134 ORCHIDKK. 



Arisaii. It was found on a large trunk of a Qucrcus at Nimandaira. Very 

 distinct for the comparatively large flowers of greenish colour. 



Cleisostoma ioncsma LINDL. "Bot. Regist. (1847) t. 41 ; " W.u.r. Ann. I. 

 p. 791 ; RIDLEY in Philip. Journ. Sc. I. Suppl. (1906) p. 39 ; MAKFXO in Tokyo 

 Bot. Mag. XXII. p. CO. 



HAB. Formosa, loco non indicate, leg. 11. W. IKWIN, Jan., 1912; Urai > 

 Koshun: Terasoyama, leg. B. HAY AT A et S. 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. 



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

 dicibus teretilms 3-4 mm. in sectionis diametro, caulibus 25 cm. longis a basi 

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

 foliorum imbricatis caulem ample ctanti bus glabris. Foh'a crassa, viridia, glabra, 

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

 basi abrupte coiitracta ad vagiuam al>euntia, supra ad costas impressa, supra 

 plana, costis et venis non visis, basi plus minus tortuosa, cum vaginis arti- 

 culata, margine integra plus minus rtcurvata, vaginis cylindraceis circ. 3cm. 

 lougis, ore truncato-obliquis. Kacemi axillares, breves, 2 cm. longi, pauciflorati. 

 Flores apertientes 1 cm. in diametro, albicantes centre rubescentes, pedicel lis 

 brevibus (cum ovariis) 4 mm. longis triquetris, 3-co.statis, l^racteis brevibus 1- 

 2 mm. longis triangularibus basi dilatatis pedicellum semi-amplectanti1ju.s. 

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

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

 oblonga, 6^ mm. longa, 3^ mir. lata. Labellum plus minus versus apicem 

 rabe.scens, ad columnam adnatum, 41 mm. longum basi saccatum, (sacco brevi, 

 squama postica clauso, &quama lineari, minute liiiiella,) 3-lobatum, lobis 

 laterah'bus minutis ad latus oris sacc?e adiiatis obtusis dentiformibus, lobo 

 medio erecto emarginato centre mucronato, intus Lirtellato. Anthera 2 mm. 

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

 Columna apice rubescens, 3 mm. longa. 



HAB. Botansha, leg. C. OWATAP.I, 1898. The orchid was brought back to 

 the Koislukawa Garden by Mr. C. O\v ATARI in his first expedition to Formosa. 



