ORCHIDE;E. 85 



sepalum posticum in longitudine sequans 33 mm. longum versus apicem 3 

 lobatum, (lobo medio oblongo 8 mm. lorigo 3 mm. lato apice obtuso vel 

 rotundato basi non contracto, lobis lateralibus angulo 45 divaricatis lanceo- 

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

 obtusis vel acutis), basi lobi medii 1-appendiculatran, appendicnlis liguliformi- 

 bus liberis crassiusculis minute tuberculatis, margine a lobis laterah'bus 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. Pollinia 4. 



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

 Aprili., 1910. 



Near a small form of C. Wallichii, 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 HAYATA sp. nov. (Fig. 41). Epiphyta. Caulis 

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

 diametro tota longitudine foliosus vaginis f oliorum toto obtectus. Folia alterna 

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

 ore subtiuncata vel leviter obliqua, lamina folioram 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 vaginam ori- 

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

 bracteis distiche imbricateque dispositis latissime triangularibus, superioribus 

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

 Sepala leviter viridia dorso purpureo-punctata, petahs flavo-viridibus, labello 

 supra atro-purpureo subtus medio viridi, partibus laterah'bus labelli purpureis. 

 Sepalum posticum oblongnm 13 mm. longum 7-8 mm. latum 6-nervium apice 

 rotnndatrm basi 6mm.latr.m; sepala kteralia oblorjga 13 mm. longa 7-8 mm. lata 

 apice dorso carinata leviter cornuata 5-nervia. Petala obovato-oblouga 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 

 eessile lasi latere lobis basilaribus instnictum, lobis basilaribus triangulari- 



