100 dipterocarpe.t: of new guinea. 



Yatica papuana, Thjer. — Arbor, ramulis teretibiis, XDallidis, 

 Jglabris ; foliis oblongo-laiiceolatis vel oblongo-ellipticis, breviter 

 aciiminato-caiidatis, basi obtnsis, chartaceis ; pagina snperiore 

 glaberrima, opaca ; inferiore piibe stellulata parcissime tecta, costa 

 media fortiter, nervisque lateralibus ntriuque 17 modice promi- 

 nentibus ; stipulis lineaiibus, aciitis, uninerviis ; petiole brevi, 

 crasso ; florum partibus (pr^sertim calyce staminibusque) omnino 

 VaticcB ; fructibus . . . 



Eamoi, New Guinea, 1872, O. Beccari. 



Folia 9-13 poll, loiiga, 2^-4 poll, lata ; petiolo semi-pollicari. 

 Alabastra semi-pollicaria. 



In the absence of fruit, the exact affinities of this species must 

 remain doubtful. But the foliage characters approach those of 

 Y. Bassak, BL, from which, however, it is distinguished by the 

 form of the leaves, which are narrowly oblong and less abruptly 

 acuminate in T'. Bassak, with more numerous lateral veins (about 

 21), and a longer petiole. 



Hopea, sp. 7WV. — Calyce fructifero obscure puberulo, lobis 

 majoribus basi elliptico, limbo oblongo-spathulato, apice obtuso, 

 infi'a plus minusve abrupte coarctato, nervis crebris (ad 10) 

 perciu'so. 



Mount Arfak, New Guinea, 1872, O. Beccari. 



Omnia nisi fructus ignota. Calycis fructifeii lobi aucti 1^2 

 poll, longi, ^—| poll. lati. Capsula ^ poll, longa. 



Although I have only seen h-agmentary fruits of this species, I 

 have considerable confidence in its being otherwise unknown. 

 The fruits agree in general facies more closely than perhaps with 

 those of any other with an undescribed species from the Philip]jines. 

 Of this I add a description : — 



Hopea philippinensis, Vyer. — Arbor, ramulis ad angulum 45° 

 fere divergentibus, teretibus, siccitate rugosis, pallide fuscis, 

 novellis fusco-canescentibus ; foliis anguste oblongis, brevissime 

 caudato-acuminatis, basi paullo obliquis, obtusis, utrinque gla- 

 bemmis, costa media utrinque nervis lateralibus subtus pro- 

 minentibus ; petiolo brevissimo ; paniculis brevibus terminalibus 

 vel lateralibus ; floribus . . . . ; fi'uctu majusculo calyce accrete 

 cincte ; calycis lobis majoribus basi ovate tumido, limbe late 

 spathulato, apice rotundato, basim versus valde attenuate, nervis 

 8 per cur so. 



Phili2)pine Islands, H. Cuming, 879. 



Folia 4-6 poll, longa, 1^-2 poll, lata ; petiole I poll, lengo. 

 Calycis fructiferi lobi aucti 2-^-3 poll, longi, latitudine fere pellicares. 

 Capsula semi-poUicaris. 



The di-ied fruits assume the same rich chocolate -brown colour 

 which is observable in the New Guinea species. 



