Dendrobium. ] 85 



connatum, stelidia ovata, Capsula profunde canaliculata. — Sepala petalaque alba, 

 sepala 1,4 cm longa 5,5 v. 6,5 mm lata, petala 1,2 cm longa, 2,5 mm lata. Labellum 

 2,2 cm longum medio 6 mm latum, brunneum, carinulae luteae v. aurantiacae. — Aprili. 

 Südwestmalayische Provinz: Java: Anjer (Hasskarl), Buitenzorg (ex Smith). 

 — Sumatra: Am Indragirifluss auf Pandanus (Schlechter n. 13245!). — Singapore: 

 Bukit Mandai (Bidley n. 5029), Turong (Bidley n. 807t!). — Johore: Pulang Kukub, 

 an Sago-Palmen (ex Bidley). 



342. D. revolutum Lindl. in Bot. Beg. XXVI. (i 840) Mise. 53; Beichb. f. in 

 Walp. Ann. VI. (4 861) 29t; Paxton, Flow. Gard. I. 63, fig. 42; Bot. Mag. t. 6076; 

 Hook. f. Fl. Brit. Ind. V. 732; Grant, Orch. Burmah IIS; Bidley in Journ. Linn. Soc. 

 XXXII. 256 et Mater. Fl. Malay. Penins. I. 46; Arnes, Orchidaceae II. 184 e. p. — 

 I). refractum Teijsm. et Binnend. Tijdschr. Nederl. Ind. XXIV. (1862) 315. — Huc 

 me judice D. tonkinense de Wildem, in Tribüne Hortic. I. (1906) 2t. — Caules stricti, 

 ad 45 cm alti, sulcati; internodia 1,2 cm longa. Folia densa, disticha, lineari-oblonga 

 v. ligulata v. interdum fere elliptica, bilobula, oblusa, 3 — 5 cm longa, 1 — 2,5 cm lata. 

 Bacemi plerumque t- rarius biflori, breves, bracteae minutae. Sepalum dorsale ovato- 

 oblongum, acutum, sepala lateralia oblongo-lanceolata, acuta, mentum apertum, extinetorii- 

 forme, subcompressum formantia, omnia energice revoluta. Petala lineari-lanceolata, 

 vix tertia parte lata, acuta. Labellum multo majus, lobi laterales oblongi obtusi, lobus 

 intermedius multo major, transverse oblongus, antice retusus v. emarginatus, lineae 

 per discum 2 elevatiores, addita 1 paulo longiore additisque venis crebris, crassiusculis 

 in lobis lateralibus. Gynostemium cum basi labelli satis alte connatum et foveam an- 

 gustissimam (neetarium?) cum illo formans, pars libera gynostemii brevissima, stelidia 

 et filamentum aequalia, acuta. — Flores albi, labellum flaveolum s. brunneum, sepala 

 latei-alia fere 2 cm longa, dorsale et petala 1,5 cm longa, labellum aequilongum, 1,3 cm 

 latum. 



Südwestmal ayische Provinz: Burmah (Parish n. 1 1 2!); Singapore (Walker!); 

 Malacca (Maingay n. 2674!); Malaya (Maingay n. t6tö!); Johore: Batu Pahat; Kedah 

 Peak in tOOO m ü. d. M. (ex Bidley). — Tonking: Prov. Thua-Thien (G. Bronckart). 



Nota. Ridley v. cl. in Transact. Linn. Soc. III. 363 exposuit, quibus characteribus haud 

 njultis sed gravibus D. revolutum distingui posset a D. unifloro Griff, quod egomet speeiminibus 

 Griffithianis D. umflort examinatis siccis et compluribus D. revoluti vivis omnino probo. — 

 Quibus causis permotus cl. Oakes Arnes plantas a cl. Hooker in Botan. Mag., a Paxton in 

 opere dicto Flower Garden et a Ridley citatas ab hac specie secludat ipse non dicit et ego mi- 

 nime intellego. 



343. D. uniflorum Griff. Notul. III. (t85t) 305 et Icon. Plant. Asiat, t. 303; 

 Ridley in Trans. Linn. Soc. III. (1893) 363 et in Journ. Linn. Soc. XXXII. (1896) 

 256 et Mater. Fl. Malay. Penins. I. 46. — D. revolutum O. Arnes, Orchidac. IL (1908) 184 

 (non Lindl.). — Caulis ad 25 cm altus, gracilis, profunde sulcatus, submoniliformis, 

 multiarticulatus, foliosus. Folia brevia, oblonga, apice satis profunde biloba, utrinque 

 obtusa, semiamplexicaulia, 2 — 3 cm longa, 1,3 cm lata. Bacemi brevissimi, semper (?) 

 uniflori, ovarium cum pedicello folia aequans, bractea brevissima. Sepala ovata, acuta, 

 apice paulum reflexa, lateralia dorsali antice aequalia, postice mentum rectum, obtusum, 

 quam pars antica vix brevius formantia. Petala paulum breviora, oblonga, obtusa 

 tenera. Labellum trilobum, lobi laterales parvi oblongi, obtusi, lobus intermedius multo 

 major, obeordatus, antice bilobus, lineae elevatae per discum 3 (addita utrinque 1 minore). 

 Gynostemium perbreve, stelidia et filamentum aequalia, acuta, anthera supra dense 

 papulosa, antice retusa. — Flores albi (etiam labellum) 2,5 — 3 cm diam., phylla vix 

 revoluta. — Floret Julio, Februario (totum per annum?). 



Westmalayische Provinz: Malacca, Mt. Ophir (Griffilh n. 112!, Lobb 

 n. 152, Houllett n. 864!); Perak, Maxwell hill (Bidley). — Provinz der Philip- 

 pinen: Luzon, Prov. Bataan, Berg Mariveles (Le Boy Topping n. 476!); West- 

 Negros (Everett n. 5570); Mindanao, am See Lanao (Miss Strong Clemens 

 n. 3008). 



