Kokan, two well-known species of the same group, with 
rootstocks that spread even more rapidly by stolons 
than the former, though hardly to be distinguished, when 
in a dormant condition, from those of the latter. This 
new /ris Mr. Dykes has dedicated to the Messrs. Hoog, 
nephews of its introducer, and now the heads of the 
famous establishment at Haarlem whence it was received 
by him. Like other members of the same section as 
I. Hoogiana, Mr. Dykes finds that its rhizomes, if they 
are to remain firm and plump, should not be taken up 
before the middle of July. One of the more pronounced 
features of this /ris is the uniform colouring of all parts 
of the flower, with the exception of the rich golden- 
yellow beard. The general colour is lavender in the 
fully opened flower, though the shade appears to vary 
slightly, and in his original account of the plant Mr. 
Dykes states, on the authority of Mr. Hoog, that white- 
flowered specimens occur in the original stock. 
Description.—Herb with the rhizome emitting numerous stolons which are 
often of considerable length. Leaves ensate, slightly curved, somewhat blunt, 
14-18 in. long, up to ? in. wide, glaucous-green, smooth. Stem about 20 in. 
high, 2-3-flowered at the top. Spathes herbaceous, green except at the tip and 
along the upper portion of the membranous margin where they are flushed with 
purple, sharply keeled, 24-3} in. Pedicels very short. Perianth-tube green, 
streaked with purple, about 1} in. long, reaching the top of the spathe ; outer 
segments with a reflexed rounded-obovate quite blunt, uniformly clear lavender- 
violet limb, 1} in. long, 1} in. wide, and with a wide cuneate claw 1} in. long, 
of a paler lavender, indistinctly veined at the sides, beard copious, golden 
yellow, extending almost for 1} in. somewhat beyond the claw on to the limb, 
where it becomes thinner and ends abruptly ; inner segments erect, with an 
obovate somewhat acute limb gradually narrowed downwards to a short rather 
narrow claw, including the claw over 3 in. long, 1} in. wide, uniform in colour 
with the outer segments, beard scanty, golden yellow, extending about 1 in. 
Anthers slightly longer than the filaments, pale in colour, with whitish pollen. 
Ovary oblong, 1-1} in. long; style-arms wide-oblong, lavender; crests with 
broadly semi-ovate, almost entire lobes. Capsule elongated, narrowed to the tip. 
Seeds pyriform, brown, rugulose, with a conspicuous whitish aril. 
Tas. 8844.—Fig. 1 and 2, anthers ; 3, stigma :—all enlarged. 
