44 PENTANDRIA DIGYNIA. Asclepias. 
made, do not enable me to say positively in what pro- 
portion they yield their colour; but it was ofan excellent 
quality, and as the plant grows very readily from layers, 
slips, or cuttings, I think it very well worthy of being cul- 
tivated ; particularly as itis permanent, like the Nerium, 
so that a plantation once formed, well continue for a num- 
ber of years; and if we are allowed to draw a compari- 
son between the leaves of this plant, and those of Neri- 
um tinctorium, the quantity of colour they may yield will 
be in a larger proportion than from the common Indigo 
plant. 
Since writing the above I have learned that this plant 
is a native of Cooch-bahar and I had some of the plants 
sent me from thence, also from Pegu, from.whence Ihave 
likewise received plants. 
Some more experiments I have made with the leaves, 
comfirm what is above related, not only respecting the 
quality of the Indigo, but also that the proportion is con- 
siderably greater than is obtained from Indigofera tinc- 
toria, I have therefore warmly recommended an exten- 
sive cultivation thereof, 
17. A. echinata, R. : 
Hairy. Leaves long-petioled, round-cordate, pointed, 
' downy. Unmbels proliferous, long-peduncled. Follicles 
covered with inoffensive prickles, Fructification clavate. 
Cynanchium extensum, Willd. 1. 1257. 
Pergularia. Lamarck’s illust. t. 176. 
Hind. Sagowani. 
Teling. Jutuga. 
This is also a perennial, senile es species, a native of 
hedges, &c. flowering time the wet, and cold season; it 
abounds with milky juice. Tender parts hairy. The 
smell offensive, Leaves opposite, petioled, broad- 
cordate, with a deep sinuosity at the base ; and semiorbi- 
cular lobes ; entire, pointed, very downy, from two to — 
