Q4 Bulletin Jard. Bot. Buitenzorg, Série III, Vol. V. LivR. 1. 



dilute viridia, c. 11 cm. loiiga, 3.8 cm. lata; vagina brevis, tubulosa, margine 

 recLirva, dilute viridis. Inflorescentia laxe pluriflora, quaquaversa, pedun- 



cLilo , rachide angulata, c. 11.5 cm. ionga, internodiis cl — 1.6 



cm. iongis, facie florem versus spectante excavatis. Bracteae adpressae, 

 rachidem semiamplectentes, brèves, late triangulae, obtusissimae, concavae, 

 ad c. 0.4 cm. longae. Flores c. 10, majusculi, c. 3.25 cm. longi. Sepalum 

 dorsale erectum, apice obtusangule iiicurvum, valde concavum, oblongum, 

 apice vix contracte retusoque minutissime erosulum, dorso et iiitus ad basiii 

 parce furfuraceuFn, Snervium, c. 1.7 cm. longum, 0.7 cm. latum. Sepala 

 lateralia ad pedem gyiiostemii decurrentia, reflexa, dorso ovario adpressa, 

 deorsum spectantia, oblique obovato-rhombea, apice contracta et rotuiidata, 

 bas! obliqua, dorso et intus ad basin parce furfuracea, 5nervia, c. 1,55 cm. 

 Ionga, bene 1 cm., basi 0.7 cm. lata. Petala reflexa, basi convexa, ceterum 

 concava, oblique subspatliulato-oblonga, obtusissima, superneerosula,3nervia, 

 c. 1.4 cm. Ionga; basi 0.325 cm., superne bene 0.6 cm. lata. Labellum 

 parvulum, mobile, calcaratum, 31obum, a latere compressum, c. 0.83 cm. 

 longum, ab apice lobi iiitermedii usque apicem calcaris 0.975 cm., a basi 

 usque apicem calcaris 0.76 cm. metiens, 0.36 cm. latum, ambitu a latere 

 visum triangulum, margine postico leviter, margine antico manifeste sig- 

 moideum; lobi latérales latissimi, brevissimi, margine leviter rotundati, 

 crasse carnosi, antice incrassatione transversa alte excisa bilobula conjuncti, 

 lobulis trigonis obtusis; lobus intermedius adscendens, triangulus, satis 

 acutus, apice attenuatus, subtus convexus, c. 0.32 cm. longus ; calcar deorsum 

 spectans, pedem gynostemii continuum, vix incurvulum, leviter a latere 

 compressum, conicum, obtusum, basi ampliatum, fauce lamella horizontali 

 omnino adnata carnosula ad basin lobi intermedii tantum perforata costula 

 longitudinali instructa clausum. Gynostemium gracile, clavatum, rectum, 

 absque anthera 1.1 cm. longum, clinandrio concavo, transverse subovali. 

 Rostellum conspicuum, cum gynostermio angulum subrectum faciens. Stigma 

 magnum, concavum, orbiculare. Pes gynostemii basi ovario adnatus, cum 

 ovario angulum acutum, cum gynostemio angulum rotundato-rectum faciens, 

 incurvulus, linearis, carnosus, apice antice calloso-incrassatus, totus c. 1.1 cm. 

 longus. Ovarium sessile, tenue, ôsulcatum, apice valde obliquum, c. 2.7 cm. 

 longum. 



Sumatra: Padangsche Bovenlanden, Boekit Paloempang near Sidjoeng- 

 djoeng. (A.V. Theunissen, cuit, in Hort. E. JACOBSON sub n. 1632). 



A very interesting species with the entrance of the spur closed by a 

 horizontal plate wliich bas a hole near the base of the midlobe. 



„Ovary very light yellow. Sepals and petals dark yellow, suffused 

 with light violet, apex white. Lip white spotted violet at the base and in 

 the middle, inside light yellow with a violet ring at the mouth of the 

 spur. Column brownish yellow, apex greenish yellow, anther yellow ;foot 

 base light yellow, apex white stained with light violet." (E. jACOBSON). 



