Pratt LXIV. 
(A) ARISTOLOCHIA rortvunpa, Linn.!; (B) A. Prstonocuta, Linn.! ; 
(C) A. tones, auctorum, non Linn. 
Natural Order ARrIsTOLOCHIACE®. 
Gey. Cuar. — Calyx or perianth coloured, tubular, swollen above 
the ovary; ... limb... usually 1-2-lipped... Anthers 6, rarely 5, 
extrorse, bilocular, . .. completely united along the back to the column 
bearing the styles. Ovary inferior, 6-celled (5-celled in plants having 
only 5 anthers) ; ovules numerous, anatropal, horizontal, inserted in two 
rows.... Capsule 6-celled, many-seeded, 6-valved (5-valved in pen- 
tandrous plants); dehiscence septicidal, rarely from the apex, usually 
from the base... . Seeds many,... often boat-shaped, with inflexed 
edges, upper face concave, the prominent, thickened raphe forming a 
longitudinal ridge in the centre; albumen fleshy, radicle turned towards 
the hilum; cotyledons 2, equal or nearly equal... Duchartre in DC. 
Prodr. xv. part i. 432. 
(A.) Spec. Cuar.—Flowers greenish below, purple-brown within 
and above, solitary. Pedwnele about an inch in length. Perianth-tube 
subcylindrical, about as long as the suboblong lip, swollen base globu- 
lar. Séigmatic lobes conical. Leaves glabrous, orbicular-oval, cordate, 
basal lobes touching or overlapping one another; petiole extremely 
short. Rootstock subglobular. 
Aristolochia rotunda, Linn.! Sp. Plant. p. 1346; Gren. et Godr. FI. 
de Fr. iii. 73; Woods, Tour. Fl. p. 324. 
(B.) Spec. Cuar.— Flowers greenish below, purple-brown above, 
solitary ; peduncle an inch or more long. Perianth-tube slightly shorter 
than the lip, pubescent, nearly cylindrical, but having the edges of the 
orifice dilated and recurved; lip concave, ovate, contracted below, 
swollen base of tube globular. Stigmatic lobes broader than long, emar- 
ginate, compressed, receding so as to leave a circular cavity in the 
centre. Leaves dull green, covered with short, harsh hairs, broadly 
cordate-ovate, emarginate, with a central mucro, basal lobes widely 
separated ; petiole extremely short. Rootstock slender, cylindrical, irre- 
gularly articulate, emitting a dense mass of long, cylindrical fibres. 
Aristolochia Pistolochia, Linn.! Sp. Plant. p. 1846; Gren. et Godr. 
Fl. de Fr. iii. 72; Woods, Tour. Fl. p. 324. 
(C.) Spec. Cuar.—flowers greenish below and in the throat, brown 
above; peduncles very short, scarcely a quarter of an inch in length. 
Perianth-tube clavate, one-third longer than the oblong-ovate slightly 
attenuate lip; swollen base of tube oblong. Stigmatic lobes confluent, 
