144 DR. HOOKEK AND DE. THOMSON'S PR^CUESOEES 



Herbacea, 4-12", glabra. Radix tuberosa (ex Wight), Folia 1-4", ob- 

 tusa, crenata. Flores 5-6, sub | lati. Capsula breviter elliptica, 

 glabra. Semina echinata {Wight). 



71. I. SUBCORDATA {Am. in Hook. Comp. Bot. Mag. ii. 323). Caule 

 simplici longe nudo v. basi repente ramoso, foliis longe petiolatis 

 ovatis V. ovato-lanceolatis subacutis v. acuminatis basi cordatis rotun- 

 datisve grosse crenatis, pedunculis folio brevioribus, bracteis ovato- 

 lanceolatis acuminatis, pedicellis gracilibus, sepalis oblongo-ovatis 

 acuminatis majusculis, labelli lamina cymbiformi acuminata calcare 

 elongato acuminato gracili incurvo, alis latis. — Thw. En. 67. 



Hab. Sylvis montosis subtropicis Ceylonise, alt. 6000-6000 ped. ! Walker, 



&c. (fl. Sept., Oct.). 

 Species variabilis. Caules 4-10". Folia 1-3", obtusa v. acuta, petiolo 



elongato. Flores albidi, sepalis rufescentibus. Capsula parva, ^ unc. 



longa. — I. umhellatcB valde affinis, diflPert bracteis acutioribus foliisque 



basi cordatis v. rotundatis. 



72. I. UNCiNATA ( Wight in Madr. Journ. Science, v. p. 11. t. vi., Icones, 

 t. 747). Caule erecto, foliis 2-3" longe petiolatis ovatis ovato-corda- 

 tisve acuminatis serratis supra nervis pubescentibus subtus glaberrimis, 

 petiolo apice glanduloso, pedunculis axillaiibus elongatis erectis, 

 bracteis parvis, floribus 4-8 mediocribus approximatis, pedicellis bre- 

 vibus, sepalis amplis oblique ovatis acuminatis, labello subhemispherico 

 calcare brevi ventricoso basi constricto apice uncinato, vexillo oblongo, 

 alis bipartitis. 



Hab. Sylvis tropicis Malabarise, ad Courtallam ! Wight (fl. Aug., Sept.). 



Caules graciles. Petioli 1-2". Pedunculi foliis breviores, 3-4". Pedi- 

 celli ^' . Flores sub V longi. Alee lobo antico minore horizontaliter 

 patente, postico semiovato obtuso. Capsula brevis, rostrata, oligo- 

 sperma. 



73. I. visciDA {Wight in Madr. Journ. of Science, v. p. 12, Icones, 

 t. 746). Caule gracili erecto basi repente radicante angustato, foliis 

 2-3" longe petiolatis ovatis acuminatis serratis nervis iitrinque hispi- 

 dulis, pedunculis axillaribus erectis filiformibus viscidis 2-4-floris, 

 bracteis majusculis ovatis acuminatis, pedicellis breviusculis approxi- 

 matis, floribus majusculis, sepalis amplis late ovatis longe acuminatis, 

 labello brevi cymbiformi calcare longo gracili incurvo, vexillo oblongo 

 acuminato, alis bipartitis lobis, semiovatis. 



? An I. cordata, Wight in Madr. Journ. Sc. v. p. 10. 



Hab. Montibus subtropicis Pulney Malabarise, alt. 5500 ped. ! Wight. 



Caulis ut videtur flexuosus. Petioli 1-3". Pedunculi 4-5", graciles. 

 Bractece \" longse. Flores rosei v. purpurascentes. Capsula ellip- 

 tica, acuta, polysperma. Semina orbiculata, pilosa. 

 The /. cordata, Wight, from Dr. Wight's specimens, collected in the 



Shevagherry Hills, appears to differ from I. viscida only in the subcordate 



base of the leaves. 



