q CONVOLVULACEA. 545 
P ovSometimes a°black Sakmuniya is met with; this is also 
spurious; and is resinous in taste and smell, but has a‘ more 
earthy appearance than the green variety. Reotified ‘spirit dis- 
solves ont a quantity of resin, and leaves a black residue 
which, under the microscope, is seen to be made up of tufts, of 
vegetable seers: numerous ea carbonaceous particles, and 
tallineparticles, Treatedwith dilute hydro- 
chloric acid it oMarviees fais after a short time; with strong 
acid it effervesces strongly at once,and forms a green solution. 
’ 
* 
a fa a 
The Persiais call Scammony Mahmudah. Mir Mnhammad 
Husain in the Makhzan gives a good description of it and the 
plant which produces it. ‘He tells us that artificial Seammeny 
is made from the juice of Calofropis gigantea, mixed with the 
flour of a kind: of pulse called ‘in Persiaw ‘ Karsanah.’ His 
account of the uses of the drug does not differ materially from 
hat given in European works, with the exception that Scam- 
mony when baked is said to lose its aperient properties and to 
act as a powerful diuretic “The baking process consists im 
nclosing the powdered drag i in a bag, and then placing the 
bag inside an apple | or quince which has been hollowed out for 
the } purpose, the apple i is then enclosed i in dough like a dump-_ 
ling : and baked in an oven. ee 
CRESSA CRETICA, Linn. 
4 Fig. —tam.- ths t: 183; Sibth. Fi. Greve. y g, 256) 
eS “Hab. —Throughout India. Common on the West 
| Diary —Rudravanti, Rudranti (Hind., Beng.), Khardi, 
Chavel chansghaed Una (Guz., Sind. 5 
ses, &e, —This plants is the Rudantike and 
, and is behaved to. Tes! 
