Smith : Orchidaceac novae Malayenses X. 41 



elevatis, beiie 0.2 cm. loiigiis, 0.3 cm. latus. Oyiiosteiiiiiim parvum, ciirvaliim, 

 dorso coiivexiim, supra visiim ambitii obovato-ovale, c. 0.14 cm. loiigum, 

 alis lateralibiis paiihim supra médium orynostemii ortis, erecto-patentibus, iiicur- 

 vulis, oblique obloiigis, ala apicali aequiiateralifer trapeziformi truncata repaii- 

 dulo-deiiticuiata coiicava paulo brevioribus, pede 0. Aiithera miiuita, cucullata, 

 breviter ovata, apice recurvo spurie truncata, coiiiiectivo basi oblique gibboso, 

 fere 0.04 cm. lata. Rostelium breviusculum, aequilateraliter trapeziforme, apicu- 

 iatum. Stigma rotundato-quadratum, margiiie elevatum. Ovarium rotundato- 

 trioonum, ôsulcatum, c. 0.1 cm. longum ; pcdicellus cum ovario aiigulum 

 oblusum facieiis, c. 0.08 cm, longus. 



Sumatra: West coast, Koriiitji Peak, 1600 m., forest. (H. A. B. BiiNNE- 

 MEIJER n. 8675, March 1920). 



in tlie form of the lip this is nearest to D. lono^icaule J. J. S., from 

 which it différs in the broader leaves, denser inflorescence, shorter lip with 

 mucli higher lamellae, broad stelidia. 



The collector describes the flowers as light brown. In the flowers 

 preserved in alcohol the midlobe of the lip shows two brown blotches 

 and the ridge Connecting the lamellae between the side lobes is also brown. 



Description from a single dried spécimen the upper part of the raceme 

 being preserved in alcohol. 



Dendrochilum (Sect. Platyclinis) duplicibrachium J. J. S, n. sp. 



Rhizoma brève, ramosum, teres, initio vaginatum. Pseudobulbi rhizoma 

 continui, approximati, elongati, tenues, teretes, apicem versus attenuati, pallide 

 opaco-virides, c. 5—11 cm. longi, basi 0.5—0.7 cm. diam., Ifolii, vaginis 

 magnis tubulosis subacuminatis acutissimis opace viridibus atrofusce furfura- 

 ceo-marmoratis ad c. 9 cm et plus longis ad basin. Folium erectum, petiolatum, 

 lanceolatum, apice canaliculatum, acutum, basi acuta abrupte in petiolum 

 coiitractum, costa média supra sulcata subtus obtuse prominente, tenuiter 

 coriaceum, supra nitidule viride, subtus opacum et minute furfuraceo-punc- 

 tatum, c. 18 cm. longum, 1.5—3.3 cm. latum, petiolo canaliculato, inferne 

 tereti cum sulco longitudinali, c. 4.25 cm. longo. Inflorescentia multiflora, 

 pedunculo filiformi, dilute viridi, furfuraceo-punctato, c. 13 cm. longo, rachide 

 pendula, flaccida, postice et antice sulco longitudinali instructa, dilute viridi, 

 c. 12.5 cm. longa, internodiis c. 0.3 cm. longis. Bracteae pedicellum 

 amplectentes et multo superantes, oblongo-triangulae, leviter acuminatae, 

 acutae, basi utrinque paulum decurrentes, trinerviae, tenerae, Snerviae, ad 

 c. 0.525 cm. longae, 0.25 cm. latae. Flores patentissimi, haud valdeaperti, sepalis 

 petalisque conniventibus, apice recurvulis, fuscis, margine inferne et basi dilute 

 viridibus. Sepalum dorsale auguste lanceolatum, apicem versus sensim angus- 

 tatum, acutum, concavum, margine recurvum, c. 0.63 cm. longum, 0.16 cm. 

 latum. Sepala lateralia oblique lanceolata, vix falcatula, apicem versus sensim 

 angustata vel plus minusve acuminata, acuta, canaliculata, margine convexo- 



