40 



bracteis tubiformibus 1-2 instructis, pedicellis 10 mm. longis a se angulo 

 80 egressis. Flores subclausi non patentes 30 mm. longi. Sepala erecta lan- 

 ceolato-linearia flavescentia medio extus purpreo-maculato-punctata ; posticum 

 30 mm. longum deorsum lanceolatum sursum lineare revoluto-filiforme, 

 supra basin latissimum 3 J- mm. latum, lateralia postico aequilonga leviter 

 latiora basi obliqna cum pede columnse connata mentum 5 mm. longum 

 formantia, mento antice recurvo. Petala sepalo sequilonga angustiora. 

 Labellum 3-lobum margine mnbriato-denticulatum, disco piloso. 



HAB. Maisha, leg. B. HAYATA et S. SASAKI, Aug. 1912. 



Near D. Uftorum SWAKTZ (PnrzER, in Pfl.-reicli. IV. 50, II. B. 21. p. 

 168, fig. 11, A-D.) ; but differs from it in having lips with pilose discs. 



Dendrobium heishanense HAYATA sp. nov. (Fig. 13, c). Epiphyta. 

 Rhizoma ramosa tenue in truncos arboris repens, caulibus approximatim sitis. 

 Caulis 30-40 cm. longus teres sursum latissimus deorsum minus latus basi 

 dilatatus medio 4-5 mm. latus basi supra partem clilalatam 2 mm. latus, 

 partibus dilatatis conicis 5 mm. longis 6 mm. latis, radicibus sub parte 

 dilatata dense sitis, intemodiis mediis 3|- cm. lougis, inferioribus clavatis 

 subnudis, superioribus cylindricis vagina obtectis, vaginis cylindricis cum in- 

 temodiis aequilongis ore truncatis. Folia lanceolata 6 cm. longa 8 mm. lata 

 apice acuminata vel obtuso-attenuata basi contracta basi tortuosa in exsiccato 

 tenuiter chartacea cum vaginis articulata. Kacemi laterales ad nodos 

 superiores siti brevissimi dense florati, bracteis basi imbricatis ovato-triaugulari- 

 bus valde concavis scariosis 3-5 mm. longis, pedicellis 18 mm. longis gracilibus, 

 ovariis brevissimis 2 mm. longis 1|- mm. latis. Flores albo-rosei 2-2 cm. 

 in diametro. Sepalum posticum ovato-oblongum 18 mm. longum 6 mm. latum 

 apice obtuso-acutum basi contractum 5-nervium, lateralia oblique ovato- 

 triangularia 2 cm. longa basi 1 cm. lata apice obtuso-acuta basi cum pede 

 columnse connata mentum 8 mm. longum v_/-formiter recurvum formantia 

 5-nervia. Petala oblonga 18 mm. longa 6 mm. lata apice obtusa basi cuneata 

 manifeste 3-nervia vel obscure 5-nervia. Labellum late rhomboideum 17 mm. 

 longum 13 mm. latum ad basin contractum ad apicem menti affixum 3-lobatum, 

 lobis lateralibus (basiralibus) triangularibus 4-3 mm. longis erectis apica 

 obtusis, lobo terminali triangulari-oblongo 10 mm. longo 7 mm. lato apice 



