ORCHIDE/E. 25 



tenuibus rliomboitleis alteruis irabricatis circ. 1 cm. lougis. Racemi 5-8 cm. 

 longi 8 mm. lati penduli, rhacliibus peutagouis <g -formibus filiformibus ten- 

 uibus, floribus ad uoclos subverticillatim aggregatim sitis, uodis a se circ. 

 5 mm. remotis, bracteis singulis sub flore uno sitis ovato-triangularibus If mm. 

 longis circ. 1 mm. latis apice obtusis basi hand vel vix coutractis margiiie 

 irregulariter eroso-denticulatis, pedicellis cum ovariis 2 mm. lougis. Flores 

 circ. 3 mm. lougi, sepalis petalisque retrorsum reflexis, labello antice pateuti. 

 Sepalum posticum rotundato-ovatum minus 1 mm. longum f mm. latum, apice 

 obtusum basi coutractum, lateralia ovato-triangularia valde concava 1 mm. 

 longa | mm. lata apice obtusa basi liaud coutracta. Petala liueari-oblonga plus 

 1 mm. louga minus 4- mm. plus ^ mm. lata apice obtusissiina basi vix coutracta. 

 Labelluin iu circumscriptione rectaugulare plus 2 mm. longum plus 1 mm. 

 latum planum basi | mm. latum 2-uervium basi utroque latere auriculis miuutis 

 -]- mm. latis semi-rotundatis iustructum, supra medium 2-lobatum, lobis oblongo- 

 triangularibus circ. 1 mm. longis plus I- mm. latis apice acutis basi liaud coii- 

 tractis, sinibus iuter lobos truucatis - mm. latis. Oolumua brevissima -1 mm. 

 longa | mm. lata. 



HAB. Arisan, leg B. HAYATA et S. SASAKI, Jau. 1912. 



Near Oberonia arisanensis HAYATA, but differs from it by the much 

 larger flowers with nearly obsolete or, if at all, very much smaller lateral lobes 

 of the lips and by the distinctly articulated leaves. 



Oberonia formosana HAYATA (Fig. 3, f, g), Mater. Fl. Formos. p. 309. 

 Epiphyta csespitosa, caulibus simplicibus vel rarius pauciramosis 3-5 cm. 

 longis toto lougitudine foliatis. Folia disticha sessilia alterua approximata 

 equitantia verticaliter compressa lineari-lauceolata 22 mm. louga 2J- mm. lata 

 apice aristato-acuta margine iutegra basi latere inferiore recta superiore 

 ^-> -formiter curva vaginosa caulem amplectautia crassiuscula. Spicre ter- 

 miuales cum pedunculis 8 cm. loiigse cernnae, floribus minutis 1 mm. in 

 diametro, secus rachiu iuterrupte fasciculatim dense sitis, bracteis ovato-acu- 

 minatis 1 mm. lougis reflexo-patentibus. Sepala lateralia late ovata basi cou- 

 iiata J mm. longa totiusque lata obtuso-acuta patentissima, posticum minus. 

 Petala sepalo angustiora oblouga | mm. louga J mm. lata obtusa. Labellum 

 sessile concavum rotuudatum in circumscriptione f mm. longum totiusque 



