— 115 — 



coiivexus, cariiosus, dorso 0075 cm., aiitico 0.1 cm. Ioiiîtus. Ovarium 

 sessile, teres, 6sulcatum, c. 0.35 cm. longiiin. Fructiis immaturus sessilis, 

 subcyliiidriciis. 



Sumatra: Goeiioeng Singgalang, 1600 m. (E. Jacobson, cuit. sub. 

 nrs. 1295 and 1581). 



Near S. pusillum Bl., which it much resembies in habit, but witli narrower 

 sepals, a much shorter spur, produced midlobe, narrower caudicle. etc. 



«Plant greyish green, leaves in part somewhat dotted purple brovvn 

 beneath, sepals and petals transparently white, a little yellowish green 

 at the base, and transversily dotted purple inside; lip waxy white, side 

 lobes and posterior margin of spur entrance light ochreous; column trans- 

 parently light green; anther light yellow " (E. Jacobson). 



Description from spécimens preserved in alcohol. 



A d e n o n c G s u n i f I o r a J.JS. n, sp. 



Caulis brevis, dependens, apice incurvus, teres, dilute viridis, c. 5.5 cm. 

 longus, 0.2 cm, diam., internodiis c. 0.5—0.75 cm. longis, Folia patentia, 

 lanceolata, breviter inaequaliter bidentata cum mucrone longiore lateraliter 

 compresso interposito, erosula, supra in utraque parte costae mediae cana- 

 liculatae convexa, subtus obtusangule convexa, crasse carnosa, rigida, supra 

 nitide dilute viridia, subtus subopaca, c. 3—3.7 cm. longa, 0.8 — 1.15 cm. 

 lata; vaginae tubulosae, internodia paulum snperantes, apice subtruncatae, 

 sectione transversa ovales, transverse rugosae, nitide dilute virides, apice c. 

 0.4 cm. latae. Inflorescentiae solitariae, vaginam dorso perforantes, brevissimae, 

 Iflorae, pedunculo valde abbreviato, subnullo, nonnullis vaginulis amplecten- 

 tibus brevibus latis basi tubulosis obtusissimis antice excisis dorso carinatis 

 nitidis pallidis dorso virescentibus ad c. 0.45 cm. longis donato. Bractea 

 concava, dorso obtuse carinata, nitidula, pallide virescens, c. 0.375 cm. longa. 

 Flos mediocris, carnosulus, dilute viridis, sepalis petalisque nitidulis incurvis 

 scutelliformis, c. 0.7 cm. latus. Sepalum dorsale ovato-triangulum, apice 

 leviter contractum et rotundatum, dorso longiuscule conico-apiculatum, 

 concavutn, c. 0.475 cm. longum, bene 0.3 cm. latum. Sepala lateralia oblique 

 elliptica, longe acute conico-apiculata, basi vix contracta, concava, dorso 

 versus apicem carinata, c. 0.6 cm. longa, 0.325 cm. lata. Petala oblique 

 lineari-oblonga vel lanceolata, apice breviter subacute acutata, leviter con- 

 vexa, c. 0.42 cm. longa, bene 0.1 cm. lata. Labellum porrectum, subincur- 

 vulum, 31obum, ambitu cuneato-quadrangulum, apice leviter rotundato-trun- 

 catum, cum callo conspicuo conico porrecto, excavatione longitudinali 

 quadraiigula superne dilatata cum costa alta longitudinali farinosa alba in 

 parte inferiore, subtus convexum cum canalicula levi longitudinali, carnosum, 

 nitidissimum, dilute viride, basi virescenti-albidum, totum c 0.6 cm. longum, 

 apice bene 0.5 cm., basi 0.275 cm. latum, costa 0.24 cm. longa, lobis 

 lateralibus basilaribus, parvis, erectis, triangulis, acutis, erosulis, tenuibus, 

 albis, margine antico inter marginem labelli. Gynostemium brève, latum, a 



