152 DB. HOOKEE AND DE. THOMSON'S PEiECURSOBES 



of the spurred sepal and spur. Strachey and Winterbottom's specimen 

 has much shorter peduncles than the Sikkim ones. 



90. I. uRTiciFOLiA (Wall in Roxb. FL hid. ii. 457, Cat. 4768). Gla- 

 bemma, eaule elato gracili ramoso, ramis flexuosis, foliis sessilibus pe- 

 tiolatisque petiolo alato anguste ovato- v. oblongo-lanceolatis apice 

 acuminatis vel caudatis crenato-serratis membranaceis, pedunculis 

 lateralibus et terminalibus graciUbus patentibus foho brevioribus lon- 

 gioribusve 2-5-floris, pedicellis breviusculis bracteis, majusculis caducis, 

 sepalis late ovatis acuminatis, labello saccato oblique conico ecalcarato 

 vel calcare brevi incurvo subaequilongo terminato, alis caudatis, capsula 

 lineari acuminata torulosa. 



Var. a. Foliis ovatis, pedunculis lateralibus, floribus fiavis. Wall. Cat. 



4768 (Herb. Henslow.). 

 Var. i3. Foliis ovato -lanceolatis longe caudato-acuminatis, pedunculis 

 numerosis lateralibus terminalibusque 2-4-floris foliis brevioribus, 

 floribus pallide cseruleis. (An una cum var. y species distincta ?) 

 Var. y. Foliis ovato-lanceolatis grossius crenatis, pedunculis validioribus, 



bracteis elongatis, floribus albis v. pallide rubro-purpureis. 

 Hab. Sylvis umbrosis temperatis Himalayae ; a, Nepal ! Wallich ; /S, 

 Sikkim, alt. 8000-10,000 ped. ! y, Sikkim, 10,000-12,000 ped.! J. D. H. 

 (fl.Aug.). (v.v.) 

 Species pulchra, 3-4-pedalis, vage ramosa. Folia longe caudato-acumi- 

 nata et basi longe angustata; ob pedunculos saepe 1-floros vel 

 laterales et terminales inter banc sectionem et § E osculat. Petioli 

 non glanduligeri, nee basi stipulati. Pedunculi gracillimi, 1-3'', 

 patentes. Flores mediocres, pallide caerulei. Capsula pollicaris, 

 seminibus 1-seriatis. Semina magna, oblonga, fusca, testa laevi. 

 This is a very puzzling plant : Wallich's characters do not well agree 

 with those of his no. 4768 in Herb. Henslow as to the leaves, which are 

 shorter and broader than the description indicates. The flowers of the 

 Nepal plant are yellow, but in the Sikkim varieties lilac, white, or purple. 

 The leaves vary in size from 2-6 inches, and the peduncles, which are 

 axillary and terminal, vary quite as much ; generally they are very 

 slender, patent, and filiform, but in var. y often stout and erect, with 

 large persistent subulate bracts. I find four lateral sepals in var. y, of 

 which the two accessory are often reduced to hairs. The spur is some- 

 times wholly absent in Sikkim specimens. The much greater size of the 

 flowers, and their broad spurred labellum, sepal, and broad petals di- 

 stinguish this from I. longipes, which is its nearest ally. 



91. I. LEPTOCERAS (DC. Prorfr. 1, 688, Wall. Cat. 4170). Glaberrima, 

 cauie erecto simplici v. ramoso folioso, foliis 2-5" ovatis lanceolatisve 

 utrinque attenuatis breve petiolatis setuloso-serratis, pedunculis axil- 

 laribus subterminalibusque erectis gracilibus, bracteis ovato-lanceolatis 

 acuminatis, floribus (cum calcare) %~\" longis, sepalis mediocribus late 

 ovatis subulato-acuminatis, labello infundibuliformi in calcar gracil- 

 limum incurvum v. rectum attenuato, capsula gracili lineari-clavata. 



