POLYOALAOE^. 91 



late, furnished with long hairs ; embryo albuminous ; cotyledons 

 orbiculate thin. — Shrubs ; leaves alternate ovate ; flowers ^ in short 

 axillary few-flowered racemes. {Trop. W. Africa?') 



9. Trigoniastrum Miq.^— " Sepals 5, of which two are slightly 

 wider. Petals dissimilar ; the lateral narrowly unguiculafce-spathu- 

 late ; keel navicular,* gibbous saccate at base ; 2 at base extrorsely 

 auriculate-semicordate, higher connate at margin, and concealing 

 generative organs. Stamens 5, coalescing in sheath, which is 

 afterwards cut; anthers ellipsoidal, 1-locular, introrsely adnate. 

 Glands (?) ^ 2, subrotund-lenticular anterior in the neighbourhood of 

 thegermen, strictly enclosed in saccate base of keel. Germen 3-locular ; 

 style simple ; stigma small ; ovules in cell solitary pendulous from 

 vertex. Fruit dry, 3-winged, in 3 carpels, samaroid, finally 

 deshiscing inwardly, separating. Seed solitary in cell, pendulous 

 hairy estrophiolate. . . — A shrub ^ ; leaves alternate, coriaceous, 

 entire ; racemes at apex of branches paniculate ; bracts glandular ^ " 

 {Sumatra^ Penang.^) 



11. XANTHOPHYLLE^. 



10. Xanthophyllum Roxb. — Plowers irregular hermaphrodite ; 

 sepals 5, imbricate ; the interior slightly larger. Petals 5, free or 

 connate at base, imbricate ; the posterior 4, rarely unequal ; the 

 anterior (keel) larger cymbiform. Stamens 8, either all free or 

 cohering in pairs with petals at the base ; anthers introrse 2-locular, 

 shortly rimose at apex. Germen surrounded at base with annular 

 glandular disk, 1-loculate ; placentas 2, parietal, laterally more or less 

 prominent; ovules in each 2-6, descendent or variously oblique; 

 style incurved, stigmatiferous sub-entire at apex. Fruit globose, 

 coriaceous-fleshy, usually 1-spermous; seed exarillate, exalbuminous ; 

 embryo fleshy ; cotyledons thick-fleshy, plano-convex, at apex some- 

 times corrugate-plicate; radicle short, sub-enclosed between coty- 



1 White or yellow. » " Oorpusoula 2 " (B. H.). 



« Spec. 2, Benth. Niger, 224.— Oliv. Fl. « Scandens f 



Trop. Afi: i. 135.— Walp. Mep. i. 247 (Spec. ? Char, ex B. H he. cil. 



3, 4). 8. Spec. 1. T. hijpohucum Mia. log. cit. — 



^ Fl. Ind.-Bat. SvL-^^\. i. 394. — B. H. Gen. B.ootl. t. Fl. Srit. Ind.i. 'iOS.—Isopterispenaii- 

 lSd, n. 10. — Isopteris Wall, Cat. n. 7261. giana Wall. loe. cit. 



* "Postica?" (B.H.). 



