Smith : OrchUiaceae novae Malaycnses X. 59 



acuta siilpetiolato-coniractiini, nervis 3 majoribus et pliiribus minoribus 

 subtils promiiientibus, costa média su|")ra ad basin siilcata, papyiaceum, 

 c. 4.25-4.75 cm. ioii<^iim, 0.3-0.4 cm. latiim ; petioiiis caiialiculatus, 

 c' 0.75—1 cm. loiii>"us. Iiiflorescentia in pseudobulbo immaturo folio fere 

 evoluto synantlia, laxe pluriflora, pedunculo tenuiter filiformi, c. 2.9—3.25 cm. 

 longo, rachide torta, leviter flexuosa, lateraliter compresso-qiiadrangula, 

 c. 5—6 cm. longa, internodiis c. 0.35-0.375 cm. iongis. Bracteae patentis- 

 simae, rhombeae, acutae, apiciilatae, marginibus invokitae, Ineiviae, parce 

 punctatae, infima interdum sterilis, ad c. 0.4 cm. longae, 0.2 cm. iatae. 

 Flores c. 14, i3atentissimi, parvi, valde aperti, c. 0.4 cm. lati, 0.7 cm. longi. 

 Sepalum dorsale infra médium incurvulum, apice recurvulum, subovato- 

 oblongum, acutum, subulato-apiculatum, angulato-concavum cum lateribus 

 convexis, Inervium, c. 0.37 cm. longum, 0.125 cm. latum. Sepala lateraiia 

 deorsum spectantia, divergentia, oblique ovato-oblonga, acuminata, acuta, 

 subulato-apiculata, obtusangule canaliculata cum lateribus convexis, costa 

 média dorso prominente, nervo 1 tenui addito, c. 0.375 cm. longa, 0.13 cm. 

 lata. Petala patentissima, incurvula, oblique sublinearia, supra basin vix 

 contracta, breviter acuminata, vix erosula, leviter canaliculata cum lateribus 

 convexis, costa média praesertim superne dorso prominente, Inervia, bene 

 0.3 cm. longa, 0.075 cm. lata. Labellum a gynostemio patentissimum, cum 

 gynostemio et ovario angulos subrectos faciens, 31obum, supra basin 

 obtusangule recurvum, callo carnoso transverso elliptico margine elevato 

 margine postico stigmati arcte adpresso ad basin inter lobos latérales, 

 lamella longitudinali semiovali rotundata extrorsum decumbente crassiuscula 

 in utraque calli parte ad basin loborum lateralium, explanatum totum c. 0.27 

 cm. longum, 0.3 cm. ad lobos latérales latum; lobi latérales basilares, 

 patentissimi, adscendenles, cum iobo intermedio angulum obtusum facientes, 

 oblique trianguli, margine postico basi in lobulum rotundato-triangulum 

 reversum dilatati, ceterum erosi, medio vel paulo supra médium obtusangule 

 incurvi subulatique, c. 0.1 cm. longi, 0.06 cm. lati; lobus intermedius 

 oblongus, ultra médium leviter dilatatus, deinde angustatus irregulariter 

 marginatus et breviter acute apiculato-acuminatus, rectus, leviter convexus, 

 apice recurvulus et canaliculatus, dorso concavus cum costa longitudinali, 

 fere 0.25 cm. longus, 0.8 cm. latus. Gynostemium brève, latum, ambitu 

 late ovatum, dorso obtusangule convexum, subtus concavum, 31obum, 

 c. 0.13 cm. longum, alis lateralibus in dimidio inferiore, patentibus, oblique 

 rotundato-quadrangulis, margine antico ala apicali auguste obtectis, ala api- 

 cali bene brevioribus, ala apicali subsemiorbiculari, truncato-rotundata, iiite- 

 gerrima, filamento triangulo, pede obsoleto. Anthera sub ala abscondita, 

 cucullata, late ovato-triangula, apice leviter contracta, truncata, basi reverse 

 bilobula, connectivo crasse gibboso, c. 0,06 cm. lata. Pollinia 4, geminata, 

 pyriformi-clavata, caudiculis inaequilongis filiformibus, c. 0.05 cm. longa. 

 Rostellum patens, subsemiorbiculare, apice recurvulum, incurvule apiculatum, 

 medio canaliculatum. Stigma transversum, margine inferiore valde elevatum 



