LOBELIACEAE. 427 



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

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

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

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

 1 or 2 in each cavity; style 3-cleft, the 3 stigmas dilated. Fruit rather small, 

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

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

 diffuse, Manso? 



Calyx 34 mm. long, its teeth triangular ; corolla-lobes 3-5 mm. long. 1. C. racemosa. 

 Calyx 6-9 mm. long, its teeth lanceolate ; corolla-lobes 1215 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 outline^ 6-13 cm. long, 

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

 apex, cordate or subreniform at the ba?e, scabrous above, puberulent or his- 

 pidiilous 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 cm. 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. Encyel. 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. PANICLED CAYAPONIA. 



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 adnate to the ovary, its limb 

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

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

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

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

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

 a 1-5-eelled 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 



