134 ORCHIDE7K. 



Arisan. It was found on a large trunk of a Quercus at Nimandaira. Very 

 distinct for the comparatively large flowers of greenish colour. 



Cleisostoma ioncsma LIXDL. "Eot. Resist. (1847) t. 41 ; " WALP. Ann. I. 

 p. 791 ; RIDLEY in Philip. Journ. Sc. I. Supp!. (1900) p. 39 ; MAKING in Tokyo 

 Bot. Mag. XXII. p. 60. 



HAB. Formosa, loco non indicato, leg. R. W. IRWIN, Jan., 1912 ; Urai,. 

 Kashmir Terasoyama, leg. B. HAY AT A et 8. SASAKI, Aug., 1912. 



The orchid is found plentifully in the woods in Mt. Teraso. It is quite 

 common in the hilly regions of the island. 



Cleisostoma oblongisepala HAYATA sp. nov. Herba epiphytica, ra- 

 dicibus teretibus 3-4 mm. in sectionis diametro, caulibus 25 cm. longis a hasi 

 usque ad apicem foliosis, teretibus, 4-5 mm. in sectiouis diametro, vaginis 

 foliorum imbricatis caulem amplectantibus glabris. Folia crassa, viridia, glabra, 

 disticha, alterna, angustata, 10cm. longa 17mm. lata, apice aristato-acuta 

 basi abrupte contracta ad vaginam abeuntia, supra ad costas impressa, supra 

 plana, cost is et venis non visis, basi plus minus tortuosa, cum vagiuis arti- 

 culata, margine integra plus minus rtcurvabi, vagiuis cylindraceis circ. 3cm. 

 longis, ore truncato-obliquis. Racemi axillares, breves, 2 cm. longi, pauciflorati. 

 Flores apertientes 1 cm. in diametro, albicantes centro rubescentes, pedicellis. 

 brevibus (cum ovariis) 4 mm. longis triquetris, 3-costatis, bracteis brevibus 1- 

 2 mm. longis ti-iangularibus basi dilatatis pedicelltira semi-amplectantibtis. 

 Sepala posticum oblongum 7 mm. longum 4^ mm. latum, apice rotundatum 

 concavum, lateralia plus minus obliqua, breviora quam postico. Peiila obovato- 

 oblonga, 64 mm. longa, 3i nur. lata. Labellum plus minus versus apicem 

 rubesceiis, ad columnam adnatum, 4i mm. longum basi saccatum, (sacco brevi, 

 squama postica clause, squama lineari, minute hirtella,) 3-lobatum, lobis. 

 lateralibus minutis ad latus oris saccje adnatis obtusis dentiformibus, lobo 

 raedio erecto emarginato centro nmcronato, intus liirtellato. Authera 2 mm. 

 longa antice breve producta. Pollinia 4, per paria conferta, stipite hyalino ; 

 Columna apice rubescens, 3 mm. louga. 



HA]',. Botansha, leg. C. OWATAEI, 1898. The orchid was brought back to 

 the Koishikawa Garden by Mr. C. OWATAKI in his first expedition to Formosa. 



