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A REVISION OF PHILIPPINE PIPERACEAE. 457 
2cm longa. Bracteae pelta 1 mm diametro. Bacca 5 mm longa glabra. 
Planta in sicco aromatica. 
Luzon, Province of Rizal, Binangonan, Warburg 13317. 
89. Piper marivelesanum C. DC. in Perk. Frag. Fl. Philip. (1905) 155, emend. 
Foliis modice petiolatis, oblongo-ovatis, superis basi subaequilatera 
cordulatis obtusisve, apice sat longe acuminatis, junioribus supra ad 
nervum centralem subtus ad nervos omnes vel ubique parce hirtellis, dein 
glabris, 5—7-plinerviis, nervo centrali nervos 2 adscendentes subopposite 
mittente quorum supremus a 1 cm supra basin solutus, nervis lateralibus 
adscendentibus utrinque 1 vel 2 a basi solutis; petiolo basi ima vaginante 
pedunculoque eum multo superante subdense hirtellis, spica quam folii 
limbus pluries breviore, bracteae pelta glabra rotunda centro pedicellata 
pedicello rhachique hirsutis; ovario glabro libero stigmatibus 4 linearibus, 
bacca matura globosa glabra, stipitem suum glabrum paullo superante. 
Dioicum, scandens. Ramuli juniores hirtelli, spiciferi vix 2 mm 
erassi, collenchyma subcontinuum zona interna libriforme, fasciculi intra- 
medullares 1-seriati, canalis lysigenis unicus centralis. Limbi in sicco 
membranacei crebre et minute pellucido-punctulati, superi usque ad 11.5 
em longi et 4 cm lati. Petioli usque ad 8 mm, pedunculi usque ad 20 
mm longi. Spicae usque ad 4 em longae. Bracteae pelta circiter 0.75 
mm diametro. Bacca usque ad 4 mm longa. 
Luzon, Province of Bataan, Mariveles, Warburg 13640; Lamao River, Mount 
Mariveles, Merrill 3727, 3786, altitude 600 to 1,000 m, For. Bur, 2507 Meyer, For. 
Bur. 1756 Borden, Williams 369, 370, Whitford 1060, For. Bur. 165 Barnes: 
Dinalupijan, Merrill 1579: Province of Benguet, Sablan, Elmer 6161: Province of 
Rizal, Bosoboso, Bur. Sci. 1115 Ramos: Province of Tayabas, Lucban, Elmer 9330: 
Province of Camarines, Maagnas, Bur. Sci. 6327 Robinson. MINpoRo, Bongabong 
River, For. Bur. 3668 Merritt. M1npANAo, District of Davao, Davao, Copeland 
501. 
90. Piper basilanum C. DC. sp. nov. 
Foliis breviter petiolatis, ovatis, basi aequilatera rotundatis, apice 
obtusiuscule et sat longe attenuatis, supra in nervo centrali basi parce 
hirtellis subtus ubique hirsutis, 5-plinerviis, nervo centrali a 5-8 mm 
supra basin trifido, nervo laterali adscendente utrinque a basi soluto; 
petiolo hirtello basi ima vaginante ; stirpis fem. pedunculo glabro petiolum 
multo superante, spica quam folii limbus triplo breviore, rhachi hirsuta, 
bracteae pelta glabra rotunda pedicello hirsuto brevi et crasso, ovario 
libero ovato glabro, stigmatibus 3 ovatis brevibus, bacca submatura 
stipitem suum superante. , 
Dioicum, scandens. Ramuli glabri, spiciferi fere 1.5 mm crassi, col- 
lenchyma continuum haud libriforme, fasciculi intramedullares 1-seriati, 
canalis lysigenis centralis et canales peripherici. Limbi in sicco mem- 
branacei sparsim pellucido-punctulati, superi usque ad 10.5 cm longi et 
