154 DE. HOOKEE AND DE. THOMSON'S PE^CUESOEES 



white, or even pale purple, and they are often speckled with rose-colouv 

 or purple spots. Edgeworth describes a variety of his /. micranthemum 

 as having the spur reduced to a small sac, from which, as well as from 

 the size of the flowers of some of his specimens, I am inclined to suspect 

 that his plant, or some of it, may be referable to I. br achy centra, K. & 

 K. The /. Candida, Lindl., doubtfully referred here by Edgeworth, is 

 certainly a very different plant, having very large flowers, and being 

 undoubtedly a variety of /. Roylei, Edgeworth's I. elata appears from 

 his specimens to be a form of /. leptoceras, but the specimens are not 

 sufficient for satisfactory determination. 



This species is on the whole most nearly allied to /. tingens, but di- 

 stinguished by its much larger flowers and longer spur ; some specimens 

 are, however, with difficulty distinguishable. There are sometimes pedi- 

 cellate glands on the basal margins of the leaves. 



92. I. LAXiFLORA {Edgcw. in Linn. Trans, xx. 39). Caule elato erecto, 

 foliis3-6''longepetiolatispetioloalatoovato-lanceolatisutrinqueacumi- 

 natis grosse crenatis sinubus setigeris, pedunculis numerosis gracilibus 

 subterminalibus, racemis breviusculis, bracteis parvis ovato-subulatis, 

 floribus aureis v. pallide purpureis cum calcare f ', sepalis parvis 

 ovato-subulatis, labello infundibuliforrai in calcar rectum conicum 

 flore longiore sensim attenuato, vexillo orbiculari concavo non cornuto, 

 alis majusculis purpureis rotundatis v. inferiore longe caudato, capsula 

 angusta lineari. 



I. micranthemum? Edgew. in Linn. Trans, xx. 39. 



Hab. Himalaya temperata, Sikkim, alt. 9000-11,000 ped. ! J.D.H.; 

 Garwhal et Kumaon ! St. Sf W., Madden; Simla, 6000-8000 ped. ! 

 T. T. (fl. temp. pluv.). (v.v.) 



Herba 3-pedalis. Folia membranacea, alterna, basi interdum glandu- 

 loso-setigera, petiolo basi glandulis magnis non stipulata, sed interdum 

 caulis infra petiolum linea glandularum nigrarum instructa est. Ve- 

 dunculi 3-5'', 6-14-flori. Pedicelli graciles, ^". Flores pallide pur- 

 purei V. violacei, interdum sordidi? Capsula linearis, gracilis, f, 

 oligosperma. 

 Very similar indeed to I. leptoceras, and probably only a form of that 



plant ; but distinguished by its shorter spur and usually lilac lateral 



petals. Most of my specimens have rounded lobes to the petals, but in 



one of Strachey and Winterbottom's the lower lobe terminates in a long 



subulate tail. 



93. I. Lemanni {H. f. Sf T.). Erecta, glabrd, caule ramoso, ramis 

 suboppositis, foliis longe petiolatis late ovatis obtusis obtuse dentatis, 

 pedunculis elongatis apice flores 3-5 gerentibus, bracteis parvis late 

 ovatis, floribus majusculis, sepalis late ovato-cordatis, vexillo hemi- 

 spherieo, labello late infundibuliformi in calcar elongatum gracile in- 

 curvum abrupte attenuato, alis amplis. 



