- 54 - 



sinu, superne crispulum et subcrenulatum, costis 2 latis convexis 

 parallelis superne evanescentibus superne margine excepto dense 

 verrucis minutis in seriebus longitudinalibus dispositis obtectum, 

 subtus esulcatum, inferne vix rubro-suffusum, in -j^ partibus 

 supra basin leviter rubro punctatum, inexplanatum bene 1 cm., 

 explanatum 1.4 cm. longum, 0.675 cm. latum. Gynostemium cum 

 • ovario angulum obtusum faciens, dorso infra antheram gibbosum, 

 album, c. 0.1 cm. longum, filamento subulato, auriculis triangulis, 

 obtusis, minute erosulis. Anthera cucullata, antice visa quinquan- 

 gularis, dorso gibbosa, apice truncata et puberula, alba, c. 0.175 

 cm. lata. Polllnia 4, oblique oblongo obovata, lateraliter com- 

 pressa, exteriora extus convexa, nitide alba, c. 18 cm. longa. 

 Stigma quadrangulum, basin versus dilatatum, margine inferiore 

 rotundatum, margine superiore dente deflexum triangulum acutum 

 stigma partim obtegentem instructum. Pes gynostemii cum ovario 

 angulum subructum faciens, infra médium incurvulus, linearis, 

 apicem versus angustatus, concavus, excavationc longitudinal! cum 

 costula longitudinali ad apicem, pallide tlavus, rubescenti-puncta- 

 tus, c. 0.84 cm. longus. Ovarium Osulcatum, opacum, pallide 

 viride, c. 0.5 cm. longum; pedicellus tenuior, cum ovario angulum 

 rectum formans (an semper?), viridi-album, nitidum, fere 0.5 cm. 

 longum. 



Sumatra: Benkoelen, Bnekit Kaba, Soeban Ajam, 1200 m. 

 (Exp. E Jacobson 1915, Ajoeb, liv. pi. cuit, in Hort. Bog.). 



An inconspicuous species, which perhaps best is to be ascrib- 

 ed to the section Calcarifora, though the hornlike appendix at 

 the base of the lip is wanting. The species is characterized by 

 the acute mentura and the curions transverse fold ad the base 

 of the lip. 



Description from a living spécimen. 



o l^eiiflrol»iiiiii (sect. Calcarifera) viriflilopahiiii J. J. 



S. n. sp. 



Gaules approximati, e basi tenui sectione transversa elliptica 

 clavati, flexuosi, ad c. 24 cm. longi, inferne s. 0.23 cm., superne 

 a<i c. 0.95 cm. lati, inferne vaginis opace viridibus sordide punc- 

 tatis tecti, superne foliati.. Folia patentia, basi semitorta, oblonga, 

 apice recurva, oblique acuta, vix acuminata, costa média supra 



