xi, c, 5 De Candolle: Piperaceae Philippinenses 223 



centralis. Limbi in sicco membranacei pellucido-punctulati, 8.8 

 cm longi, 3.5 cm lati. Petioli 1 cm, pedunculi usque ad 1.6 

 cm longi. Spica baccifera usque ad 15.5 cm longa, rhachis ca- 

 nali lysigeno unico centrali munita, bractea fere 5.5 longa et 

 apice 1 mm lata, bacca in sicco fuscescens, fere 4 mm longa. 



Luzon, Ifugao Subprovince, Mount Polis, Bur. Sci. 19819 McGregor. 



PIPER LOHERI C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 450. 



Luzon, Laguna Province, Calauan, Bur. Sci. 12421 McGregor: Rizal 

 Province, Montalban, Phil. PL 269 Merrill, Bur. Sci. 118J t Robinson. 



Forma c C. DC. forma nova. 



Limbo 5-nervio, rotundato-ovato-lanceolato basi aequilatera 

 acuto apice acute acuminato, usque ad 7 cm longo et 4-8 cm lato. 



Luzon, Union Province, Bauang, Bur. Sci. 12983 Fenix. 

 Forma b multiplinerve C. DC. 1. c. 



Luzon, Bulacan Province, Norzagaray, Bur. Sci. 12242 Foxworthy, fruit 

 orange. 



PIPER SAMARANUM C. DC. sp. nov. 



Ramulis glabris, foliis modice petiolatis glabris, limbo ovato- 

 lanceolato basi leviter inaequilatera utrinque acuto apice acute 

 acuminato, 5-plinervio nervo centrali nervos adscendentes 2 al- 

 terne vel opposite mittente quorum supremus a 1 cm supra 

 basin solutus, nervis lateralibus adscendentibus utrinque 2 a 

 basi solutis quorum externus aliis multo tenuior et brevior, pet- 

 iolo tenui basi vaginante; pedunculo glabro petiolum multo su- 

 perante, spica quam limbus fere duplo longiore, glabra, bractea 

 subobovato-oblonga inferne attenuata apice rotundata, baccis 

 condensis subglobosis, stigmatibus ovato-acutis. 



Dioicum. Hamuli in sicco cinerescentes, spiciferi 1.75 mm 

 crassi, collenchyma fere omnino libriforme in fasciculos discretos 

 dispositum, fasciculi intramedullares 1-seriati, canalis lysigenus 

 nullus. Limbi in sicco cinerescentes firmi inconspicue et minute 

 pellucido-punctulati, circiter 7.7 cm longi et 2.7 cm lati. Petioli 

 usque ad 0.7 cm, pedunculi 2 cm longi. Spica 13.5 cm longa, 

 bractea apice paullo ultra 1 mm lata, bacca 3.5 mm longa, in sicco 

 fuscescens. 



Samar, Bur. Sci. 17546 Ramos. 

 PIPER NIGRUM Linn, forma GLABRISPICA C. DC. forma nova. 



Stirpis masc. rhachi glabra. 



Mindanao, Butuan Subprovince, Lake Liluan, Weber. 

 PIPER ARBORISEDENS C. DC. sp. nov. 



Ramulis glabris; foliis modice petiolatis glabris, limbo subo- 

 vato-lanceolato basi aequilatera acuto apice acute et sat longe 



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