Aristolochia.| CXII. ARISTOLOCHIACEE (BAKER AND WRIGHT). 143 
sharply curved near and gibbous at one side of the top, 6-ribbed, 
furnished inside with soft hairs; tube 4—6 in. long, broadly funnel- 
shaped, many-ribbed ; limb 9 in. in diam., 5-6 in. long, shortly cam- 
panulate, stronglyfribbed, with a membranous curtain 6 lin. wide from 
its throat; lobes 3, equal, broadly and shortly triangular, suddenly 
contracted into tails 1-2 in. long. Gynostemium subsessile, 1} in. long, 
hollow. Anthers about 24 narrowly linear, 1 in. long. Style-arms 
about 12, bifid, stigmatic at the apex.—Bot. Mag. t. 5672; FI. Serres, 
t. 1729; Mast. in Gard. Chron. 1867, 1143, with fig., 1890, vii. 525, 
fig. 83, and 1897, xxi. 337, fig. 116; Hackett in Gard. Chron. 1906, xl. 
pit, Gg. 72. 
Upper Guinea. Sierra Leone: in forests near Elugu, Barter, 3427! 
Bedembu, Scott- Elliot, 5682 ! near Port Lokko, Scott-Elliot, 5747! Lagos, Carter ! 
Fernando Po, Mann, 391 
Imperfectly known species. 
20. A. bongoensis, Lngl. Jahrb. xxiv. 488. A _ glaucescent 
twining herb. Stem slender; internodes 33 in. long. Leaves cordate, 
obtuse, subcoriaceous, 1? in. long, 14 in. wide; lateral nerves about 4 
each side, springing from the base, prominent beneath; petiole about 
1 in. long. Inflorescence elongated; bracts deeply cordate-ovate, 
amplexicaul with overlapping lobes. Flowers unknown. Capsule 
obovoid, about 2 in. long and 1 in. indiam., the seed-bearing part about 
as long as the stalk. Seeds triangular, much compressed, surrounded 
by a wing ; wing on the raphe narrow below, dilated above. 
Nile Land. Bongo: in woods near Sabbi, Schweinfurth, 2617. 
21. A. Stuhlmannii, Lngl. Pf. Ost-Afr. C. 169. Stem woody. 
Leaves unknown. Flowers many, fascicled; pedicels shorter than the 
flowers, puberulous. Perianth about 34 in. long; utricle obliquely 
obovoid ; tube slightly narrower than the utricle, long-pilose inside ; 
lobes triangular, acuminate, ‘‘23 times shorter than the tube,” long- 
fimbriate. 
Nile Land. Uganda, ex Engler. 
OrpER CXIII. PIPERACE. (By J. G. Baker, 
with additions by C. H. Wright.) 
Flowers hermaphrodite or unisexual. Perianth absent in the 
Tropical African genera. Stamens 2-6, rarely more, hypogynous ; fila- 
ments usually free; anthers erect, often articulated on the filament, 
cells 2, distinct or confluent, dehiscing longitudinally. Ovary sessile, 
1-celled and 1-ovuled in the Tropical African genera; stigmas 1-5; 
ovule orthotropous. Fruit in the Tropical African genera indehiscent, 
baccate. Seed globose, ovoid or oblong; testa usually membranous 
or rather fleshy; endosperm small; perisperm copious, farinaceous ; 
