- 43 — 



Fructus immatums, stellato-pilosus, turbinatus, alarum nervis vix 

 prominulis. Fructus maturus, sphaericus (diaiii. 14 — 18 mm.), laevis, 

 ylaucus, apico ])ruino~;us. calycis lobis i> accrescentibus;, coriaccis, 

 giabris, parum iuae(|aalibus, liuearibus-oblongis, e l)asi brevissime 

 aiigustatis, a\)ive paulum altouualo-rotundatis (130— 133 mm. long., 

 larg. 20 mm.), nervis primariis 3, subtus prominulis, ditissime ra- 

 mosis, calycis lobis 3 non accrescentibus, aec|ualil)us, ol)fusis (10 mm. 

 long., G — 7 mm. lat.). 



A spec, affin. : Dipterocarpo tiirbiiiato (laertii. f. (lin'ert f'oliis brovio- 

 ribus, e ])asi ciinciforinibns, nervis secundariis, numerosiorib\is, pilosis 

 nee scabris, frnctii sphaerico nee ellipsoideo, nervisque alarum latoralibiis 

 vix conspicuis. 



Jungle near Leiii Dan, a very tall tree wifb bare stem (u'^iilSa). 



2. U. angiistialndis Heim sp. nov. 



Rami novelli compressi, puberulo-grisei. Rami aduiti mox 

 glabri, fusco-grisei, multis lenticellis punctulati. Stipulae gemmae 

 acutae. angustae, fulvo-pilosae. Petioli longi, supra minute canali- 

 culati, pilis fulvis, adprossis, obtecti (25 — 40 mm. long.). 



Folia chartacea, in sicco fusca, obovato-oblonga, basi cuneato- 

 attenuata, apice attenuata, breviter acuminata (130 — IGOmm. long. 

 — 60 — 80 mm. larg.), margine leviter undulata nee nitida. in pagiiia 

 superiore pilis adpressis fulvis fugacibus, praecipue in nervo medio 

 et margine, ciliata, in pagina inferiore eisdem pilis nervus medius, 

 nervi secundarii (utrinque 12 — 15) prominuli, margine arcuati dense, 

 nervique tertiarii transversales, sparsim obtecti. 



Racemi, glabrescentes, nigrescentes, 5-floriferi. Flores? 



Fructus maturus sphaericus. apice paulum turbinatus, laevis, 

 apice leviter pruinosus (diam. 20 nmi.), calycis lobis majoribus 

 accrescentibus 3, chartaceis, giabris, aequalibus, longis, linearibus, 

 angustis, basi vix attenuatis, apice paulum attenuato-rotundatis (140 

 mm. long., 45 mm. larg.), nervis primariis 3, utrinque prominulis, 

 ditissime ramosis, calycis lobis non accrescentibus 3, subaequalibus, 

 obtusis (40 — 43 mm. long., 7— mm. larg.). 



Spec, affin. Dipterocarpo restito Wall., enjns fructus ignotus, difTcrl 

 praecipue fulvo-pubescentia nee stellato-canescentia. 



Jungle near Klong- Son, a tall tree (n°(>8()a). Tlie native name of tlii.s 

 tree i.s „ton yang''. 



Sect. Alati Dyer. 



3. U. alatiis Roxb. Hort. Beng. (1814) 42. V\. Ind. II. CM. 

 Jungle near Klong Sarlakjiet (n" 1¥1). 



Area: Pegu, Tenasserini, Siam, (;ain]in(li;i. (iDcliiiicliiiia. 



4. \), iiarvifoliiis Heim. sp. nov. 



Rami novelli compressi, fulvi. den.se tomentosi. Rami aduiti 

 mox glabri, nigrescentes, rugosi, lenticellis non conspicuis. Stipulae 



