A REVISION OF PHILIPPINE PIPERACEAE. 
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elongatos disposition, fasciculi intramedullares 1-seriati, canalis lysigenis 
'unicus centralis. Limbi in sicco rigidi pellucido-pnnctnlati et in femina 
pnnctis albidis conspersi, nsqne ad 13 cm longi et 4 cm. lati. Petioli 
3-5 mm longi, pedunCuli in mare 25 mm in femina 40 mm longi. Spica 
in mare 4.5 cm longa, 2.5 mm crassa, in femina 7 cm longa, 5 mm crassa. 
Bracteae pelta 0.75 mm diametro. Ovarium pellucido-glandulosum. 
Bacca 1.5 mm longa. 
Luzon, Province of Benguet, Baguio, Topping Ilf, January, For. Bur. 5081 
Curran, August, Williams 1091, June; Trinidad River, Bur. Sci. 5555 Ramos, 
December, Elmer 8375, 5850, fern.; Mount Pulog, Merrill 6530, masc., May. 
68. Piper obovatibracteum C. DC. in Elm. Lead. Philip. Bot. 3 (1910) 780. 
Luzon, Province of Tayabas, Lucban, Elmer 7927, May. 
69. Piper Mearnsii C. DC. sp. nov. 
Omnino glabrum, foliis breviter petiolatis, ovatis basi ima aequilatera 
acutis, apice subacute et sat longe acuminatis, 5-plinerviis nervo centrali 
fere a 7 mm supra basin nervum adscendentem opposite aut subopposite 
mittente, nervo laterali adscendente utrinque a basi soluto; petiolo basi 
ima vaginant.e pedunculo eum aequante, spica quam folii limbus pluries 
breviore, cylindrica, bracteae pelta elliptica centro brevissime pedicellata, 
staminibus 2 antheris globosis quam lilamenta multo brevioribus, ovario 
libero ovato, stigmatibus 4 linearibus. 
Prutex scandens. Bamuli spiciferi 2 mm crassi, collenchyma in 
f asciculos discretos dispositum et haud libriforme, fasciculi intramedul- 
lares 1-seriati, canalis lysigenis unicus centralis. Limbi in sicco mem- 
branacei crebre pellueido-punctulati, 8.5 cm longi, 47 mm lati. Bracteae 
pelta 1 mm lata. 
Luzon, Province of Tayabas, Casiguran, Bur. 8ci. 2987 Mearns, June. 
70. Piper Copelandii C. DC. sp. nov. 
Foliis modice petiolatis, elliptico-lanceolatis basi aequilatera acutis, 
apice longe et acute acuminatis, supra subtusque glabris, 7-plinerviis 
nervo centrali nervos adscendentes utrinque 2 opposite mittente, quorum 
supremi fere a 3 cm inferi paullo supra basin soluti, nervo laterali 
adscendente utrinque a basi soluto ; petiolo glabro basi im a vaginante ; 
pedunculo glabro petiolum paullo superante, spica quam folii limbus 
pluries breviore, cylindrica apice obtusa, rhacbi hirsuta, bracteae pelta 
orbiculari glabra centro pedicellata pedicello hirsuto, flore liermaphrodito, 
staminibus 2?, antheris ellipticis lilamenta fere aequantibus, connectivo 
producto apiculatis, ovario inferne in rhachi immerso et cum ea concreto 
supeme libero conico glabro-, stigmatibus 2 lateralibus lunulatis carnosis. 
Frutex in arboribus scandens. Ramuli glabri, spiciferi 1.75 mm 
crassi, collenchyma in f asciculos discretos dispositum et haud libriforme, 
fasciculi intramedullares 1-seriati, canales lysigenes plures quorum unus 
centralis, alii peripherici. Limbi in sicco membranacei crebre pellucido- 
