- 37 - 



gula ad pedem gynostemii decurrentia, mentum magnum cum 

 ovario angulum acutum faciens valde incurvum conicum apice 

 ]evitei- coiitractum obtusum c. 1 — 1.2 cm. longum formantia, paten- 

 tia, margine antico brevissime connata, oblique triangula. subacuta, 

 superne convexa, c. 0.7 — 0.75 cm. longa, basi curvata c. 1.3— 1.4 

 cm. lata. Petala patentia, oblique lanceolata, obtusa vel acutius- 

 cula, convexa, c. 0.7 cm. longa, 0.2 — 0.225 cm. lata. Labellum 

 parallelum pedi gynostemii curvatum, concavum, simplex, e basi 

 cuneata pedi gynostemii bfevissime adnata oblongum, superne 

 undulatum, apice obtuse bilobura crenulatumque, lobis sinu acu- 

 tangulo separatis, intus fascia longitudinal! lineari leviter incras- 

 sata plus minusve costulata pallide flava infra apicem in maculam 

 citrinam verruculosam terminante, explanatum c. 1.65 — 1.8 cm. 

 longum, 0.73 cm. latum. Gynostemium brevissimum, cum ovario 

 angulum obtusum faciens, a dorso compressum, album, c. 0.17 

 cm. longum, clinandrio excavato, filamento subulato, auriculis 

 triangulis, acutis, anthera brevioribus. Anthera cucullata, mem- 

 branacea, antice plana' rotundato-sexangulata, apice truncata, c. 

 0.175 cm. lata. Pollinia 4, nitida, dilute tlava. Stigma quinquan- 

 gulare. Pes gynostemii cum ovario angulum acutum faciens, incur- 

 vus, linearis, apicem versus angustatus, obtusus, concavus cum 

 costula longitudinal!, albus, praesertim apicem versus purpureo-suf- 

 fusus, c. 1.1 — 1.25 cm. longus. Ovarium obconicum, ôsulcatum, 

 dilute viride, c. 0.3 — 0.73 cm. longum; pedicellus tenuior, dilute 

 viridis, c. 0.55 — 0.7 cm. longus. 



Bangka: Muntok. (Kornasi, liv. pi. cuit, in Hort. Bog.) 



Near B. capitellatum J. J. S., but with shorter stems, much 

 more compressed leaves, larger flowers, a triangular dorsal sepal etc. 

 Description from living plants. 



^ l>eii(lrol»iiim (sect. Strongyle) a(lpre!^!>iiroliiiiii J. J. 



S. n. sp. 



Rhizoma brève, repens, flexuosum, brevinode, viride, initio 

 vaginis obtectum. Gaules approximati, biseriati, serpentin!, vix 

 compressi, deinde raraosi, nitide flavovirides, foliati, c. ad 22.5 

 cm. long!, internodiis e basi tenu! apicem versus oblique incras- 

 satis, basi apiceque obliquis, c. 1.9 — 0.8 cm. longis, ad c. 0.275 



