41 8 C. DE CANDOLLE. PIPERACEAE. 



Dioïcum, scandens. Ramuli glabri, spiciferi 3 mm. crassi, in 6 mm. crassis collenchyma 

 continuum et haud libriforme, fasciculi intramedullares 3-seriati, canalis lyzigenis centralis 

 cellulis gelifactis farctus, canales peripherici aliquot. Limbi in sicco firmo-membranacei minute 

 et inconspicue pellucido-punctulati, usque ad 26 cm. longi et 22 cm. lati, basis lobi ambo 

 summo petiolo inserti. Petioli superi circiter 4.' j^ cm. longi, inferi circiter 7 cm. longi et usque 

 ad limbum vaginantes, stipulis superne ad petiolum attenuatis. Pedunculi i '/o cm. longi. Spica 

 matura 25 cm. longa, inferme usque ad 5 mm. crassa. Bracteae pelta \/., mm. diametro, 

 pedicellus i '/^ mm. longus. Bacca i'/^ mm. longa, 2 mm. crassa, in sicco plus minusve trigona. 

 Stigmata in apice baccae sessilia. 



Nouvelle-Guinée néerlandaise, Noord-rivier près de Alkmaar: B. Branderhorst n. 363, fl. 9-4-oS ; 

 G. M. Versteeg n. 1581 fl. 8-8-07. 



\ Piper Wichmannii C. DC. n. sp. 



Foliis longe petiolatis, rotundato-ovatis, basi inaequilatera profunde cordatis apice acute 

 acuminatis, utrinque et subtus densius villosulis, margine ciliatis, i i-plinerviis, nervo centrali 

 nervos adscendentes 2 alternatim mittente quorum supremus a 7,'/., — 5 cm. supra basin solutus, 

 nervis lateralibus altero latere 3 altero 4 a basi divaricantibus; petiolo villosulo basi fere ima 

 vaginante, bracteae glabrae pelta rotundata glabra centro longe pedicellata, ovario libero 

 glabro oblongo, stigmatibus 3 brevissimis ovatis. 



Ramuli villosuli, spiciferi in sicco 4 mm. crassi, collenchyma haud libriforme in fasciculos 

 transverse valde productos dispositum, fasciculi intramedullares 2-seriati. Limbi in sicco mem- 

 branacei minute pellucido-punctulati, usque ad 17 cm. longi et 15 cm. lati, basis lobi summo 

 petiolo inserti quorum alter 3'/-, cm. longus et 5 cm. latus, alter 7';., cm. longus latusque. Petioli fere 

 usque ad 5 cm., pedunculi 2 cm. longi. Spica submatura circiter 20 cm. longa et 5 mm. crassa. 



Nouvelle-Guinée néerlandaise, côte du Nord: Atasrip n. 39 Exp. Wichm,\xn 1903; H. L. B. 

 910, 160 — 301. 



- Piper bilobulatum C. DC. n. sp. 



Foliis modice petiolatis, oblongo-ovatis basi aequilatera rotundatis vel oblongo-ellipticis 

 basi aequilatera acutis, omnibus apice acute et sat longe acuminatis, supra glabris subtus 

 breviter et haud dense pilosis, penninerviis nervo centrali nervos adscendentes 3 utrinque 

 mittente quorum superi 2 alterni, supremus a 2'/, — 4 cm. supra basin solutus, infimi magis 

 arcuati et fere a basi soluti, nervulis primariis transverse parallelis; petiolo juniore hirtello, 

 basi ima vaginante; stirpis fem. pedunculo petiolum fere aequante, juvenili parce hirtello dein 

 glabro, spica cylindrica stilis gracilibus echinata, apice obtusa, submatura quam folii limbus 

 pluries breviore et sat crassa; rhachi glabra, bracteae glabrae pelta orbiculari, pedicello carnoso 

 turbinato; ovario in rhachi profunde immerso et cum ea concreto superne stilifero, stilo 

 emerso gracili glabro apice longitudinaliter bilobulato, lobulis obtusis. 



Dioicum, scandens. Ramuli juvéniles hirtelli, dein glabri, teretes, sp'ciferi 2 mm. crassi, 

 in 4 mm. crassis collenchyma libriforme in fasciculos discretos a latere elongatos dispositum, 

 fasciculi intramedullares i-seriati, canalis lyzigenis centralis, canales peripherici numerosi cellulis 



