- 41 - 



obtusum, basi latuin, concavum, Snerviuni, c. 0.23 cm. longum, 

 0.15 cm. latum. Sepala lateralia patentissima, cum pede gynostemii 

 inentum valde incurvum cum ovario angulum acutum faciens ob- 

 tusum formautia, oblique ovato-triaugula, basi antice dilatata, 

 obtusa, eoncava, maigine apicali incurva, c. 0.24- cm. longa, basi 

 0.3 cm. lata. Petala oblique oblongo lanceolata, dimidio superiore 

 sensim angustata, obtusa, Ineivia, c. 0.25 cm. longa, 0.08 cm. 

 lata. Labellum basi pedi gynostemii parallelum, supra basin abrup- 

 te recurvum, apice obtusangule recurvum, late spathulatum, 

 3nervium, nervis in ungue elevatulis (in tlore macerato), inexpla- 

 natum c. 0.2 cm, explanatum O.o cm. longum, ungue marginibus 

 iucurvis canaliculato, c. 0.13 cm. longo, lamina transverse ovali, 

 apice rotundata, intus incrassatione late canaliculata apiccMJilatato 

 c. 0.14 cm. lato late retusa et obtuse bilobulata puberulo papil- 

 losa in 1/3 longitudinis laminae infra apicem abrupte terminante 

 ornata, crista transversa irregulariter marginata marginem haud 

 attingente in medio laminae in utraque parte incrassationis expla- 

 nata c. 0.17 cm. longa, 0.325 cm. lata. Gynostemium ovarium 

 continuum, absque antliera c. 0.06 cm. longum, filamento subu- 

 lato^ auiiculis tilamentum aequantibus, oblique quadrangulis, trun- 

 catis. Anthera cucullata, antice visa transverse quadningula, 

 truncata, fere 0.06 cm. lata. Pes gynostemii cum ovario angulum 

 acutum vel fere rectum faciens, valde incurvus, oblongus, apice 

 vix dilatatus, valde concavus, dimidio inferiore inter margines 

 lamella utrinque adnata apice brevissime libéra obtusa excavatio- 

 nem obtegente instructus, inexplanatus fere 0.2 cm. longus. Ova- 

 rium pedicellatum c. 0.2 cm. longum. 



Bornéo: Goenoeng Paniattam. (P. W. Korthals, Herb. 

 Lugd. Bat. n. 903, 320-70). Martapoera (P. W. Korthals, 

 Herb. Lugd. Bat. n. 903, 320-80). Soengei Njerakat near Ban- 

 tang (East- Bornéo), growing on mangrove trees. (L. Rutten n. 

 480, type, April 1911). 



Near I). indioisum Miq. but with différent flowers; it is 

 easely distinguished by the strongly bent column-foot. 



According to a note ofMr. Rutten tbe tlowers are greenish 

 yellow striped violet, the spur violet. 



Description frora herbarium-speeimens. 



