10 
IRIS setosa. 
Bristle-tipped Iris. 
TRIANDRIA MONOGYNIA. 
Nat. ord. Irınacez.  (Inips, Vegetable Kingdom, p. 159.) 
IRIS, L. 
I. setosa (Pall. Dietr. spec. pl. 1. p. 448.) ; imberbis ; rhizomate subrepente, 
foliis subensiformibus caule teretiusculo ramoso folioso sub-brevioribus, 
spathis subacutis margine scariosis pedunculum adaequantibus, peri- 
gonii tubo ovario trigono breviore laciniis exterioribus sub-orbiculatis 
lato-unguiculatis interioribus brevissimis cuneiformibus truncatis cuspi- 
datis, capsula subcoriacea oblonga subtrigona apice dehiscente, seminibus 
oblongis carinatis. Fischer Index V. p. 37. 
I. brachycuspisà mos: 
I. cuspidata č Fisch. in litt. 
I. brevicuspis, Schult. Mant. I. in R. & S. vol. I. p. 306. 
This very pretty plant is said, by Dr. Fischer, to inhabit 
the northern part of Eastern Siberia, along the Lena, 
about Schigansk and Jakutzk, in Kamtchatka, Unalaschka, 
Escholtz’s Bay, Chamisso's Island, &c. Its root is said to be 
poisonous, but we know not on what authority. 
It is a very hardy herbaceous species, growing from one 
to two feet in height, if planted in any good rich garden soil, 
and freely supplied with water during the growing season ; 
but afterwards the plants should be kept rather dry, as they 
are very impatient of damp or wet during the winter months. 
It is best increased by seeds treated in the usual way, but 
the young plants will not flower before the second year. 
It was raised in the garden of the Horticultural Society, 
from seeds received from Dr. Fischer, and flowered in May 
last, for the first time. 
E 
