148 CXIII. PIPERACEZ (BAKER AND WRIGHT). 
| Peperomia. 
climbing. Leaves exstipulate, alternate, opposite or verticillate, entire, 
penniveined or triplinerved. Spikes terminal or leaf-opposed, solitary 
or several together ; bracts sessile, usually peltate. 
Species about 400, spread through the warmer regions of both hemispheres, 
concentrated in America. 
Leaves alternate. 
Stems erect from the base. 
Leaves cuneate at the base 
Leaves shortly cordate at the base. 
Leaves 5—7-nerved from the base 
Leaves penninerved 
Stems creeping and rooting at 
ascending. 
Leaves ovate . 
Leaves oblong-lanceolate. 
Leaves subpellucid 
Leaves moderately thick, opaque. 
Leaves pubescent 
Leaves glabrous 
Leaves ovate-lanceolate . 
Leaves oblong or ovate. 
Leaves 3-nerved 
Leaves 5-nerved. 
Leaves oblong, ciliate at the apex 
Leaves lanceolate 
Leaves obovate. 
the base, then 
Leaves narrowed from the middle to the 
base 
Leaves slightly narrowed at the base 
Stems trailing and rooting nearly to the tip. 
Leaves oblong-lanceolate 
Leaves oblong 
Leaves ovate-oblong 
Leaves orbicular, 
Leaves thin, membranous 
Leaves thick, opaque. 
Midrib distinct 
Veins all hidden. 
Bracts subsessile . : 
Bracts shortly stalked . 
Leaves opposite. 
Leaves oblong or suborbicular 
Leaves rhomboid 
Leaves whorled. 
Leaves 3-nate 
Leaves 4-nate . 
Ww bo 
2129: 
20. 
21. 
3 ae 
SBE 
. 24. 
. 
25. 
. P. thomeana, 
. P. pellucida. 
. BP. knoblecheriana. 
. PP. Baumannii. 
. P. Molleri. 
. P. ruwenzoriensis. 
. P. magilensis. 
. PL. Preussii. 
. P. vuleanica. 
. BP. Holsiti. 
. P, ulugurensis. 
. PB. fernandopoiana 
. P. vaccinifolia. 
. P. goetzeana. 
. P. Stuhlmannii. 
. P. abyssinica. . 
. P. bueana, 
. PP. Mannii. 
P. crassifolia. 
P. mascharena. 
P. bangroana. 
P. kamerunana. 
P. arabica, var. 
parvifolia. 
P. Duseniv. 
P. reflexa. 
1. P. thomeana, C’. DC. in Bol. Soc. Brot. x. 154. Stem erect, 
glabrous, sparingly branched ; branches very slender. Leaves alternate, 
obovate-oblong, 2 in. long, 1 in. broad, cuneate at the base, rounded 
and often emarginate at the apex, firm, subpellucid, 3-nerved; petiole 
4 lin. long. Spikes terminal, dense, 8 lin. long; peduncle as long as 
