luis. 17 



with red-brown ; standards erect, obovate-unguiculate. Style- 

 branches violet and yellow ; crests very short. 

 Hab. Japan ; Yedo, Savatier 1223. 



49. I. Watii Baker — Leaves thin, ensiform, 1^^ ft. long. 1^ in. 

 broad at the middle at the flowering season. Stem not over- 

 topping the leaves, bearing 5-G heads on erecto-patent peduncles 

 in a regular raceme. Spathes 2-3-flowered ; outer valve thin, 

 green, lanceolate-acuminate, 2 in. long ; the next much shorter ; 

 pedicels about an inch long, articulated at the apex. Perianth- 

 tube infundibuliform, ^ in. long ; limb pale lavender-blue ; falls 

 with an obovate blade J in. broad, as long as the haft, spotted and 

 striped with dark purple and at the throat with yellow, apparently 

 not crested ; standards rather shorter, oblong-unguiculate, ^ in. 

 broad. Style-branches an inch long ; crests deltoid, deeply 

 laciniated. Capsule small, oblong, obtusely trigonous. 



Hab. Manipur ; summit of Kongui Hill, alt. 6000 ft., Watt 6337. Habit 

 of I. tectorum. 



50. I. DicHOTOMA Linn. fil. Suppl. 97 ; Bot. Keg. t. 246 ; Sweet 

 Brit. Flow. Gard. t. 96 ; Baker in Bot. Mag. t. 6428. 1. pomeri- 

 diana Fischer. Pardonthus dichotomus Ledeb. — Khizome short, 

 stout, oblique ; sheaths not splitting into fibres. Leaves ensiform, 

 falcate, moderately firm, a foot long, an inch broad. Stem slender, 

 solid, terete, much overtopping the leaves, bearing 6-10 heads of 

 flowers. Spathes |-f in. long, 5-6-flowered; outer valves sub- 

 scariose, ovate or oblong ; pedicels longer than the spathe, articu- 

 lated at the apex. Flowers fugitive, twisting spirally. Perianth- 

 tube obsolete ; limb 1-lJ in. long, whitish, spotted with lilac-blue, 

 expanding only once in the afternoon; falls with a suborbicular 

 blade ^ in. broad ; the claw obscurely bearded, white, spotted with 

 purple ; standards oblong-unguiculate, nearly as long. Style- 

 branches f in. long ; crests lanceolate-deltoid. Capsule oblong- 

 cylindrical, obtuse, 1-2 in. long. 



Hab. Davuria and North China. Decaisne, in Bull. Soc. Bot. France, xx. 

 300, places it in Evansea, and makes two species, E. dichotoma and E. 

 vespertina. 



Subgenus III. Oncocyclus (Siem.) 



51. I. susiANA Linn. Sp. Plant. 55 ; Curt, in Bot. Mag. t. 91 ; 

 Flore des Serres, t. 1067-1068. I. punctata Moench. Oncocyclus 

 susianus K. Koch. — Rhizome stout, short-creeping. Leaves linear, 

 very glaucous, moderately firm, 6-9 in. long at the flowering 

 time, ^-^ in. broad. Stem 1-headed, ^-1 ft. long, bearing 2-3 

 long leaves. Spathes 1-2-flowered, 3-4 in. long; valves green, 

 lanceolate, ventricose, scariose towards the tip at the flowering 

 time ; pedicels short. Perianth-tube cylindrical, 1-lJ in. long ; 

 limb 3-4 in. long, finely veined and dotted with brown-black on a 

 brownish-white ground ; falls obovate-cuneate, rather longer than 

 broad, with a difiused brown beard an inch broad ; standards with 

 an orbicular blade broader than the fall, and a short claw. Style- 

 branches an inch and a half long, convex on the back ; crests very 

 large, recurved. 



