Tas. 6869. 
IRIS Barront. 
Native of Afghanistan. 
Nat. Ord. IntpEx.—Tribe MorzeEz. 
Genus Iris, Linn. ; (Benth. et Hook. f. Gen. Pi. vol. iii. p. 686.) 
Iris (Pogoniris) Bartoni ; rhizomate carnoso breviter repente, foliis ensiformibus 
bipedalibus lwte viridibus apice scariosis, pedunculo oligocephalo foliis 
subequilongo, spathe valvis exterioribus magnis divergentibus diutine 
viridibus, floribus 2-3-nis magnis albidis suaveolentibus breviter pedicellatis, 
ovario oblongo-trigono vix sulcato, perianthii tubo infundibulari viridulo 
any segmentis exterioribus obovatis unguiculatis infra medium reflexis 
rba elongata albo-aurantiaca decoratis venis facialibus luteo-viridibus inferi- 
oribus purpurascentibus, segmentis interioribus erectis exterioribus vix mino- 
ribus ungui angustiori purpureo venoso facie barbato, stigmatis cristis magnis 
deltoideis, antheris magnis albis. 
I. Bartoni, Foster in Gard. Chron. N.§. vol. xix. p. 275 (1883). 
This is a new species of the group of German Irises, for 
the introduction of which into cultivation we are indebted 
to Professor Mickael Foster. Let me take the present 
opportunity of saying how glad I am that a biologist with 
his training and experience has made a speciality of the 
genus in the only way in which it is possible to investigate 
properly the relationship of the complicated series of forms 
to one another, by cultivating them side by side, and on 
_ this basis attempting to work out their life history and 
mutual affinities. It was procured ina garden at Kandahar, 
during the occupation of that city by our troops in 1880, 
and was sent home by Colonel Barton, after whom it was 
named, and who was informed by a native gardener that it 
was brought from a ditch not far distant. Of the well- 
own old European types it comes nearest to I. florentina, 
from which it differs in the colouring and veining of its 
perianth-segments, and especially in the claw of the inner 
Segments being bearded, and in the very large divergent 
outer spathe-valves, which remain green for some time after 
the flowers have faded. Our drawing was made from 
Specimens sent up by Mr. R. J. Lynch, from a plant grown 
APRIL Ist, 1886. 
