MALVACE&. 125 



GENERA. 



I. STEKCULIE.E. 



1. Sterculia L. — Flowers polygamous, generally 5-merous • calyx 

 often petaloid, 5-fid or 5-partite, subcampanulate or subtubular, 

 clavate or valvate. Corolla ; stamens 10- xi ; anthers sessile, 

 extrorsely rimose, inserted without order at the summit of the erect 

 column, sometimes incurved in bud. Carpels 5 (in female flowers 

 small and sterile), opposite lobes of calyx ; ovaries free 2-co -ovulate ; 

 styles more or less joined together above, thickened stigrnatiferous at 

 apex. Fruit carpels distinct, stellate-patent, either ligneous or 

 coriaceous, within folliculate rimose, or very thinly membranous, 

 immediately or even before maturity dehiscing patulous. Seeds 1-co , 

 naked or winged ; albumen fleshy, 2-parted, adhering more or less to 

 the exterior of the cotyledons ; cotyledons of thick embryo flat, or 

 plano-convex, sometimes sub undulate ; radicle short, opposite hilum, 

 nearly or partly lateral. — Trees ; leaves alternate, entire, lobed or 

 digitate ; stipules usually small ; flowers often in axillary, simple, 

 or much oftener ramified racemose cymes ; central flower in cymes 

 often female and early developed {All the Tropical and Subtropical 

 regions of the Globe). See p. 61. 



2. Tarrietia Bl. — Flowers nearly of Sterculia, 1-sexual, 5-me- 

 rous. Stamens 10-15, very much congested. Carpels 3-5, 1-ovu- 

 late, samaroid at maturity, stellate-patent, indehiscent, dorsally 

 produced into a wide-spreading falcate wing. Seed anatropous, 

 albumen of Sterculia. — Lofty trees ; leaves digitate, 3-5-foliolate, gla- 

 brous or lepidote ; flowers small in much ramified axillary or lateral 

 cymiferous racemes {Australia, Java). See p. 64. 



3. Cola Bauh. — Flowers nearly of Sterculia, 5- or more rarely 

 4-6-merous; staminal column bearing at summit 10-15-anthers, 

 on simple annulate adnate series ; cells parallel or superposed. 

 Carpels 5-15, go -ovulate, swollen at maturity, inwardly rimose. 



