— no - 



Sumatra: Oeloe Lima Manis. (D. Hulshoff Pol, liv.pl., cuit. in Hort.Bog.). 



Apparently uear Th. Scortcchinii RiDL.; tiie descriptions, however, do 

 not allow further comparison. 



The allied Th. a//rûnfwcw/;2 J. J. S. lias differently coloured flowers, short- 

 er side lobes, a thinner midlobe not forming an angle with the shorter sac. 



Description from a living plant. 



Thrixspermum (sect. Orsidice) 1 o n g i 1 o b u m J. J. S. n. sp. 



Caulis Folia oblongo-loriformia, obtusa, breviter inae- 



qualiter bidentata cum inucrone interposito, supra leviter convexa cuiii 

 sulco longitudinali, carnosa, c. 9 cm. longa, 2.4 cm. lata. Inflorescentiae 

 pluriflorae, pedunculo compresse, sectione transversa elliptico, apice dila- 

 tato ensiformi, nitido, parte adest c. 5.3 cm. longa, apice 0.4 cm. lata, 

 vaginulis 2 tubulosis carinatis donata, rachide compressa, nitida, c. 1.5 cm. 

 longa vel plus, cum bracteis bene 1 cm. lata, internodiis c. 0.35 cm. longis, 

 facie florem versus spectante excavatis. Bracteae approximatae, alternatim 

 bifariae, patentes, dorso continui, basi rachidem magnam partem amplec- 

 tentes, leviter curvatae, triangulae, conduplicato-concavae, valde carinatae, 

 acutae, dorso interne valde excavatae et cum excavatione rachidis cavum 

 singulum tenuiter marginatum formantes, nitidae, margine superiore c. 0.7 

 cmi. longae. Flores médiocres. Sepalum dorsale lineare, apicem versus 

 sensim angustatum, acutum, concavum, Tnervium, c. 3.5 cm. longum, 0.42 

 cm. latum. Sepala lateralia a dorsali remote inserta, oblique linearia, basi 

 talcata, apicem versus sensim angustata, acuta, concava, supra basin 7nervia, 

 c. 3.6 cm. longa, 0.45 cm. lata. Petala linearia, apicem versus sensim 

 angustata, acuta, concava, Snervia, c. 3.4 cm. longa, 0.25 cm. lata. Labellum 

 31obum, saccatum, callo incurvo antice aiigulato postice in costam papil- 

 losam in apice calcaris elevatam decurrente inter lobos latérales, totum 

 fere 1.8 cm. longum, ex apice loborum lateralium usque ad apicem calcaris 

 1 cm., ex apice ovarii usque ad apicem calcaris 0.54 cm. metiens; lobi 

 latérales erecti, falcatule porrecti, oblique trianguli, obtusi, apice vix recur- 

 vulo vixerosuli, margine antico papillosi, leviter convexi, 0.2 cm. longi; lobus 

 intermedius porrectus, cum calcari angulum obtusum faciens, subrectus, 

 elongatus, sublinearis, subteres, obtusus, exavatione triangula supra in dimi- 

 dio inferiore, apice excepto papillosus, crassus, c. 1.3 cm. longus, 0.4 cm. 

 latus; calcar brève, late saccatum, obtusissimum, leviter retusum, 0.35 cm. 

 longum, 45 cm. latum. Gynostemium brève, crassum, apice truncatum, 

 cum anthera c. 0.24 cm. longum, clinandrio aequilateraliter trapeziformi, 

 leviter concavo cum costula longitudinali. Anthera cucullata, suborbicularis, 

 apicem versus paulum dilatata, truncata. tenuis, c. 18 cm. latn. Pollinia4, 

 inaequalia, 2 antica majora, oblique oblonga, inaequaliter trigona, antice 

 convexa, c. 0.14 cm, longa, 2 postica multo minora, tenuiora, sublinearia, 

 obtusa, c. 0.1 cm. longa, stipite brevi, lato, antice convexe, dorso concavo, 

 cum appendice libéra dorso in utraque parte canaliculae longitudinalis 

 convexa obtusissima angulum obtusum faciente, tenui, cum glandula semi- 



