- 326 - 

 OiPLACHNE TECTONETiCOLA Backer, nov. spec. 



Diplachne paniculâ e racemis 3-7 composita, racemis solitariis, 

 strictis, 10-30-spiculatis, spiciilis bifariis erectis, 7 — 11-floris, glumis 

 fertilibus infra médium laxe ciliatis, apice emarginatis, in sinu distincte 

 aristatis, nervis lateralibus haud in denluium excurrentibus, paleis in nervis 

 dense breviterque cilatis, ciilmis dense confertis erectis tenuibus glabris 

 foliis anguste linearibus acutissimis supra minute setulosis vel verruculosis 

 subscabris, subtus laevibus, margine scaberrimis ligula brevissima, vaginis 

 glabris, ligula vix conspicua. 



D e s c r. fus. Pedunculus demum longe e vagina suprema exsertus, 

 paniculâ erecta, vaga, e racemis 3 — 7 primum erectis deinde erecto-patentibus 

 composita, racemi solitarii, inferiores inter se satis longe distantes superiores 

 magis approximati, omnes scaberrimi, 3'/2— 17 cM longi, 10 — 30-spiculati. 

 Spiculae bifariae inter se modice remotae erectae, pedicello ^/j — IVamM 

 longo suffultae, 7 — 11-florae, racliis ad basin glumarum fertilium breviter 

 barbata. Gluma prima 2 — 21/2 m^ longa, acuta, pellucide alba vel purpurea, 

 carinâ viridi minute denticulatâ percursa. Gluma secunda 3- 3'/2 mM longa 

 acuta vel breviter mucronata, ceterum primae consimilis. Glumae fertiles 

 demptis aristis, 2^/4 — 3 mM longae, emarginatae, in sinu aristam rectam 

 tenuem 'A — 2V2 "iM longam lobos longe superantem ferentes, nervis 

 lateralibus haud e margine excurrentibus, margines basin versus sparse 

 ciliatae, glumae alioquin glabrae. Paleae glumis breviores in nervis breviter 

 denseque ciliatae, lodiculae ± '/^ niM longae, antherae ±2/4 mM longae, 

 caryopsis oblonga basi obtusa diaphane luteo-brunnea, + l'/2 m^ longa. 



Herba probabiliter perennis, saepe gregaria, 0,30 — 0,75 M alta, culmi 

 dense caespitosi, erecti stricti tenues compressi, farcti vel basim versus 

 fistulosi, vaginae glabrae, ligula vix conspicua '/4 — ''2 mM longa, lamina 

 viridis vel purpureo-suffusa anguste linearis, acutissima 14—35 cM longa 

 3—7 mM longa siccando cito et valde involuta, marginibus scaberrimis, 

 supra setulis verruculisve minutis obsita, subscabra, subtus, costâ excepta 

 glabra, laevis. 



The species differs from ils Asiatic and Australian congeners by the 

 distincty awned fertile glumes, the very short ligules and the small number 

 of racemes. 



H a b. Java occidentalis, in tectonetis, Beumee No. 4716. 

 Kangean, in tectonetis, Backer No. 27726, 27780. 



VHI. GENTIANA SINGGALANGENSIS Backer, nov. Spec. 



G. recurvata Boerl. (haud Clarke) in Flora Ned. Indië 11,470. 



Qentiana floribus terminalibus solitariis vel saepius in cymam laxi- 

 usculam unitis longiuscule pedicellatis 5-meris, calyce fere ad médium 



