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Ovariuin 6sulcatum, fuscescenti-viride, c. 0.35 cm. loiigum^ 

 CLim pedicello tenui c. 0.6 cm. longo clavatum, nitidum. 



Sûdost-Borneo : Kota Waringin. (C. van Nouhuys n. 9, 

 leb. Pfl. kult. in Hort. Bog.). 



Nahe verwandt mit D. metachilinum Rchb. f., wenigstens 

 mit der Pflanze, die icli dafur halte, aber sofort zu unterkennen 

 an das kûrzere, zurûckgekrûmmte Kinn, die spateligen Petalen 

 und vie] starker ausgebildeten Seitenlappen. 



Deiitlroliiiiiii j^quarroîmini J. J.S. n. sp. 



Gaules approximatif elongati, flexuosi, angulati, c. 7sulcati, 

 nitide virides, c. 87 cm. longi, 0.45 — 0.5 cm. diam., internodiis 

 c. 0.9 — 1.6 cm. longis. Folia patentia, arcuata, oblique linearia, 

 saepe subfalcatula, apicem versus sensim angustata, acuta, supra 

 plana vel leviter concava cum sulco longitudinali, subtus con- 

 vexa cum sulco longitudinali, novella nigro-pubescentia, glabrata, 

 rigida, crassiuscula, nitidule atroviridia, c. 4 — 8 cm. longa, basi 

 0.2 — 0.4 cm. lata; vaginae tubulosae, internodia paulo supe- 

 rantes, initio opace sordide virides vel flavescenti-virides, nigro- 

 hirsutae, deinde glabratae et dilute flavescenti-griseae. Inflore- 

 scentiae 2 vaginas perforantes, abbreviatae, c. 2florae, rachide 

 viridi. Bracteae adpressae, oblongae, obtusae, concavae, c. 0.15 

 cm. longae. Flores minusculi, nitidi, albidi, aurantiacostriati, 

 c. 1.1 — 1.25 cm. lati, 1.3 cm. longi. Sepalum dorsale reflexum, 

 ovali-oblongum, apice contractum, obtusum, convexum, basi 

 3- supra basin 5nervium, nervis intus extusque leviter promi- 

 nenlibus, c. 0.7 cm. longum, 0.375 cm. latum. Sepala lateralia 

 lacinia oblique oblongo-triangula ad pedem gynostemii decur- 

 rentia, mentum reversum antice apertum obtusum 21obulum c. 

 0.54 cm. longum formantia, oblique recurva, oblique oblonga, 

 apice breviter apiculato-contracta, obtusa, convexa, nervis 5 intus 

 extusque leviter prominentibus, c. 0.7 cm., usque ad apicem 

 menti 1.35 cm. longa, basi 0.76 cm., supra basin transverse 

 0.425 cm. lata. Petala revoluta, oblique linearia, subfalcatula, 

 breviter acuta, convexa, Inervia, c. 0.725 cm. longa, 0.1 cm. 

 lata. Labellum basi pedi gynostemii longitudine c. 0.275 cm. 

 adnatum, parallelum pedi gynostemii et gynostemio erectum, con- 

 cavum, apice 3lobum. intus 3costatuin, costis exterioiibus basin 



