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4. Pi'.ntacmf, A. DO; 
C41abrons or pnbemlous resinous trees. Leaves broad, entire, penui- 
nerved, with obtuse or cordate bases. Flowers Urge, panieled. Cahp> 
tube short, the lobes imbricate, 2 being quite external. Stamens 15, 
t lie filaments short, dilated; anthers much larger than the filaments, 
elongate, linear ; the valves 4, sub-eqnal, each subulate at its apex, 
the connective also prolonged into a stiff deflexed arm as long as the 
nppendages of the anther-valves. Ovary free ; the style filiform, the 
stigma slightly lobed. Fruit enclosed within the imbricate calyx- 
lobes, of which two or more have elongated membranous reticulate 
many-nerved wings. Species 3,— Burmese, Siamese, and Malayan. 
1. Pkxtacmb malayana, King, n. sp. A tree 40 to 50 feet high : 
young branches rather stout, dark-coloured, glabrous. Leaves sub- 
coriaceous, rotund-ovate to broadly elliptic, the apex shortly and blunt- 
ly acuminate, the base rounded or slightly emarginate ; both surfaces 
glabrous, pale when dry ; main nerves 15 to 18 pairs, spreading, pro- 
minent on both surfaces ; length 5 to 7 in., breadth 275 to 4'5 in., 
petiole -75 to 11 in. Panicles axillary, lax, few-flowered, 2*5 to 5 in. 
long. Flowers '75 in. long and about as much in diameter when open, 
pedieellcd. Calyx-lobes more or less broadly ovate, acuminate, minutely 
tomentose outside. Petals three times as long as the calyx, elliptic, 
spreading, pubernlous on one-half outside, and glabrous on the other, 
quite glabrous inside. Stamens 15, equal, erect, the filaments short and 
broad ; the anthers elongate, narrow,, with 5 apical awns, one of whieli 
is deflexed and rather Bborter and thicker than the other four. Ovary ovoid, 
sub-glabrous, much shorter than the filiform style : stigma minute. 
Pipe fruit ovate, apicnlate, 1 in. long, glabrous ; calyx-wings all enlarg- 
ed and reticulate except at the base ; the three outer narrowly oblong, 
obtuse, and narrowed to the concavo base, 9-nerved, 4 to 4 5 in. long, and 
•65 to '75 in. broad ; the two inner lobes much narrower and fewer- 
nerved, about 2*5 in. long, or even shorter. 
Langkani ; Curtis, No. 2095. 
The petals of this species are spreading, and the flower has quite an 
unusual fades for the order. It is at once distinguished by its curiously 
5-awned anthers. Four of these awns are the produced apices of the 
anther cells, the fifth (the thicker and deflected one) is a prolongation 
from the connective. 
5. Shorea, Roxb. 
Glabrous, mealy, or pubescent resinous trees. Leaves entire or 
sub-repand, pinnate- veined ; stipules large, coriaceous and persistent, or 
minute and fugacious. Flowers in axillary or terminal, lax, cymoso 
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