DIPTEBOCABPACEJJJ. 221 



GENERA. 



I. DRYOBALANOPSE^. 



1. Dryobalanops (Lertn. — Flowers hermaphrodite, receptacle 

 rather concave. Sepals 5, slightly connate and perigynous at base, 

 subequal imbricate. Petals 5, alternate, sometimes very slightly 

 coalescing at base, contorted. Stamens co, co-seriate ; filaments 

 short ; anthers introrse ; cells 2, linear ; valves equal, connective 

 apiculate. Germen free, almost entirely superior, 3-locular ; style 

 slender entire, apex stigmatiferous not thickened ; ovules in each 

 cell 2, collaterally descending ; micropyle extrorse superior. Fruit 

 capsular subligneous semi-included in accrescent base of calyx, lobes 

 subequal, wing-shaped accrescent; pericarp finally 3-valved at apex. 

 Seeds 1 or more rarely 2 ; cotyledons of embryo exalbuminous, fleshy, 

 very unequal, contortuplicate, the larger involving the smaller; radicle 

 superior thick, vertical, pericarp intruded in false dissepiments between 

 folds of embryo and laterally sub-2 -winged. — A glabrous resinous 

 camphorous tree ; leaves alternate petiolate entire coriaceous, crowded 

 lineate-penninerved ; stipules minute or scarcely seen ; flowers at the 

 summit of twigs or in axils of upper leaves, cymose-racemose ; each 

 2-bracteolate {Indian Archipelago). See p. 210. 



2. Dipterocarpus G.ertn. f. 1 — Flowers outwardly irregular; 

 summit of receptacle usually slightly concave. Calyx free, gamose- 

 palous ; tube free, 5-fid or 5-dentate at apex; lobes very unequal*; 

 larger generally 2 ; all when young slightly imbricated ; afterwards 

 valvate or open. Corolla contorted and stamens go, slightly 

 perigynous (of Dryobalanops) ; anthers elongated, cells linear introrse 

 rimose ; connective more or less produced beyond cells, acuminate. 

 Germen inferior at base 3-locular (of Dryobalanops), style slender, 

 apex entire or shortly 3-dentate. Fruit dry subwoody, indehiscent, 



1 Ft net., iii. 50, t. 187, 18S. — Endl., Gen., DC, Prodr., xvi. 606. — Pterygium, Cork., in 



n. 5393. — Spach, Suit, a Buffon, xiii. 303. — Ann. Mus., viii. 397, t. 6. — ? Caryolobia Gjertn., 



Endl., Gen., n. 5392.— B. H., Gen., 191, 981, Fruct., i. 215, t. 45 (ex Esbl.). — Mocanera 



n. 2. — II. Bx., in Payer Fam. Nat., 273.— A. Blanc. (Nee. J.). 



