Smith : Orchidaceac novae Malayenscs X. 33 



basi f^ynostemio adpressum, supra médium valde abrupte coutractum, 3ner- 

 vium, totum 0.24 cm. longum, hypocliylio cariioso, ambitu transverse qua- 

 dran^^ulo, margine tenu! et miiiutissime erosulo-papilloso, basi truiicato, 

 costis 2 remotis coiispicuis basi altis aiitice decrescentibus et evanescentibus 

 sectione traiisversa triaiigulis donato, subtiis basi coiicavo deinde convexo- 

 incrassato cum sulco longitudinal! iiiconspicuo, c. 0.14 cm. longo, 0.15 cm. 

 lato, epichylio angusto, oblongo, apice recurvulo obtuso, tenui, Inervio, 

 c. 0.1 cm. longo, 0.06 cm. lato. Gynostemium curvatum, c. 0.26 cm. longum, 

 ala apicali triangulo, concavo, apice recurvulo minute 2dentato, aiis latera- 

 iibus pàuium infra médium ortis, porrectis, cum gynostemio angulum acutum 

 facientibus, oblique lineari-subulatis, ala apicali brevioribus, pede distincto, 

 brevi, truncato. Antlicra abscondita, cucullata, transverse ovali-reiiiformis, 

 obtusissima, connectivo gibboso, c. 0.07 cm. lata. Poliinia 4, brevia, obo- 

 vata. Rostellum triangulum, acutum, recurvulum. Stigma margine inferiore 

 elevatum recûrvumque. Ovarium 6sulcatum, vix 0.1 cm. longum, cum 

 pedicello 0.275 cm. longo sigmoideum. 



Sumatra: West coast, Korintji Peak, 1400 m., epiphytical in forest. 

 (H. A. B. BuNNEMEljER n. 8642, March 1920). 



A very distinct species with the lip from a broad base abruptly con- 

 tracted into a narrow oblong epichyl. 



Only the upper part of a stem has been collected. The flowers are 

 said to be light green. 



Description from herbarium and an inflorescence preserved in 

 alcohol. 



Dendrochilum (sect. Monochlamys) acuminatum J. J. S. in Rec. trav. 

 bot. néerl. 1. 



var. laxum J. J. S. n. var. 



Rhizoma elongatum, ramosum, teres, etiam superne radicans, vaginis 

 tubulosis dense nervosis leviter punctatis inferioribus obtusis et internodiis 

 brevioribus superioribus accrescentibus acutis ad c. 2.8 cm. longis tectum, 

 internodiis ad c. 2.2 cm. longis. Pseudobulbi c. 4—6.5 cm. dissiti, rhizoma 

 continui, cum ramis angulum acutum facientes, sicco teretes, tenues, c. 1 .2 — 2 

 cm. longi. Folium subovato-lanceolatum, longe infra apicem contractum et 

 sensim angustatum, obtusum, breviter apiculatum, basi satis abrupte in peti- 

 olum angustatum, nervis c. 7 majoribus subtus prominentibus, sicco rigi- 

 diuscule papyraceum, ad c. 8.5 cm. longum, 1.8 cm. latum ; petiolus cana- 

 liculatus, c. 0.6 cm. longus. Inflorescentia in pseudobulbo immaturo, folio 

 fere evoluto synantha, elongata, nutans, laxe multiflora, pedunculo filiformi, 

 c. 4.25—5.5 cm. longo, rachide lateraliter compresso-quadrangula, lateribus 

 angustis canaliculata, c. 17 — 22 cm. longa, internodiis c. 0.275—0.3 cm. 

 longis. Bracteae pedicellum amplectentes, late semiorbiculari-triangulae, 

 obtusissimae, interdum brevissime apiculatae, basi breviter contractae, 



