Hirea. | DECANDRIA TRIGYNIA. 447 
tals bifid, with a toothlet on each side near the nectary. 
Capsule ovate-oblong, one-celled. 
A native of Nepaul. It flowers during the cold season 
in the Botanic garden at Calcutta. 
ARENARIA. Schreb. gen. n. 774. 
_ Calyx five-leaved. Petals five, entire. Capsule one- 
celled, many-seeded. 
A. flaccida, R. 
Annual, flaccid, jointed, smooth, dichotomous. Leavis 
in opposite fascicles, filiform, the length of the joints. 
Flowers panicled. Calyces rather obtuse. Capsules glo- 
bular. Seed reniform, membrane-winged. 
This plant greatly resembles spergula arvensis, and pro- 
bably may be a variety of that plant ; itis only found dur- 
ing the cold season as a weed in gardens about Calcutta, 
and may have been accidentally introduced from Europe. 
HIRZA. Schreb. gen. n. 781. 
Calyx five-leaved. Corol five-petalled. Germ supe- 
rior, three-celled ; cells one-seeded ; attachment interior. 
Seeds (Samara) three, each with a large membranaceous 
wing on each side. Embryo inverse, without perisperm. 
1. H. nutans. R. 
Shrubby, twisting. Leaves simple, ovate ventricose, 
entire, acuminate, Panicles terminal, drooping. Samara 
elliptic. . 
An extensive, twining, shrubby species, a native of 
the interior parts of Bengal. It flowers in August and 
September, the seed ripens in November and December, 
Stems ligneous, and with their extensive branches, twin- _ 
ing up and over trees of considerable size. Bark of the old 
