AND TROPICAL AFRICA. 
159 
Nat. Ord. DIPTEROCABPE.E. 
Nov. Gen. Pachynocarpus, H. f. 
oblong 
Petala 5, linearia, obtusa, 
libera. Stamina 10, brevia, hypogyna, alterna longiora, filamentis brevibus incurvis, antheris oblongis, 
loculis discretis, valvis inaequalibus, connectivo in conum brevem obtusum producto. Ovarium lat. 
depresso-ovatum, stylo brevi columnari, stigmate trilobo, loculis 3, ovulis geminis ex apice loculi 
pendulis. Fructus crasse coriaceus, brevi- urceolatus, ultra medium tubo adnato calycis incrassato 
5-lobo margine tumido inclusus, apice umbonatus, unilocularis, evalvis, 1-spermus. Semen pen- 
dulum, testa tenui endocarpio adhaerente, cotyledonibus con voluto-lobatis.— Arbor elata, Borneensis. 
Rami teretes, lignosi, cortice sulcato pallido. Folia petiolata, oblong a ovato-lanceolatave, obtuse 
acuminata acutave, integerrima, coriacea, glaberrima, 4-6" longa, l£-3" lata, venis sub 6 lente 
arcuatis, venulis exemplarium floriferorum prominulis reticulatis, fructiferorum obsoletis. Paniculie 
axillares terminalesque, 1-3" longa, laxe ramose, ramis gracilibus, pedunculis pedicellisque cinereo- 
pubescentibus. Flores £" longi. Sepala £" longa, pubescentia. Petala sepalis quadruplo longiora, 
dorso puberula. Ovarium obscure 5-lobum, pubescens. Fructus singularis, f" diam., perkarpio 
resince alba scatente. 
1. Pachynocarpus umbonatus, H. f. 
Motley. Norn, vern 
Mr. Motley states this to be a large tree with soft white wood, and deliciously fragrant 
flowers, and that the fruit yields a fragrant oil. The habit and inflorescence of Pachy- 
nocarpus resemble Vatica very closely ; hut the fruit is very different, being surrounded 
by the adnate 5- grooved tube of the calyx. 
1 ab. XXII. A. flowering, and B. fruiting specimen, of the nat. size; fig. 1. unexpanded, and 2. expanded 
flower ; 3. the same, with petals and two calyx-lobes removed ; 4 and 5. stamens ; 6. transverse section 
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magnified. 
Dipterocarptjs, G&ertn. 
1. D. lamellatus (H. f.) ; ramulis petiolisque gracilibus dense tonientosis, foliis oblongis 
acuminatis suhtus dense stellatim tomentosis, fructu crehre lamellato lamellis undu- 
latis, calycis lobis foliaceis late linearibus apice rotundatis. 
Hub. In insula Labuan, ora septentrionali ins. Borneo, Motley. 
-D. Baudii, Korth., affinis, differt fructu lamellato.— Folia juniora 3" longa, petiolo gracili 1" longo, 
densissime fulvo-tomentoso, margine sericeo-piloso, pagina superiore pilosa, demum glabrata, infe- 
riore pilis stellatis praesertim ad venas operta. Fructus purpureus, 6" longus. Calycis tubus globosus, 
I diam.; laciniae duae, venosas, fere l" lata?. 
D. Motleyantts (H. f.) ; ramulis validis, ultimis pulvereo-puberulis, foliis longe gracili- 
petiolatis ovatis basi rotundatis late cuneatisve acuminatis obscure undulatis glaber- 
rhnis, venis utrinque sub 16, costa subtus sericea, calyce oblongo tetraptero, petalis 
dorso cinereo-pubescentibus. 
Hab. In ins. Labuan, ora septentrionali ins. Borneo, Motley. Ins. Philippinens., Cuming (No. 1073). 
Hamuli crassit. pennje olerinse, apicibus cinereis v. fulvis. Folia rigidiuscula, 8-10" longa, 4" lata, venis 
primariis cum costa rectangulum formantibus. Pedunculi 2-3-flori, flexuosi, 3-4" longi, graciles, 
glaberrimi, flexuosi. Calyx glaberrimus, fere l" longus. Corolla l£ w longa, petalis V' latis. 
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