104 FLORA OF JAMAICA Scyhalium 



Fruit a 1 -celled, 1 -seeded nut. Seed oblong, with oily endosperm ; 

 embryo very minute, apical. 



Species 4, natives of the West Indies, Brazil and CcJombia. 



S. jamaieense Srlwtt A- EndJ. Melet. 12 (1832); EichL in 

 DC. Prodr. xvii. 133 ; Urh. Symh. Ant. iv. 210. Cynomorium 

 erectum kc. Browne HiKt. Jam. 334. Cynomorium jamaieense 

 Sw. Prodr. 12 (1788) & Fl. Ind. Occ. 11; Wright Mem. 297. 

 C. coccineum Descourt. FL Ant. ii. t. 96 (1821-29) (non L.). 

 Phyllocoryne jamaicensis Hook. f. in Trans. Linn. Soc. xxii. 51, 

 /. 11 (1856) ; Griseh. Fl. Br. W. Ind. 309. (PJ. 5.) 



In woods ou the mountains of the interior during April and May ; 

 Wright ! Browne ; Swartz ; St. Mary, McNab ! Portland ; Westmoreland ; 

 Purdie ! Wilson ; WnUscJilaegel ; Prior ! Harris ! Cuba, Hispaniola, Porto 

 Rico. 



Rhizome long, cylindrical. Spadices 4-23 cm. 1., unisexual, cylindrical 

 or subclavate; peduncle 1-5-18 cm. 1. Scales greyish-brown, ovate or 

 broadly triangular, acuminate, the lower smaller, about -5 mm. 1., passing 

 into the bracts (15-25 mm. 1.). Capitulum blood-red-coloured, 2-G cm. 1. 

 Male floivcrs 5 mm. 1., purple; female (incl. styles) about 2-5 mm. 1. 

 Fruit 2 mm. 1. 



Family XIII. ARISTOLOCHIACE^. 



Herbaceous or shrubby, sometimes twining (in AVest Indian 

 species). Leaves alternate. Flowers hermaphrodite. Perianth 

 simple, superior, coloured. Stamens generally 6, sometimes 

 more, forming a column with the style (gynostemium) ; anthers 

 adnate to the column, the cells dehiscing outwardly. Ovary 

 inferior, 6-celled (imperfectly or perfectly), the placentas project- 

 ing from the walls into the centre of the ovary and sometimes 

 uniting. Style with 3 or 6 stigmatic lobes. Ovules numerous, 

 anatropous, horizontal or pendulous. Capsule 6-valved. Embryo 

 small, enclosed in the abundant fleshy endosperm. 



Species about 200, widely dispersed through the temperate 

 and warmer regions of the whole world. 



ARISTOLOCHIA L. 



Leaves entire or lobed. Peduncles axillary, l-Howered, 



generally solitar}'. Bract none, or simulating a stipule. Perianth 



irregular, superior, utriculate round gynostemium, constricted 



and tubular above, ending in a two-lipped or entire limb, which 



is sometimes tailed. 



Leaves 3-lobed 1. A. trilohata. 



Leaves not .3-lobed. 



Perianth-limb 2-lipped 2. A. ringens. 



Perianth-limb not 2-lipped. 



Perianth-limb with a long tail 3. A. grandiflora. 



Perianth-limb not tailed. 



Perianth-limb cordate-oblong, mucronate 4. A. odoratissima. 

 Perianth-limb cordate-deltoid, obtuse .... 5. A. elegans. 



