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ocris, ochrascens, subsemipellucidus, tener, c. 2.35 cm. longus. 

 Sepalum dorsale ovatum, obtusiusculum, convexum, 5nervium, c. 

 1.25 cm. longum, 0.6 cm. latum. Sepala lateralia lacinia oblique 

 triangula ad pedem gynostemii decurrentiâ, mentum conicum cum 

 ovario angulum acutum faciens incurvulum obtusum c. 1.1 cm. 

 longum forniantia, marglnibus anticis libéra, parte antica ])orrecta, 

 obliciue triangula, acuta, concava, dorso apicem versus caiinata, 

 c. 1.4 cm., uspue ad apicera menti 2.1 cm. longa, basi curvata 

 c. 1.4 cm. lata. Petala subrhombeooblonga, obtusa, basi angus- 

 tata, convexa, superne erosula, c. 1.23 cm. longa, 0.5 cm. lata. 

 Labellum supra basin erectam recurvum, concavum, e basi cu- 

 neata ambitu oblongo-quadrangulura, vix trilobum, intus fere 

 omnino sed marginem versus par-ce verruculosum, fascia longi- 

 tudinal! leviter 3costata apice verrucosa et aurea a basi usque ad 

 1/4 partem infra apicem producta, pallide ochrascens. intus mar- 

 gine excepto extus basi tantura dilute purpureo-punctatum, expla- 

 natum c. 2.2 cm. longum, ad lobos latérales bene 1 cm. latum, ungue 

 cuneato, c. 0.6 cm. longo, lobis lateralibus brevissimis, rotundatis, 

 erosulis, lobo intermedio magno, quadrangulo, superne paulo di- 

 latato, apice latissimo rotundato-bilobo et erosulo, c. 1.2 cm. lato. 

 Gynostemium dilute aureum, c. 0.35 cm. longum, filamento line- 

 ari-subulato, auriculis triangulis, apice falcato-iecurvis et plus 

 minusve serrulatis. Anthera cucullata, antice suborbicularis, apicem 

 versus angustata, deinde in membranam latam dilatata, truncata 

 et margine puberula, dorso rotundata, flavescenti alba, c. 0.23 

 cm. lata. Pollinia 4, elongato-pyriformia, flava, c. 0.17 cm. longa, 

 exteriora extus convexa, interiora quam exteriora bene tenuiora. 

 Stigma longitudinale, basi rotundata, apice truncata. Pes gynoste- 

 mii cum ovario angulum acutum faciens, in 1/3 supra basin 

 leviter obtusangule incurvus, apice breviter hamato-incurvus, li- 

 nearis, apicem versus longitudinaliter canaliculatus, dilute aureus, 

 dilute purpureo-notatus, bene 1 cm. longus. Ovarium Gsulcatum, 

 nitidum, pallide viride, purpureo suffusum, c.0.6 cm. longum ; pe- 

 dicellus virescens, vix purpureo-suffusus, c. 1.25 cm. longus. 



Sumatra: Padang Pandjang. (Cuit, in Hort. Bog.). 



This species flowered for tlie first time in tlie Botanical 

 Gardens in the beginning of 1917, although it bas been in culti- 

 vation for several years. 



