ORCHIDE.^. 85 



sepalum posticnni in longitndiue a?qnaus 33 mm. longum versas apicem 3- 

 lobatnm, (lobo medio oblougo 8 mm. longo 3^ mm. lato apice obtnso vel 

 rotundato basi non contracto, lobis lateralibus angnlo 45^ divaricatis lanceo- 

 lato-triangularibus basi latere inferiore aimculatis plicatis 4 mm. longis apice 

 obtusis vel acutis), basi lol)i medii 1-appeudiculatimi, appendicidis ligulifonui- 

 bus liberis crassiusculis miuute tuberculatis, margine a lobis lateralibus iLsque 

 ad basin labelli plicato-inflexmn basi leviter ventricosmn. Colmuna linearis 23 

 mm. longa labello brevior exaLata apice dilatata, partibus dilatatis obtriangulari- 

 bus 3-4 mm. latis ; rostellimi latissimmu. Pollinia 4. 



Hab. Mt. Nashitauzau, Mt. Kontal nmzan, Jiogeslia, leg. TJ. MoEr, 

 Aprili., 1910. 



Near a small form of C. WaUicltu, but diffei^s distiuctly bj the labeUmn, 

 the lobes of which are much more divaricate. In the Indian sjjecies, tlie side 

 lobes of the hps are nearly parallel to the middle lobe. 

 Luisia Gaud. 



Lnisia megasepala Hayata sp. nov. (Fig. 41). Epiphj-ta. Cauhs 

 teres viiidis 20-30 cm. longus ramosns cmn vaginis folioiiun 4mm. iu 

 diametro tota longitudine fohosus vaginis folionun toto obtectus. FoUa alterna 

 a se 2 cm. remota ; vagina foliormn cylindrica 2 cm. longa 4 mm. iu diametro 

 ore subt.amcata vel leviter obhqua, Laniina folionmi it: laterahter compressa 

 tereto-hneari circ. 10 cm. longa 2 ram. in chameti'o apice obtusa basi oblique 

 cum vaginis articulata. Eacemi 2-3-florati latere cauhs per vaginam ori- 

 undi brevissimi, rhachibus 1 cm. longis bracteis plmi-seriatis perfecte obtectis, 

 bracteis distiche imbricateque dispositis latissime tiiangularibns, superioribiis 

 majoribus 3 mm. longis 6 mni. latis, pedicelhs lem. longis, floribus subcemnis. 

 Sepala leviter viiidia dorso pm-pnreo-pimctata, petahs flavo-viridibus, kbeUo 

 supra atio-purpureo subtus medio viridi, partibiLS laterahbus labelh pnrpm"eis. 

 Sepalum posticum oblongimi 13 mm. longimi 7-8 mm. latum 6-nerviimi apice 

 rotundatim basi Gmm.latvm; sepala lateraha oblonga 13mm.longa 7-8mm. lata 

 apice dorso carinata leviter comnata S-nenia. Petala obovato-oblonga sepalo 

 longiora 16 mm. longa 7 mm. lata apice obtuso-i-otimdata deorsum ± angustiora 

 basi 3 mm. lata. LabeUum obovato-cuneiforme 16 mm. longum 9 nuu. latmn 

 sessile lasi lattre lobis br.silaribus instrcctum, lobis basilaiibus tiiangulari- 



