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Tas. 7784, 
TRIS curysantua. 
Native of Persia ? 
Nat. Ord. Intpra.—Tribe Morzxe2. 
Genus Iris, Linn.; (Benth. & Hook. f. Gen. Plant. vol. iii. p. 686.) 
Iris (Pogomiris) chrysantha; rhizomate breviter repente, foliis linearibus 
crassis erectis pedalibus glaucescentibus margine stramineis, pedunculo 
elongato monocephalo, spathe valvis magnis lanceolatis acuminatis 
chartaceis pallide viridibus, perianthii magni pallide lutei tubo 
cylindrico pollicari, segmentis exterioribus oblongis emarginatis e basi 
recurvatis deorsum conspicuo barbatis, segmentis interioribus latioribus 
erectis obovatis, ovario magno clavato distincte stipitato, styli ramis latis 
cristis quadratis integris. 
This fine species of Iris belongs to the section Pogoniris, 
and is easily distinguished from the species already known 
by its narrow leaves, long peduncle with a single cluster 
of flowers, large spathe-valves and large, pale yellow 
flower, with a short tube. Its native country is rather 
uncertain. Kew received it from Mr. R. I. Lynch of the 
Cambridge Botanic Garden, with whom it flowered last 
June. He received it from Mr. C. G. Van Tubergen, Jr., 
of the Zwanenburg Nurseries, Haarlem, under the name 
of Oncocyclus, species. Mr. Van Tubergen has not himself 
flowered it, and it seems likely that it was introduced 
accidentally, along with a fine new species of the Onco- 
cyclus section, which he has lately distributed under the 
name of Jris urmiensis, and which was collected in the 
neighbourhood of Lake Urmiah, in North-west Persia. 
Descr.—Rhizome shortly creeping. Leaves linear, a foot 
long, erect, glaucescent, thick and firm in texture, with a 
narrow, pale margin. Stem slender, as long as the leaves, 
bearing a single terminal cluster of flowers. Spathe-valves 
lanceolate-acuminate, four inches long, pale green, charta- 
ceous. LPertanth pale yellow, with a cylindrical tube above 
the ovary, nearly an inch long; outer segments oblong, 
emarginate, three inches long, reflexing from near the 
base, furnished in the lower half with a bright yellow 
beard ; inner segments erect, obovate-cuneate, as long as 
Juuy lst, 1901. 
