66 Bulletin Jard. Bot. Buitenzorg, Série 111, Vol. V. Livr. i. 



porrecta, subparallela, oblique lanceoiata, subuiato-acuminata, acuta, valde 

 angulato-caiialiculata cum lateribus convexis, costa média subtus prominente, 

 apice pallide viridia, c 3 cm. longa, 0.8 cm. lata. Petala porrecta, recurva, 

 subspathulato-rhombea, apice leviter triangulo-contracta, brevissime acute 

 acuminata, basi apiceque albida, c. 3.2 cm. longa, basi 0.15 cm., in ^/g 

 partibus supra basin 13 cm. lata. Labellum marginibus loborum lateralium 

 incurvis contiguis tubulosum, gynostemium iiicludens, apice valde recurvum 

 et undulatum, subtrilobum, subtus sulcis 2 longitudiiialibus instructum, iiitus 

 3costatum, costis exterioribus altioribus supra basin altissimis et in dentem 

 reversum falcatum crenulatum exeuntibus basi crenulatis deinde leviter rugu- 

 losis in basi lobi intermedii crispatis crenulatisque deinde sensimevanescentibus 

 papillosisque, costa intermedia muito minore sed apice quam exteriores 

 magis conspicua et papillosa, intus papillosum, subtus albidum, intus fascia 

 mediana usque sinum lobi intermedii alba longitudinaliter purpuree 

 striolata et punctata, explanatum c 3.4 cm., usque apicem loborum 

 lateralium 2.35 cm. longum, ad lobos latérales 2.55 cm. latum ; lobi latérales 

 incurvi, a lobo intermedio sinu tantum sejuncti, antice rotundati et undulati, 

 dilute purpurei, explanati hypochylium e basi subrotundata obverse trian- 

 gulum formantes; lobus intermedius valde recurvus, semiovalis, rotundatus, 

 breviuscule rotundato-bilobus cum apiculo conico albo in sinu, valde 

 undulatus, fascia mediana excepta purpureus, c. 1.45 cm. longus, 1.7 cm. 

 latus, lobulis c. 0.45 cm longis. Gynostemium gracile, vix curvulum, 

 album, dorso versus apicem purpureo-suffusum, subtus subtiliter longi- 

 tudinaliter purpureo-striolatum, c. 1.6 cm. longum, apice 0.33 cm, latum, 

 clinandrio quadrato, praesertim medio alte excavato, margine eroso, margine 

 postico bidentato, auriculis late triangulis, interdum emarginatis, erosulis. 

 Anthera cucuUata, apice dilatata et submembranaceo-producta, late rotundata 

 emarginataque, basi bilobula, alba, c. 0.22 cm. lata. Pollinia 8, inaequalia, 

 a latere compressa, pallide flava, oblonga, 2 postica minima trapeziformia. 

 Rostellum magnum, convexum, plicis conspicuis 31obulum, album, gyno- 

 stemio aequilatum. Stigma parvum, sub rostello recurvo absconditum, alte 

 excavatum, margine inferiore elevato, recurvo, aequilateraliter trapeziformi, 

 2dentato. Ovarium 6sulcatum, pallide viridi-flavum, facie soli exposita 

 purpureo-suffusum, c. 1.65 cm. longum. Capsula subcylindrico-oblonga, 

 facie inferiore subapplanata, valde 6costata, apice obtusa et floris reliquiis 

 coronata, basi abrupte in pedicellum contracta, c. 2.7 cm. longa, 0.75 cm. 

 diam., rimis 6 in-valvas lineares basi apiceque connatas dehiscens, pedicello 

 c. 0.7 cm. longo. 



Bornéo: In tlie Western part. (O. GravenhoRST, liv. pi, cuit, in Hort. 

 J. J. Smith). Soengci Ikang. (Exp. A, W. Nieuwenhuis 1896-'Q7, Jaheri 

 n. 1185). 



A. revoliita HOOK F. was apparently described from living spécimens, 

 the colour of tlie flowers being given ratlier fully. If so tlie variety described 



