— 104 — 



.angustatmn recurvum subconJuplicatum et brevissime iiiaequaliler obtuse 

 bilobulum, basi breviuscule petiolato-contractum, aciite marginatiim, plus 

 minusve obtusangule concavum cum lateribus plus iiiinusve couvexis, dorso 

 -obtusaiigule convexum et costa média leviter obtuse incrassata, cariiosum, 

 utrinque uitide dilule viride, c. 11 — 13.5 cm. lonçium, 2,5 — 3.25 cm. latum, 

 petiolo conduplicato-canalicuiato, c. 1.75-2 cm. longo. Inflorescentiae e 

 basi pseudobulborum, apice umbellam spuriam c. ^/4 oibiculi 9 — llfloram 

 gerentes, pedunculo tereti, niiide atrofusco-purpureo, c. 11 — 15 cm. lougo, 

 uonnullis vaginnlis adpressis tubulosis acuHs dorso carinatis albidis donato, 

 rachide brevissima. Bracteae laiiceolatae, ncutae, curvatae, canaiiculatae, 

 fuscescentes, ad c. 0.6 cm. longae. Flores paienlissimi, contigui, c. 0.7 cm. 

 lati. Sepalum dorsale semierectum, cum ovario angulum obtusum faciens, 

 subovatum, apice in setam ciliatam c. 0.45 cm. longam acuminatum, longe 

 ■ciliatum, valde concavum, mtide atrovinosum, basi leviter flavesceiiti- 

 maculatum, totum c. 0.8 cm. loiigum, absque ciliis 0.36 cm. latum. Sepala 

 lateralia a sepaio dorsali remote insetta, ad basiu pedis gyiiostemii decur- 

 rentia, supra basiu liberam verticalem porrectam dorso subcarinatam c.0.5 

 •cm. longam semitorta, usque ad apicem conglutinata, subrecta vel recurvula, 

 'Convexa, viscida, sordide viuosa, superne substriato-pallidiora, explanata 

 iate linearia, marginibus recurvis, apice subulato-apiculata, c. 2.3 cm. 

 longa, 0.35 cm. lata. Petala porrecta, verticalia. subrhonibeo-ovata, subulato- 

 acuminata, falcatula, longe et tenuiter ciliata, intus velutino-papillosa, fusco- 

 purpurea, basi semipellucide flavesceniia, c. 0.55 cm. longa, 0.275 cm. 

 lata. Labellum parvum, mobile, valde recurvum, linguiforme. acutum, car- 

 nosulum, valde convexum, non canaliculatum, margine utrinque supra basin 

 "dentiferum, supra interne longitudinaliter 3costatum, nitide fuscum, basi 

 apiceque flavuni, c. 35 cm. longum, basi 0.175 cm. Utum. Qynosiemium 

 -cum ovario angulum obtusum faciens, lateraliter compressum, dorso 3costa- 

 tum, subtus concavum, nitidum, albidum, apice rubro- subtus et auriculis 

 .atroviolaceo-punctatum, c. 0.27 cm. longum, apice obtuso, filamento rostrato, 

 auriculis conspicuis, Iate aliformibns, porrectis, parallelis, decurrentibus, 

 apice rotundato-truncatis, semipellucidis, antherani aequantibus. Antliera 

 cucullata, lateraliter compressa, basi bilobula, apice obtusa, flava, c. 08 

 cm. longa, thecis minuiis rubio-puncticulatis, connectivo incrassato. Rostellum 

 ■obtusum. Stigma parvum. Pes gynostemii cum ovario angulum obtusum 

 faciens, valde incurvus, linearis, apice dilatatus, truncatus, albidus, atro- 

 purpureo-punctatus, expansus c. 0.3 cm. longus. Ovarium 6sulcatum, flave- 

 scens, costis fusco-purpureum, c. 0.25 cm. longum ; pedicellus tenuior, fusco- 

 purpureus, c. 0.5 cm. longus. 



Sumatra: Medan. (Cuit, in Hort. Bog.) 



A spécimen of this plant grows together in the Botanical Gardens with 

 B. corolliferum J.J.S. var. atropurpureum J.J. S, with whicli it nearly agrées 

 in the colour of the flowers. Tue latéral sepals, however, are longer and less 

 recurved, the petals not conttacted at the base, the lip not channelled, 

 the column with différent auricles and the anther not bidentate at the apex* 



