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7 
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A REVISION OF PHILIPPINE PIPERACEAE,. 445 
62. Piper parcirameum C. DC. in Elm. Leafl. Philip. Bot. 3 (1910) 777. 
MrinpAnao, District of Davao, Todaya (Mount Calelan), Elmer 11274. 
63. Piper crassinodum C. DC. 1. c, 776. 
Luzon, Province of Tayabas, Lucban, Elmer 7626, 8042. 
64. Piper parcipilum C. DC. sp. nov. 
Foliis breviter petiolatis, ovato-oblongis basi fere aequilatera obtusis, 
apice sat longe acuminatis acumine obtuso, utrinque parce hirtellis et 
adultis fere glabris, 5-plinerviis, nervo centrali fere 6 mm supra basin 
trifido sursumque nervulos validos et patulos mittente, nervo laterali 
adscendente utrinque a basi soluto; petiolo glabro basi ima vaginante ; 
stirpis masc. pedunculo glabro petiolum multo superante et temui; spica 
quam. folii limbus pluries breviore apice acuta, rhachi hirsuta, bractea 
glabra rotunda centro subsessili, staminibus 2, antheris ovatis filamenta 
longitudine aequantibus. 
Dioicum. Ramuli glabri, spiciferi 1 mm crassi, collenchyma sub- 
continuum partim libriforme, fasciculi intramedullares 1-seriati, canales 
lysigenes* plures quorum unus centralis alii peripherici, cellulae sclerosae 
interfasciculares cum phloemate fasciculorum periphericorum continuae. 
Limbi in sicco membranacei minute et inconspicue pellucido-punctulati, 
usque ad 11.75 cm longi et ad 34 mm lati. Petioli 6-10 mm, pedunculi 
15 mm longi. Spicae circiter 12 mm longae. Bracteae 0.75 mm 
diametro. 
Mrinpanao, Lake Lanao, Camp Keithley, Mrs. Clemens s. n., September, October. 
65. Piper Robinsonii C. DC. sp. nov. 
Foliis modice petiolatis elliptico-lanceolatis basi ima aequilatera acutis 
apice acute et sat longe acuminatis, utrinque crispule pubescentibus, 
5-plinerviis, nervis adscendentibus, neryo centrali a 4 mm supra basin 
trifido, nervo laterali utrinque a basi soluto; petiolo pubescente basi ima 
vaginante ; stirpis fem. pedunculo petiolum subaequante, supra in margine 
crispule pubescente, spica adhue juvenili quam folii limbus pluries 
breviore, rhachi pilosa, bracteae glabrae pelta rotunda, ovario libero 
glabro. 
Dioicum. Ramuli juniores crispule pubescentes, postea glabri, spiciferi 
1 mm crassi, longitudinaliter striati, collenchyma in fasciculos discretos 
dispositum et haud libriforme, canalis lysigenis unicus centralis. Limbi 
in sicco membranacei creberrime et minute pellucido-punctulati, usque 
ad 5.5 cm longi et 20 mm lati. Petioli 5 mm longi. Spica juvenilis 
in specimine viso usque ad 6 mm longa et 1.5 mm crassa. 
Luzon, Province of Laguna, Mount Banajao, Bur. Sci. 6065 Robinson, March. 
66. Piper ovatibaccum C. DC. in Elm. Leafl. Philip. Bot. 3 (1910) 778. 
Foliis breviter petiolatis, ovato- vel elliptico-lanceolatis, basi leviter 
inaequilatera in mare utrinque acutis, in femina utrinque acutis vel 
altero latere rotundatis, apice acute et sat longe acuminatis, supra 
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