Smith : Orchidaceac novae McUayenscs X. 47 



dimidio inferiore, erecto-patentibus, porrectis, oblique obloiigis, acutis, ala 

 apicali beiie brevioribus, ala apicali subquadrata, truncata, 3crenata vel 

 irre<îulariter dentata, concava, pede 0. Aiitliera abscoiidita, cucullata, rotun- 

 dato-triaiigula, apice rotiiiidata, c. 0.05 cm. lata, coiiiiectivo crasse obtuse 

 gibboso apicem non attiiigeiite. Rostellum erecto-patens, semiovale, apice 

 apiculato-productum et iiicurvulum, canaliculatum cum lateribus coiivexis. 

 Stigma cum rostello subovale, margine inferiore obtusangulum. Ovarium 

 ôsulcatum, c. 0.075 cm. longum, pedicello c. 0.12 cm. loiigo vix crassius. 



Sumatra: West-coast, Goeiioeng Merapi, 1800 m., forest. (H. A. B. 

 BuNNEMEIJER II. 4722, September 1Q18). 



I hâve given a detailed description of the variety, because it differs 

 slightly but in many respects from the type, especially in the shorter and 

 thinner leaves, the form of the midlobe of the lip, and the shorter arms of 

 the column. . 



Description from herbarium and an inflorescence preserved in alcohol. 



Dendrochilum (sect. Platyclinis) ovatum J. J. S. n. sp. 



Pseudobulbi approximati, sicco tenues, teretes, c. 5 cm. longi, novelli 

 pkiribus vaginis amplectentibus acutis praesertim superne transverse rugu- 

 losis opacis atrofusce sed non conspicue punctatis superioribus accrescen- 

 tibus ad c. 7 cm. longis tecti. Foliiun petiolatum, anguste lanceolatum, 

 parte superiore c, 6—7 cm. longa leviter contractum, acutum, apiculatum, 

 basi acutum, nervis c. 7 majoribus et numerosis tenuibus sicco subtus 

 prominentibus, firmiter papyracea, c. 14—17.5 cm. longa, 1.75— 2 cm. lata; 

 petiolus canaliculatus, c. 1.75 — l.Q cm. longus. inflorescentia in pseudobulbis 

 novellis immaturis folio evoluto synantha,laxius multiflora,pedunculo filiformi, 

 c. 7.25—13 cm. longo, rachide leviter flexuosa, compresso-quadrangula, 

 lateribus angustis canaliculata, c. 15 cm. longa, internodiis c. 0.35— 0.4 cm. 

 longis. Bracteae ovarium pedicellatum amplectentes et superantes, ovato- 

 orbiculares, obtusissimae, onerviae, c. 0.45 cm. longae, bene 0,4 cm. latae. 

 Flores médiocres, fere 1.3 cm. lati. Sepalum dorsale oblongum, brevissime 

 acutum vel subacuminatum, 3nervium, bene 0.6 cm. longum, 0.24 cm. latum. 

 Sepala lateralia divaricata, oblique ovato-oblonga, apicem versus sensim angus- 

 tata, acuta, medio canaliculata, lateribus convexa, 3nervia, costa media-dorso 

 prominente, c. 0.64 cm. longa, 0.24 cm. lata. Petala vix ovato-oblonga, acuta, 

 superne vix irregulariter marginata, 3nervia, c. 0.575 cm. longa, 0.22 cm. lata. 

 Labellum simplex, concavum, acutum, vix acuminatum, in c. '/g parte supra 

 basin utrinque denticulo obsoleto instructum, 3nervium, supra basin 3cos- 

 tatum, costis exterioribus basi tantum satis conspicuis attenuatis in c. -/j 

 partibus supra basin evanescentibus, costa tertia breviore basi dilatata et 

 incrassata interposita, costis supra basin labelli connexis, expansum c. 0.53 

 cm. longum, 0.3 cm. latum. Gynostemium brevissimum, dorso subsig- 

 moideum convexumque, c. 0.18 cm. longum, alis lateralibus porrectis, 



