AND TROPICAL AFRICA. 159 



Nat. Ord. DIPTEROCARPEiE. 

 Nov. Gen. Pachtnocakptjs, H. f. 



Calyx 5-partitus, laciniis oblongis obtusis, tubo demum cum fructu adnato. Petala 5, linearia, obtusa, 

 libera. Stamina 10, brevia, hypogyna, alterna lougiora, filamentis brevibus incurvis, antheris oblongis, 

 loculis discretis, valvis insequalibus, connective in conum brevem obtusum producto. Ovarium late 

 depresso-ovatum, stylo brevi columnari, stigmata 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 convoluto-lobatis. — Arbor elata, Borneensis. 

 Rami teretes, lignosi, cortice sulcata pallida. Folia petiolata, oblonga ovato-lanceolatave, obtuse 

 acuminata acutave, integerrima, coriacea, glaherrima, 4-6" longa, 1^-3" lata, venis sub 6 lente 

 arcuatis, venulis exemplarium floriferorum prominulis reticulatis, fructiferorum obsoletis. Paniculae 

 axillares terminalesque, 1-3'' longce, laxe ramosm, ramis gracilibus, pedunculis pedicellisque cinereo- 

 pubescentibus. Flores 5" longi. Sepala a" longa, pubescentia. Petala sepalis quadruplo longiora, 

 dorso puberula. Ovarium obscure 5-lobum, pubescens. Fructus singularis, |" diam., pericarpio 

 resinas alba scatente. 



1. Pachtnocarpus umbonatus, H. f. 



Hab. In insula Labuan, oi-a septentrionali Borneo, Motley. Nom. vern. " Rasak bunga " v. " Rasak ranga." 

 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 Fachy- 



nocarpus resemble Vatica very closely ; but the fruit is very different, being surrounded 



by the adnate 5- grooved tube of the calyx. 



Tab. XXII, A. flowering, and B. fruiting specimen, of the nat. size ; fig. 1. unexpanded, and 2. expanded 

 flower J 3. the same, with petals and two calyx-lobes removed ; 4 and 5. stamens ; 6. transverse section 

 of ovary ; 7- vertical section of one half of ovary ; 8. vertical section of fruit with seed removed : 

 all magnified. 



DiPTEBOCAKPUs, Gaertn, 



1. D. LAMELLATUS (H. f.) ; ramulis petiolisque gracilibus dense tomentosis, foliis oblongis 



acuminatis subtus dense stellatim tomentosis, fructu crebre lamellato lamellis undu- 



latis, calycis lobis foliaceis late linearibus apice rotundatis. 

 Hub. In insula Labuan, ora septentrionali ins. Borneo, Motley. 

 D. Baudii, Korth., aftinis, 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 prtesertim ad venas operta. Fructus purpureus, 6" longus. Calycis tubus globosus, 



I" diam.; lacinias duse, venosffi, fere 1" latae. 



2. D. MoTLETANUS (H. f.) ; ramulis validis, iiltimis pulvereo-puberulis, foliis longe gracili- 



petiolatis ovatis basi rotundatis late cuneatisve acuminatis obscure undulatis glaber- 

 rimis, venis utrinqiie 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). 



Ramuli crassit. pennse olerinse, apicibus cinereis v. fulvis. Folia rigidiuscula, 8-1 0" longa, 4'' lata, venis 

 primariis cum costa rectangulum formantibus. Pedunculi 2-3-flori, flexuosi, 3-4" longi, graciles, 

 glaberrimi, flexuosi. Calyx glaberrimus, fere 1" longus. Corolla \V' longa, petalis |" latis. 



