ORCHIDEJE. 85 



sepalum posticnm in longitudine a?quans 33 mm. lougum versus apicem 3- 

 lobatum, (lobo medio oblongo 8 mm. Ion go 3^ mm. lato apice obtuso vel 

 rotuudato basi non contracto, lobis lateralibus augulo 45 divaricatis lanceo- 

 late- triangularibus basi latere inferiore auriculatis plicatis 4 mm. longis apice 

 obtusis vel acutis), basi lobi medii 1-appendiculatum, appendiciilis liguliformi- 

 btis liberis crassinscnlis minute tuberculatis, margine a lobis lateralibus usque 

 ad basin labelli plicato-inflexum basi leviter ventricosum. Columna linearis 23 

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

 bus 3-4 mm. latis ; rostellum latissimum. Polliuia 4. 



HAB. Mt. Nashitanzan, Mt. Rontabunzan, Jiogesha, leg. U. MORI, 

 Aprili., 1910. 



Near a small form of C. WaUickii, but differs distinctly by the labellum, 

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

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



Luisia GAUD. 



Luisia megasepala HAY ATA sp. nov. (Fig. 41). Epiphyta. Caulis 

 teres viridis 20-30 cm. longus ramosus cum vagiuis foliorum 4mm. in 

 diametro tota longitudine foliosus vaginis fohomm toto obtectus. Folia alterna 

 a se 2 cm. remota ; vagina foliorum cyHudrica 2 cm. longa 4 mm. in diametro 

 ore subt.uuicata vel leviter obliqua, lamina foliorum lateraliter compressa 

 tereto-lineari circ. 10 cm. longa 2 mm. in diametro apice obtusa basi oblique 

 cum vaginis articulata. Eacemi 2-3-florati latere caulis per vagiuam ori- 

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

 bracteis distiche imbricateque dispositis latissime triangularibus, superioribus 

 majoribns 3 mm. longis 6 mm. latis, pedicellis 1cm. lougis, floribus subcernuis. 

 Sepala leviter viridia dorso pui'pureo-piuictata, petahs flavo-viridibus, labello 

 supra atro-purpureo subtus medio viridi, paiiibus lateraHbus labelh' piu-pureis. 

 Sepalum posticum oblongum 13 mm. longum 7-8 mm. latnm 6-nervium apice 

 rotr.ndatvm basi 6mm.latum; sepala lateralia oblonga 13mm. longa 7-8mm. lata 

 apice dorso carinata leviter corniiata 5-nervia. Petala obovato-oblonga sepalo 

 longiora 16 mm. longa 7 mm. lata apice obtuso-rotundata deorsum angustiora 

 basi 3 mm. lata. Labellum obovato-cuneiforme 16 mm. longum 9 mm. latum 

 sessile lasi latere lobis basilaribus instn:ctum, lobis basilaribus triangulari- 



