2G2 NATURAL HISTORY OF PLANTS. 



petiolate penninerved ; stipules lateral; catkins axillary; floration 

 developed before leaves. (Florida.) — See p. 242. 



10(?). Didymeles Dup.-Th. — Flowers dioecious amentaceous; 

 surrounded by bracteoles ar sepals (?) ; males 2-androus ; filaments 

 short erect; anthers ovate extrorse, 2-rimose. Carpels 2, opposite 

 free ; germen of each 1-locular, attenuate above to long recurved 

 and revolute style, longitudinally sulcate and densely plumose- 

 papillose within. Ovule 1, descending ; micropyle extrorsely 

 superior; exostome far produced in tube dilated at apex. Fruit 

 consisting of drupes (?) 2, sulcate within ; seed descending ; coty- 

 ledons of exalbuminous embryo thick fleshy plano-convex ; radicle 

 superior. — A tree (?) ; leaves alternate petiolate entire penninerved 

 coriaceous ; catkins axillary and (?) terminal. (Madagascar.) — See 

 p. 244. 



Yl (?) MYEICE^. 



11. Myrica L. — Flowers dioecious or more rarely monoecious 

 amentaceous; males consisting of stamens 2-20, sessile in axil of 

 each bract or spicate, naked or surrounded by 2-oo bracteoles ; 

 filaments free or connate at base; anthers extrorse, 2-rimose. 

 Female flowers sessile in axils of scales of catkin, naked at base or 

 surrounded by 2 or a few sterile or rarely fertile bracteoles (bearing 

 abortive budlike flower in axil). Germen free, 1-locular; style 

 branches 2 (anterior and posterior), papillose-plumose within ; ovule 

 1, basilar or subbasilar orthotropous ; micropyle superior. Fruit 

 drupaceous ; exocarp rugose papillose and secreting a waxy matter ; 

 putamen more or less hard, 1-spermous. Seed erect; cotyledons of 

 straight exalbuminous or very scantily albuminous embryo thick; 

 radicle superior. — Small trees, shrubs or undershrubs, often odorous ; 

 leaves alternate, very rarely (Comptonia) stipulate, penninerved, 

 entire or dentate or serrate; catkins axillary generally springing 

 from innovation, simple or compound, either 1 -sexual, or androgy- 

 nous ; female flowers superior ; males inferior. (^All temj). and warm 

 regions.) — See p. 244. 



