Hopea.] XX. dipterocarpace^. 235 



Stamens 15, rarely 10 ; anthers ovate ; cells equal, connective 

 prolonged into a fine awn. Ovary 3-celled, cells 2-ovuled; style 

 cylindric. Fruit surrounded by the 5 enlarged sepals, free to 

 base, 2 outer wings long linear, 3 inner ones not longer than fruit, 

 connate in a cup at base, closely appressed to the small nut. Species 

 about 35, Indo-Malaya. 



The timber of Hopeas, known as Merawan, is light red and 

 rather soft. The Dammar (Dammar Mata Kuching) is clear and 

 transparent, as it is in Balanocarpus. 



i. Eu-HOPEA. Leaf-nerves 8 to 18 pairs. Inflores- 

 cence usually silky. 

 Leaves large, stiff coriaceous, ovate ; nerves 8 



pairs; flowers glabrous . . . . (i) H. nutans 



Leaves small, thin; nerves 10 to 18 pairs distinct 

 prominent ; flowers where known white silky 

 Leaves 4 to 5 in. long; fruit-wings 4 in. long . (-) H. nervosa 

 Leaves 3 in. long; fruit-wings 2-5 in. long 



oblanceolate . . . . . . (3) H. Cnrtisii 



Leaves thin, 3 in. long; fruit-wings linear-oblong. (4) H. globosa 

 Leaves stiff, ovate, 2"5 in. long; nerves 8 pairs, 

 faint . . . . . . . (5) H. albescens 



Leaves stiff ovate ; nerves 10 pairs; fruit-wings 



elliptic broad, i"5 by -5 in. long . . . (6) H. Lowii 



Leaves lanceolate, cuspidate; nerves 6 pairs . (7) H. multiflora 

 ii. Dryobalanoides. Leaves stiff ; nerves faint very 

 numerous, parallel. Inflorescence glabrous. 

 Leaves oblong-lanceolate, base shortly narrowed . (8) H. micrantha 

 Leaves elliptic-lanceolate, base cuneate . . (9) H. Pierrei 



Leaves broad ovate, base round, very smooth and 



stiff (10) H. Mengerawan 



Leaves small; branches, nerves on back, and in- 

 florescence pubescent . . . . (11) H. pubescens 



(i) H. nutans Ridl. 



I3ranches moderately stout, black glabrous. Leaves ovate- 

 elliptic stiffly coriaceous, glabrous base round broad, smooth 

 above; nerves elevate beneath about 8 pairs ascending; nervules 

 horizontal inconspicuous beneath, reticulations invisible, 5 in. long, 

 3-5 in. wide ; petioles -5 in. long. Panicle of 2 or 3 branches, 2 in. 

 long pubescent, fascicled in the axils. Flowers small, few, sessile, 

 nodding, glabrous. Sepals 2 outer oblong coriaceous, 3 inner 

 ovate, shorter and thinner. Petals oblong truncate, toothed at 

 the tip with i long and 2 short teeth. Stamens 15, very short; 

 awns longer than the anthers. Ovary conic, glabrous ; style short. 

 Fruit globose, glabrous, '25 in. long with a short point, outer wings 

 oblong; nerves 10, 2*25 in. long, "5 in. wide, inner wings ovate, 

 free to base, shorter than fruit. Hah. Forests, Pahang, Kwantan 

 (E. J. Hanbury, flowers). Ulu Rumpin (Foxworthy, fruit). Native 

 names : Giam (not the Giam of Sumatra) ; Bunga Merpak. 



I have little doubt that the fruiting specimen belongs to the same species 

 as the flowering one, as it agrees in foliage. The fruit very closely resembles 



