- 50 - 



c. 1.7—1.8 cm. longa, obtuse angustata, furfuracea. Bracteae ovatae, acutae, 

 ad c. 1.25 cm. longae, 0.8 cm. latae, superiores minores. Petala oblique 

 obloiiga, falcatula, obtiisa. Pes gynostemii infra apicem callo anguste conico 

 papilloso iiistructus. 



Sumatra: Palembang, Goenoeng Dempoe, 2000 m. (Exp. E. JACOBSON, 

 AjOEB n. ^80, August 1916). 



Differs from the Javanese type by the more flowered inflorescences 

 and the form of the callus on the column foot. 

 The flowers are yellow with red spots. 



E r i a (sect. Cylindrolobus) J e n s e n i a n a J. J. S. n. sp. 



Caules elongati, notantes, teretes, c. 50 cm. longi, 0.6 cm. diam., foliati, 

 basi vaginis tubulosis nitide viridibus tecti, internodiis ad c. 2.5 cm longis. 

 Folia semiamplexicaulia. lanceolata, apicem versus angustata, valde oblique 

 anguste obtusa vel acutiuscula, costa média supra sulcata subtus promi- 

 nente, carnosula, nitide viridia, c. 10 cm. longa, 2.3 cm. lata ; vaginae 

 tubulosae, dorso costa média decurrente leviter costulaïae, internodia aequan- 

 tes, virides. Inflorescentiae in excavationibus ad nodos cauiium, brevissimae, 

 subsessiles. c. 2florae, pedunculo cum rachide c. 0.65 cm. longo, dilute 

 viridi. Bracteae c. 3—4, patentissimae, ovatae, obtusae, subplanae, carno- 

 sulae, virescenti-flavae, ad c. 1 cm. longae, 0.55 cm. latae. Flores paulum 

 aperti, leviter odorati, c. 0.65 cm. lati, 0.85 cm. longi, sepalis carnosulis 

 petalisque parallelis, nitide albis. Sepalum dorsale ovato-triangulum, apicem 

 versus angustatum, anguste obtusum, minute apiculatum, valde concavum, 

 3nervium, c. 0.9 cm. longum, 0.4 cm. latum. Sepala lateralia oblique trian-' 

 gula, falcata, acutiuscula, minute apiculata, concava, 3nervia, c. 0.77 cm. 

 longa, basi 0.5 cm. lata. Petala oblique elliptico-oblonga, falcatula, acutius- 

 cula, concava, marginem versus tenuiora, c. 067 cm. longa, 0.2 cm. lata. 

 Labellum gynostemium amplectens et superans, canaliculato-concavum, 

 31obum, album, basi sulphureum et flavo-brunneo-maculatum, 7costatum, 

 costis latiusculis valde approximatis sulcis tantum separatis sulphureis, 

 costis exterioribus bene dimidio inferiore pilis clavatis dense vestitis ad 

 basin lobi intermedii terminantibus parte superiore altioribus glabris et 

 albis, costa intermedia omnino pilis clavatis dense vestita, in lobum inter- 

 medium exeunte. apice brunnea, explanatum totum ambitu obovatum, c. 0.6 

 cm. longum, 0.45 cm. latum ; lobi latérales erecti, porrecti, trianguli, obtusi, 

 concavi, margine antico ilavi; lobus intermedius porrectus, latérales subae- 

 quans, parvus, margiiiibus lateralibus valde incurvis, transverse ovato-ovalis, 

 subreniformis, cum apiculo triangulo obtuso, intus pilis clavatis dense 

 vestitus, flavus et brunneus. Gynostemium longiusculum, subrectum, apice 

 contractum, dorso convexum, album, c. 0.4 cm. longum. auriculis conspi- 

 cuis, obtusis, concavis. Anthera auriculas superans. cucullata, obtusa, albida, 

 PoUinia 8, lateraliter compressa, triangulo-pyriformia, flavescenti-albida. 

 Stigma magnum. Pes gynostemii cum ovario angulum acutum faciens, rectus 



