, ron- 
452 DE CANDOLLE. 
canalis lysigenis centralis canalesque peripherici plures. Limbi in sieco 
membranacei creberrime pellucido-punctulati, 10-11 em longi, 4—4.5 cm 
lati. Petioli fere 11 mm, pedunculi 15 mm longi. Bractea 4 mm longa, 
1mm lata. Species P. nigro proxima, an hujus forma spontanea ? 
MINDANAO, District of Davao, Taumo, Warburg 14748. 
78. Piper nigrum Linn. Sp. Pl. (1753) 28. 
Piper lawum Vahl Enum. 1 (1804) 326. 
PHILIPPINES, Vahl in herb. ef 1. c.; cultivated in all the tropical countries of 
the old world, and also in Brazil and in the West Indies. 
B trioicum C, DC. Prodr. 16* (1869) 363, emend. 
Foliis modice petiolatis, ellipticis, basi utrinque aequilonga acutis, a 
nervo centrali inaequilatis, apice acute acuminatis, utrinque glabris, 
?-plinerviis nervo centrali nervos adscendentes utrinque 2 alternatim 
mittente quorum supremus fere a 2 cm supra basin solutus, nervo 
laterali tenui aliis multo breviore utrinque a basi soluto; petiolo glabro 
fere usque ad medium vaginante, pedunculo glabro petiolum aequante, 
spica submatura quam folii limbus fere dimidio breviore, rhachi hirsuta, 
bractea longe adnata glabra oblongo-obovata basi obtusa apice rotundata 
et florem semiamplectente, flore hermaphrodito; staminibus 2, antheris 
ovatis 4-valyatis vel incompletis, ovario libero glabro, stigmatibus 4 
lanceolatis, bacca submatura globosa. 
Trioicum, scandens, Ramuli glabri in sicco nigri, spiciferi 1.5 mm 
crassi, collenchyma libriforme in fasciculos discretos tenues a latere 
productos dispositum, fasciculi intramedullares 1-seriati, canales lysigenes 
plures quorum unus centralis alii peripherici. Limbi in sicco rigido- 
membranacei, opaci inconspicue et minute pellucido-punctulati, usque 
ad 11 cm longi et 5 cm lati. Petioli 1 cm longi. Spica 6 cm longa. 
Bractea fere 3 mm longa et apice 1.5 mm lata. Filamenta oblonga, 
antherae normales eis aequilatae ovatae et quadrivalvatae. Bacca in 
sicco nigra. 
Luzon, Province of Cavite, Mendez Nuiiez, Bur. Sci. 1339 Mangubat, August. 
79. Piper pilispicum C. DC. sp. nov. 
Foliis breviter petiolatis, oblongo-ovatis, basi aequilatera obtusis, apice 
acute acuminatis, utrinque glabris, 7-plinerviis nervo centrali a 2—3 mm 
supra basin trifido, nervis lateralibus adscendentibus utrinque 2 a basi 
solutis quorum extremi tenuissimi; petiolo glabro basi vaginante ; stirpis 
fem. pedunculo glabro quam petiolus triplo longiore, spica matura limbo 
breviore, rhachi dense hirsuta, bractea longe adnata glabra oblonga 
utrinque rotundata ovario libero glabro stigmatibus 4 ovato-acutis, bacca 
ovata apice attenuato-subacuta. 
' Dioicum. Ramuli glabri teretes, in sicco fuscescentes, spiciferi 2 mm 
erassi; collenchyma libriforme, in fasciculos discretos tenues dispositum, 
fasciculi intramedullares 1-seriati, canalis lysigenis unicus centralis. 
