LOBELIACEAE. 427 



dioecious, mostly panicled or racemose flowers. Calyx campanulate, its limb 

 5-cleft. Corolla 5-partedj rotate or subcampanulate. Staminate flowers with 3 

 distinct stamens, the anther^saes flexuous, the rudimentary ovary 3-lobed. 

 Pistillate flowers often with 3 rudimentary stamens; ovary 3-oeUed; ovules 

 1 or 3 in each cavity; style 3-cleft, the 3 stigmas dilated. Fruit rather small, 

 slightly fleshy, mostly 3-seeded. [BrazUian name.] About 60 species of trop- 

 ical and subtropical America, one in tropical Africa. Type species: Cayaponia 

 diffusa Manso? 



Calyx 3— i mm. long, its teeth triangular ; corolla^lobes 3-5 mm. long. 1. O. racemosa. 

 Calyx 6-9 mm. long, its teeth lanceolate ; corolla-lobes 12—15 mm. long. 2. C, americana. 



1. Cayaponia racemosa (Sw.) Cogn. in DC. Mon. Phan. 3: 768. 1881. 



Bryonia racemosa Sw. Prodr. 116. 1788. 



Trianospermum racemosum Griseb. Cat. PI. Cub. 112. 1866. 



A somewhat woody, often high-climbing vine, up to 7 m. long, the stem 

 and branches glabrous. Leaves ovate-orbicular in outlinej 6-13 cm. long, 

 variously lobed, or the upper entire or nearly so, acute or acuminate at the 

 apex, cordate or subreniform at the base, scabrous above, puberulent or his- 

 pidulous beneath, the rather slender petioles 2-7 cm. long; flowers racemose 

 or racemose-paniculate, distant; pedicels 3-6 mm. long; calyx campanulate, 

 3-4 mm. long, its teeth triangular-ovate, very small; corolla about 1 cm. 

 broad; pepo oblong, red, 1-2 em. long. 



Coppices and clearings, Abaco, New Providence: — Cuba to Tortola; Tobago; 

 Trinidad and continental tropical America. Racemose Cayaponia. 



2. Cayaponia americana (Lam.) Cogn. in DC. Mon. Phan. 3: 785. 1881. 



Bryonia americana Lam. Eneycl. 1: 498. 1785. 



A long vine, glabrous, similar to C. racemosa, the leaves various, 3-5- 

 lobed or nearly entire, the petioles 2-7 cm. long. Flowers few, clustered in 

 short racemes or panicles, or sometimes solitary; pedicels 2-6 mm. long; calyx 

 campanulate-cylindric, 6-9 mm. long, its teeth lanceolate, 2-4 mm. long; 

 corolla 2-3 cm. broad; pepo oblong to ellipsoid, 14^18 mm. long. 



Coppice, Conch Sound, Andros : — Cuba to Tortola and St. Vincent. Recorded by 

 Mrs. Northrop as Trianosperma racemosum. Panict.bt> Catapokia. 



Family 2. LOBELIACEAE Dumort. 



Lobelia Family. 



Herbs, or in tropical regions rarely shrubs or trees, often with milky 

 sap which contains a narcotic-acid poison, with alternate estipulate 

 simple entire, toothed or pinnately parted leaves, and solitary spicate 

 racemose or paniculate flowers. Calyx-tube adnata to the ovary, its limb 

 5-lobed or 5-parted, the lobes equal or unequal. Corolla gamopetalous, ir- 

 regular, often bilabiate, its tube open on one side nearly or quite to the 

 base, its limb 5-lobed; stamens 5, inserted with the coroUa; filaments some- 

 times cohering into a tube ; anthers united. Ovary 2-5-celled ; style single ; 

 stigma fringed; ovules numerous, sessile, horizontal, anatropous. Fruit 

 a 1-5-celled capsule, or a berry. Seeds numerous, with a smooth or fur- 

 rowed testa. Endosperm fleshy. About 20 genera and 600 species, of wide 

 geographic distribution 



