seed; 4, a cross section of it. 
BIGNONIALS, ~ 212 
Puarsitis. Choisy. 
Calyx naked. Stigma capitate. Ovary 3-celled, with 2 seeds in each cell. 
1. P. Nil Choisy. Convolvulus Nil Linneus.—(ConvotvuLvs Magor.) 
Stem hairy backwards ; leaves cordate, entire or 3-lobed, hairy ; peduncles — 
9-3-flowered, generally longer than the petiole ; sepals hispid at the — 
base ; corolla large, pallid, showy. 
Habitat. Tropical countries. 
Quality. Seeds purgative, when roasted. 
Uses. A common purgative in India, under the name of Kala Dana. Said to be an © 
effectual quick cathartic. Seeds are roasted like coffee, powdered, and adminis- 
tered in doses of from 30 to 40 grains, in any convenient vehicle. 
THE BIGNONIAL ALLIANCE (V. K., p. 668.) 
Patural Orders of Bignonials. 
Pevalians (Pedaliacece.) Placente parietal. 
Bignontays (Bignoniacew.) Placentz axile. Albumen 0. 
Hinariays * (Scrophulariacew.) Placents axile. Albumen abundant. 
Natural Order, Pevaliays ; Pedaliacew (V. 
K., p. 669.) . 
Prevailing Quality. Emollient, oily. 
Sesamum. Linneus. 
Upper lobe of calyx smaller. Corolla long- 
campanulate, with an unequal 5-lobed 
border. Capsule oblong, 4-cornered, 
2-valved. Seeds thick ; apterous. 
1. S. indicum Linneeus.—(SESAME- TL 0 
TrEL.) Fig. 287. ee 
Stem erect, downy ; leaves lanceolate, downy: 
entire, or lobed. 
Habitat. East Indies. 
Fig. 287.—Sesamum indicum, less than the natural size; 1, a ripe fruit; 2,a valve of the fruit 
___* The ambiguity of the term ‘ ” occasions, induces 
a it for the énpveeien than? employed by me on former ~ 
