ORCHIDEJE. 109 



metro crassiuscula supra minute villosa margine fimbriata, fimbriis 2J mm. longis, 

 ad contractionem l mm - latum, parte infra contractionem angustata 8 mm. 

 longa 2 mm. lata laevi basi subventicosa, ventriculo sub 2-lobato intus 3-nervio 

 ad nervos laterales fimbriis 2-seriatis instructo. Columna circ. 1 mm. longa ; 

 appendiculse columnales lineares, partibus liberis 3 mm. longis % mm. latis. 

 flostellum alte 2-partitum, partibus linearibus 3J mm. longis J mm. latis apice 

 truncatis. 



HAB. Kinkoho, ad 5000 ped. alt., leg. H. INABA, Aug., 1911. 



Near. Clieirostylis chinensis, but differs from it by the much larger 

 leaves which are arranged from the base of the stems to the base of the 

 peduncles. 



Arisanorchis HAYATA n. g. 



Sepala inembrauacea a basi usque ad prope apicem in tubum coalita 

 subsequalia decHnata basi antice in saccum brevissimum producta. Petala 

 sursum sepalo postico adnata deorsum libera. Labellum a basi columnse erec- 

 tum angustum petalo conforme elongato-oblongum circ. sequilatum apice non 

 dilatatum intus non callosum ecalcaratum apice desuper leviter recurvum. 

 Columna brevis apice brachio uno vel brachiis 2 erectis linearibus rostello 

 sequilongis appendiculata. Stigmata distantia utroque latere basis rostelli sita. 

 Kostellum alte 2-partitum, partibus acuminatis erectis. Clinandrium breve 

 profunde excavatum. Anthera erecta acuminata 2-locularis, loculis se separatis. 

 Polliuia sectilia, caudicula oblanceolata glandula lineari peltata inter partes 

 rostelli sita. Herba aphylla terrestris debilis. Khizoma repens tuberiferum. 

 8capi aphylli vaginis instruct! simplices erecti. Flores parvuli in racemo 

 laxiusculo dispositi breviter pedicellati. 



HAB. Formosa. Species unica. 



The new genus is more or less related to Gastrodia, Aphyllorclds, Epi- 

 pogon and Galera, in its leafless habit. It is, however, closely allied to 

 CJmrostylis in the gamophyllous perianth, deeply sinuate rostellum, sectile 

 pollinia, one or two armed columnal appendages and stigmatic tissue at the 

 base on each side of the rostellum. But it differs from it by the aphyllous 

 habit, and by the nearly included long entire labellum with no distinction 

 of a blade and claw and with no swelling at the base. 



