A REVISION OF PHILIPPINE PIPERACEAE. 
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limbi dimidium paullo breviore dense baccifera, rhachi hirsuta, bracteae 
pelta rotunda glabra pedieello brevi crasso et hirsuto, ovario libero ovato- 
oblongo, stigmatibns 4 vel 5, ovato-acutis, bacca subglobosa stipitem 
suum paullo superante. 
Dioicum, seandens. Ramuli glabri, spiciferi 1 mm crassi, collenehyma 
libriforme continuum zonam tenuissimam f ormans, fasciculi intramedul- 
lares 1-seriati, canalis lysigenis centralis canalesque peripherici. Limbi 
in sicco firmo-membranacei minute et inconspicue pellucido-punetulati, 
10.5 cm longi, 3.5-4 cm lati. Petioli usque ad 7 mm longi. Stigmata 
sessilia. Bacca 3 mm longa in sicco nigra. 
Mindanao, Lake Lanao, Camp Keithley, Mrs. Clemens s. n., March. 
85. Piper dipterocarpinum C. DC. sp. nov. ' 
Foliis breviter petiolatis, elliptico-lanceolatis, infeme attenuatis et 
basi aequilatera acutis, apice longe et acute acuminatis, utrinque glabris, 
5-plinerviis, nervo centrali fere* a 8 mm supra basin trifido; nervo laterali 
adscendente utrinque a basi soluto; petiolo basi ima vaginante pedun- 
culoque eum multo superante tenuibus et glabris; stirpis fern, spica 
quam folii limbus pluries breviore, rhachi dense hirsuta, bracteae glabrae 
pelta rotunda centro subsessili, ovario libero glabro, stigmatibus 4 vel 5 
linearibus acutis, bacca immatura elliptica stipitem suum aequante. 
Dioicum, seandens. Ramuli glabri, spiciferi 1.5 cm crassi, collenehyma 
libriforme zonam tenuem formans, fasciculi intramedullares 1-seriati, 
canalis lysigenis centralis, canales peripherici rari. Limbi in sicco 
membranacei minute pellucido-punetulati, superi usque ad 12 cm longi 
et 3.5 cm lati, inferi ovati basi et apice ut superi usque ad 16 cm longi 
et 7.5 cm lati. Petioli 5 mm, pedunculi 12 mm longi. Spicae 3 cm 
longae. Bracteae pelta 0.75 mm diametro. 
Mindanao, District of Zamboanga, near Port Banga, For. Bvr. 91J/6 Whitford, 
January, in dipterocarp forests, altitude about 20 m. 
86. Piper dagatpanum C. DC. in Perk. Frag. FI. Philip. (1905) 154, emend. 
Foliis modice petiolatis, ovatis vel oblongo-ovatis, basi leviter in- 
aequilatera rotundatis vel subrotundatis, apice modice et acute acuminatis, 
utrinque glabris, 9-ninerviis, nervo centrali nervos adscendentes utrinque 
2 mittente quorum supremus fere a 2 cm supra basin solutus, nervis 
lateralibus 2 utrinque a basi solutis ; petiolo glabro fere usque ad medium 
vaginante; stirpis fern, pedunculo glabro petiolum sat superante, spica 
quam folii limbus dimidio breviore; rhachi hirsuta, bractea glabra 
rotundato-obovata late sessili, ovario libero glabro, stigmatibus -4 line- 
aribus, bacca subglobosa stipitem suum paullo superante. 
Dioicum, seandens. Ramuli inferi sat longe pilosi, superi glabri, 
laeves, cylindrici, spiciferi 1.5 mm crassi, collenehyma continuum, sparsim 
et parce libriforme, fasciculi intramedullares 1-seriati, canales lysigenes 
plures quorum unus centralis alii peripherici. Limbi in sicco mem- 
