326 
gy. Pneumatophores not extremely large; 
growing along streams, toward upper 
limits of tide; lvs. membranous, nar- 
rowly elliptical; fis. with petals. 
Sonneratia acida. 
ec. Distinct pneumatophores not present. 
d. Lvs. alternate. 
e. Shrubs, often growing in edge of stream; fruit 
curved; fls. white. Aegiceras. 
f. Fl. cluster, simple, umbellate. 
Aegiceras corniculatum. 
f. Fil. cluster, much branched. 
Aegiceras floridum. 
ee. Trees or large shrubs. 
f. Bark reddish, smooth, thin; fruit, large, sphe- 
rical; lvs. compound; surface roots ribbon- 
like, sharp edged. Xylocarpus obovatus. 
_ ff. Bark dark colored or black and fissured; knee- 
rooted; fruit small and ribbed. — 
Lumanitzera, 
g. Often large trees; fis. brilliant scarlet. 
Lumnitzera littorea. 
gg. Small trees or shrubs; fils. white. 
Lumnitzera racemosa. 
dd. Lys. opposite; seedlings borne on tree. 
e. Prop-rooted; lvs. acuminate; sepals 4, reflexed from base 
of fruit; seedling cylindrical. Rdizophora. 
f. Fls. white, stalked, in axils of lvs. 
Rhizophora mucronata. 
J. Pls. pale yellow, not noticeably stalked, in axils 
_ of leafscars. Rhizophora conjugata. 
ee. Knee-rooted; lvs. usually acute; sepals not reflexed from 
base of fruit. 
f. Sepals 4-5, white, conspicuous, spreading from middle 
of ovary; seedlings ribbed; lvs. rounded at apex. 
Kandelia Rheedu. 
