2 HANDBOOK OF IRIDEiE. 



Subgenus VI. Pseudevansia. Outer segments with a beard which 

 springs from a rudimentary crest . . . Sp. 75-81. 



Subgenus VII. Pogonieis. Outer segments with a beard down the 

 claw and lower part of the blade. 



Group of I. PUMILA. Dwarf; spathes 1 -flowered. 



Tube long Sp. 82-86. 



Tube short Sp. 87-91. 



Group of I. BiFLOBA. Stems 1-headed; spathes 1-3-flowered. 

 Leaves linear ....... Sp. 92-97. 



Leaves ensiform Sp. 98-110. 



Group of I. VARIEGATA. Stem short, forked, not much overtopping 

 the leaves Sp. 111-117. 



Group of I. GERMANicA. Stcms forked, overtopping the leaves. 

 Spathes not scariose at the flowering season . Sp. 118-129. 



Group of I. PALLIDA. Stems forked, overtopping the leaves. 

 Spathes scariose at the flowering season . Sp. 130-133. 



Series II. — Kootstock bulbous. 



Subgenus VIII. Xiphion. Inner segments of the perianth large, 



oblauceolate, erect. Stamens not adhering to the style-branches. 



Caulescent. Perianth-tube obsolete . . Sp. 134-136. 



Caulescent. Perianth-tube produced . . Sp. 137-141. 



Acaulescent Sp. 142-147. 



Subgenus IX. Gynandriris. Inner segments produced, oblauceo- 

 late, erect. Stamens adhering to the style-branches. 



Sp. 148. 



Subgenus X. Juno. Inner segments of the perianth spreading, 

 minute Sp. 149-161. 



Subgenus I. Apogon. 



1. I. HUMiLis M. Bieb. Fl. Taur. Cauc. i. 33; Cent. t. 13. 

 Neubeckia humilis Alefeld. I. ruthenica Ker, ex parte. — Khizome 

 wide-creeping ; rudimentary leaves fibrous. Leaves up to 12 in a 

 tuft, linear, glaucous, firm in texture, strongly ribbed, |— 1 ft. long, 

 ^ in. broad. Peduncle obsolete, so that the spathe is sessile ; outer 

 valves lanceolate, firm, green, 1^-2 in. long. Perianth-tube slender, 

 1^-2 in. long; limb bright lilac, 1|~2 in. long; falls with a sub- 

 orbicular blade f-f in. broad, and a long cuneate haft ; standards 

 oblanceolate-unguiculate, J-^ in. broad. Style-arms narrow, an 

 inch long ; crests deltoid. 



Hab. Caucasus and Georgia to Hungary and Transylvania. 



2. I. minuta Franch. et Savat. Enum. Jap. ii. 42, 591= — 

 Ehizome slender ; tufts non-contiguous ; sheaths splitting into 

 fibres. Leaves linear, acuminate, 5-6 in. long, ^-^ in. broad. 

 Peduncle very short, 1-headed; spathe-valves green, lanceolate; 

 pedicel about an inch long. Perianth-tube above an inch long ; 



