaica. Mabsh 

 Gentian. 



3. SABBATIA Adans. Fam. PI. 2: 503. 1763. 



Annual or biennial erect glabrous herbs, with opposite or sometimes verti- 

 cillate, sessile or rarely petioled or clasping leaves, and terminal pink rose or 

 white flowers. Calyx 4-12-parted or -divided, the tube campanulate, sometimes 

 very short, the lobes or segments usually narrow. Corolla rotate, deeply 4-12- 

 parted. Stamens 4-12, inserted on the short tube of the corolla; filaments fili- 

 form short; anthers curved, revolute or coiled in anthesis. Ovary 1-eelled, the 

 placentae intruded; style 2-oleft or 2-parted, its lobes filiform, stigmatie along 

 their inner sides. Capsule 2-valved, many-seeded. Seeds small, reticulated. 

 [In honor of L. Sabbati, an Italian botanist.] About 18 species, natives of 

 eastern North America, Mexico and the West Indies. Type species: Gentiana 

 dodecandra L. 



Corolla 2-3 cm. wide, rose-pink ; stigmas oblong-linear. 1. S. campanulata. 



Corolla less than 2 cm. wide, pure white ; stigmas spatulate. 2. S. simulata. 



1. Sabbatia campanulata (L.) Torrey, Fl. U. S. 1: 217. 1824. 



Chironia campanulata L. Sp. PI. 190. 1753. 

 Sablatia gracilis Salisb. Parad. Lond. pi. SS. 1806. 



Stem 3-6 dm. high. Leaves linear or linear-lanceolate, 2-4 cm. long, 

 sessile, acute or the lowest much shorter, obtuse^ oblong or oblanceolate, the 

 uppermost almost filiform ; flowers pink with a yellow eye, about 2.5 cm. broad, 

 mostly 5-parted; calyx-lobes filiform-linear, equalling the oblong-obovate 

 corolla-segments, or somewhat shorter; stigmas oblong-linear; capsule obovoid, 

 about 5 mm. high. 



Brackish marshes, Abaco and Great Bahama : — Eastern Massachusetts to 

 Florida and Louisiana : — Cuba. Slbndee Maesh Pink. 



