Koad 
3 — eal ig of a light green sGisiies 15 inches long; ealyx 
identical with those: re E,, hederacea. 
532 CONVOLVULACEM. 
quadrangular cells; 3rd, a layer of radially elongated prisma= 
tic cells; 4th, a zone of parenchyma, the cells of which are 
irregularly compressed. Within the testa is the thin layer of 
albumen, which contains much mucilage. The cotyledons are 
built up of polygonal cells; in their substance are cavities or 
passages which contain a yellowish oil. 
Ipomoea muricata, Jacq., Hort. Schoenb, vis, 40, t. 325; 
Bot. Reg. iv., t. 290, a native of Persia and the Himalayas, is 
the source of the Tukm-i-nil imported into Bombay from Persia. 
Roxburgh says of it :— “ I have only met with this in my own 
garden; it was raised from seeds sent from Persia and proves — 
annual.” Itis noticed by Graham, who seems to regard it as a 
variety of Calonyction speciosum ( Bombay Plants, No. 972). 
In Bombay it is common in gardens and upon waste ground, 
and it is agarden weed in many parts of the Concan, where it is 
known as Barik Bha urt, or the lesser Bhauri, on account of the 
similarity of the calyx to that of Porana racemosa (Bhauri). | 
The juice of the plant is used to destroy bugs. The Bombay — 
plant i is identical with the one we have obtained by sowing the 
Persian see a 
A a —Annual herbaceous, Secs, root small, 
nad: with many slender rootlets ; stem branched, covered 
with soft prickles, not hairy; leaves broadly aperete, acurninate, 
smooth, onlong petioles; flowers axillary, 2 to4, on long 
peduncles having prickles like the stem ; pedicles large, fleshy — 
vided ; ‘sepals 5, broadly ovate, mucronate, smooth, persistent; a 
corolla. purple, about 2 inches in diameter, expanding at 
sunset, before sunrise ; capsule two-celled, composed 
of 4 segments, whisk separate from the central partition; cells 
two-seeded ; seeds dark brown, smooth, the same shape asthose 
of Kaladana, about 4rd ofan inch in length, and} in breadth; 
weight about 8 grains each. They can easily ie ae 
guished from Indian Kaladana by their greater size, lighter 
colour and thick testa; their medicinal Prapertigs ww to be 
