ORCHIDEJE. 



97 



II. p. 134. Herba epiphy- 

 tica, radicibus teretibus 3-4 

 mm. in sectionis diametro, 

 caulibus 25 cm. longis a basi 

 usque ad apicem foliosis 

 teretibus 4-5 mm. in sec- 

 tionis diametro, vaginis 

 foliorum imbricatis caulem 

 arnplectantibus glabris. 

 Folia crassa viridia glabra 

 disticlia alterna angustata 

 10cm. loiiga 17mm. lata 

 apice aristato-acuta basi 

 abrupte contracta ad vagi- 

 nam abeuntia supra ad 

 costas impressa, supra plana, 

 costis et venis non visis, 

 basi plus minus tortuosa cum vaginis articulata, margine integra plus minus 

 recurvata, vaginis cylindraceis circ. 3 cm. longis ore truncato-obliquis. Racemi 

 axillares breves 2 cm. longi pauciflorati. Flores apertientes 1 cm. in diametro 

 albicantes centre rubescentes, pedicellis brevibus (cum ovariis) 4 mm. longis 

 triquetris 3-costatis, bracteis brevibus 1-2 mm. longis triangularibus basi dilata- 

 tis pedicellum semi-amplectantibus. Sepala : posticum oblongum 7 mm. longum 

 4J mm. latum apice rotundatum concavum, lateralia plus minus obliqua breviora 

 quam postico. Petala obovato-oblonga 6 J mm. longa 3 mm. lata. Labellum 

 plus minus versus apicem rubescens ad columnam adnatum 4 mm. longum 

 basi saccatum, (sacco brevi squama postica clause, squama lineari minute 

 liirtella), 3-lobatum, lobis lateralibus minutis ad latus oris sacci adnatis 

 obtusis dentiformibus, lobo medio erecto emarginato centro mucronato intus 

 hirtellato. Anthera 2 mm. longa antice breve producta. Pollinia 4, per paria 

 conferta, stipite hyalino ; Columna apice rubescens 3 mm. longa. 



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

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



Pig. SO, Cleisostoma dblonglsepala HAYATA ; a, a 

 flower ; b, detached sepals and petals ; c, a labellum, 

 seen from front, vertical plate is seen ; d, the same, 

 seen from side, medially cut ; e, columna and labellum ; 

 f , an anther ; g, apical portion of the columna, seen from 

 side, pollinarium is seen ; h, the same, seen from front, 

 stigma and horseshoe-shaped glands are seen ; i, a 

 pollinarium. 



