OF THE DIPTEROCARPACEZ. 63 
D. Borneo and other Islands of Indian Archipelago. 
16. HOPEA GRISEA, sp. nova. Preter inflorescentiam glabra, 
ramulis longitudinaliter rugosis. Folia ovata, acuminata, 
coriacea, nitida, margine revoluta, nervis secundariis utrinque 
6-8 arcuatis conspicuis, nervis tertiariis parallelis. Inflores- 
centia griseo-pubescens. Stamina filamentis brevibus com- 
planatis, appendice antheras bis superante.  Pistillum ovario 
in receptaculo crasso obconico paullum immerso, stylopodio 
parvo glabro, stylo filiformi quam ovarium longiore. 
Borneo (Beccari, nn. 2232, 2267). 
Flower-buds just before opening l in. long, panicles shorter 
than leaves; blade 21-3 in., petiole 4 in. long. Fruit unknown. 
17. H. Lowrir, Dyer, MS. in Herb. Kew. 
Borneo (Lowe) ; Sumatra ( Teysmann). 
Similar in appearance to the preceding, but the petioles are 
shorter and the ovary is quite different, with a very short, broad, 
obtuse, hairy stylopodium, and a short glabrous style. Specimens 
too imperfect for adequate description. 
18. H. LONGIFLORA, sp. nova. Arbor glaberrima (nisi petala), 
ramis flexuosis lenticellatis. Folia crasse coriacea, e basi cordata 
lanceolato-faleata, nervis secundariis utrinque 10-12 arcuatis 
demum intramarginalibus, ne-vis tertiariis conspicuis parallelis 
et reticulatis. Flores breviter pedicellati. Calycis segmenta 
glabra, margine ciliata. Petala linearia, extus pilosa. Stamina 
connectivi appendice antheras equante. Ovarium superum cum 
stylopodio elongato-conico styloque cylindrico, glaberrimum. 
Borneo (Haviland, n. 2120; Beccari, n. 2811 (?)). f 
Blade 6-9 in. long, probably longer, petiole j in. Fl. i in. 
long. The 5 inner stamens on long, thick, cylindrical filaments. 
Anthers articulate with filaments, bend down, after the pollen 
has been shed. Fruit unknown. 
19. H. Hermrana, Zrandis.—Cotylelobium hopeifolium, Heim 
in Bull. Soc. Linn. Paris, i. (1891) 971. 
Borneo (Beccari, n. 2491). . 
A most interesting species, of which, however, neither perfect 
flowers nor fruit are available. Between the 10 pairs secondary 
a few shorter intermediate nerves, tertiary reticulate. Fi. pedi- 
cellate in unilateral racemes, which are distichous and regularly 
