Ridley. — On the Dispersal of Seeds by Wind . 357 
it. The fruits are very light, and seem to drift, much further than those 
of the Dipterocarpeae and Terminalia . 
Ventilago leiocarpa , Benth. A climber to about 50 or do feet on 
forest trees ; has small linear-oblong fruits about 2 inches long and a 
quarter of an inch wide, with a seed at one end. The fruits are very light 
and thin, and fly about 40 yards, seldom further. 
The following are the plants with winged fruits known to me from the 
Malay Peninsula : — 
I. Trees : 
Trigoniastrum. Small tree. 
Sterculia , 5 . scaphigera, S . campanidata. Not very common. Distri- 
bution, Cambodia. 
Tarrietia. Very large trees, fruits rather heavy. 
Pent ace. Several species. 
Pteleocarpa. Medium tree, local. Fruits like those of Terminalia 
snbspathidata. Edges of forests. 
Dodonaea . Shrub ; open sandy places and sea-shores ; widely spread. 
Melannorhoea . Fruits with wings, widely spreading ; common in dense 
forests. Those with no or abortive wings rare. 
Parishia. Fruits winged like a Shorea ; local. Big tree. 
Dipterocarpeae. All but Retinodendron, Vatica (most) ,and Balanocarpns. 
Kumpassia . Gigantic tree, common and widely spread. 
Peltophorum . Medium-sized tree, abundant, open country only, never 
in forests. 
Albizzia. Big tree, open country, introduced. 
Terminalia subspathulata , King. 
Homalium. Scarce, rarely fruiting. 
Englehardtia . Tall tree, scarce. 
II. Climbers : 
Securidaca. Very rare. 
Ancistrocladus. Common, fruits like Shorea , abundant in open sandy 
places by the sea. Low scanclent shrub. 
Hiptage. Open country, usually rather a low climber. 
Aspidopterys . Fruit as in Terminalia subspathulata ; woods and river- 
banks. 
Cardiopteris. River-banks, rare. 
Ventilago. Climber, forests. 
Gouania. Low climber, open country. 
Spatholobus , K mistier ia , Derr is , Dalbergia (several species). 
Mezoneurum. All edges of woods, open country, rarely in dense forest. 
Combretums , Calycopteris and some Illigera , Sphenodesma. Open wood 
edges, and thickets. 
Lino stoma. Usually edges of forest. 
