150 



FLOKA OF JA^IAICA 



Pisonia 



and capitate or multitid exserted stigma ; stameus short and 

 sterile. Anthocarp indurated or somewhat fleshy on the outside. 

 Utricle elongated or ellipsoidal, membranous. Testa of seed 

 hyaline, adhering to pericarp ; embryo straight ; cotyledons 

 broad, thin, enclosing endosperm, twisted and plaited or con- 

 duplicate. 



Fi"-. 51. Pisonia aculeata L. 



A, Portion of male, flowering branch x g. 



B, Male flower x 5. 



C, Female flowerx 5. 



D, Do. with part of the perianth removed 



X 5. 



E, Fruit X 2. 



F, Fruit cut across x 5. 



G, Embryo. 



e, endosperm ; c, cotyledons ; r, radicle. 



Species about 30, mostly natives of tropical America, a few 

 indigenous in Asia, Polynesia and Madagascar. 



1. Fruit oblong-clavate, 5-angled, with rows of glutinous 



papillse along the angles 1. P. aculeata. 



2. Fruit ellipsoidal, fleshy on the outside, not glandular. 



Leaves leathery, veins densely reticulate, pro- 



minulous especially beneath 2. P. obtiisafa. 



Leaves thin, veins indistinct, flat or impressed. 



Panicle solitary, terminal, erect 3. P. fragrans. 



Panicles or racemes, 2 or more together, 



axillarv 4. P. discolor. 



