336 Fr. Kränzlin. — Orchidaceae-Monandrae-Dendrobiinae. Pars 1. 



paucis singulis succedaneis, mento angulato, obtuso, ovario pedicellato quater breviore, 

 sepalis lineari-lateralibus-lanceis, mentum modicum obtusum formantibus, longe caudatis, 

 petalis multo angustioribus, labello trifido, laciniis posticis semiovatis, antice serratis 

 parvis, lacinia mediana lineari, acuta, porrecta, sepala dimidia attingente, utrinque pecti- 

 nato-lacero, antice tantum serrato-denticulato. — Flores purpurei. « — Sepala cum 

 caudis 6 cm longa, basi 3 mm lata, petala 5 cm longa angustiora, labellum 1,5 cm 

 longum. 



Melanesische Provinz: Viti-Inseln (eingeführt von Veitch). 



Nota. Labelli lobi intermedii fabrica inter omnes species generis facillime distinguenda. 



1 0. D. hydrophilum (J. J. Smith) Kränzl. — Dendrobium hydrophilum J. J. Smith 

 in Bull. Dep. agric. Ind. neerl. N. 19. (1908) 17 et in Nova Guin. VIII. T. 1. 56 tab. 

 XXI. 65. — Pseudobulbi congesti, e basi oblongo-ovoidea in collum tenue angulatum 

 angustati, ipsi 1,4 cm longi, 6 — 7 mm crassi, collum 12,5 — 19 cm longum, 1,5 mm 

 diam. Folia singula, erecta, linearia, apice biloba, obtusangulo-concava, juxta nervum 

 medianum utrinque convexa, coriacea, nitida, subtus pallidiora, ad 1 2,5 cm longa, 

 5 mm lata. Spatha complicata, coriacea, ad 1,8 cm longa, flores succedanei, singuli, 

 pro sectione parvi, extus dilute lilacini, intus flavi. Sepalum dorsale e basi oblongo- 

 triangula angustatum, lateralia e basi valde obliqua falcato-triangula, antice linearia. 

 Petala angustissime linearia, haec omnia 1,5 cm longa, sepalum dorsale basi 3 mm, 

 lateralia 5,5 mm, petala I mm lata. Labellum expansum toto ambitu rbombeum, lobi 

 laterales trianguli, antice leviter incurvi, subfalcatuli, acuti, lobus intermedius ab illis 

 sinu conspicuo separatus, rhombeus, obtuse acutatus, leviter complicatus, margine basin 

 versus crispatulus; cristae in disco 2 albae, antice purpureo-maculatae, vix pilosae, la- 

 bellum basi flavum, striis atropurpureis notatum, antice album, 9 mm longum, 6 mm 

 latum. Gynostemium album, antice macula purpurea notatum, filamentum acuminatum, 

 stelidia triangula, acuminata, pes gynostemii valde curvatus, late linearis, antice exca- 

 vatus, purpureo-maculatus ; ovarium 6-sulcatum 2,5 mm, pedicellus 1,2 cm longus. — 



Papuanische Provinz: Niederl. Neu-Guinea. Am Noord-Fluss; auf Bäumen 

 in Metroxylon-Sümpfen (Djebdja n. 21). 



1 1 . D. dilatatocolle (J. J. Smith) Kränzl. — Dendrobium dilatatocolle J. J. Smith in 

 Icon. Bogor. II. (1903) 85 t. 116A. — Pseudobulbi congesti, caespitiflci, e basi crassiore 

 ovata sensim in caulem attenuati, ad 1 3 cm longi, pars incrassata 5 cm longa, 1,5 cm 

 crassa, transsectione elliptica, pars angusta apice subito dilatata. Folia singula, lanceo- 

 lata, basi late complicata, biapiculata, erecta, coriacea, leviter undulata, subtus pallidiora 

 quam supra, vagina in apice coriacea, brunnea, pedunculum 1,8 cm longum superans, 

 ipsa 2,1 cm longa. Sepala petalaque filiformia caudata, vix diversa, mentum sepalorum 

 lateralium breve obtusum. Labellum quam sepala quater v. quinquies brevius, lobi 

 laterales breves, erecti, semiobovato-oblongi, obtusi, lobus intermedius latissimus, antice 

 paulum dilatatus, deinde triangulus, brevi-acutatus, lamellae 2 in disco inter lobos laterales 

 valde approximatae, parallelae, discus labelli ceterum papillosus, margine verruculoso- 

 rugosus. Gynostemii brevis stelidia obtuse denticulata. — Flores semiephemeri, expansi 

 8 cm diam.; sepala circ. 6,5 cm longa, basi 5 mm lata; petala vix breviora 2 mm 

 lata omnia pallide fusca; labellum 1,2 cm longum 5,5 mm latum, labellum e basi 

 pallidiore luteum, obscure rubro-maculatum, ovarium 5 mm, pedunculus 4,5 cm longus. 



Heimat unbekannt; in Buitenzorg kultiviert. — Ex. sp. cult. ex horto Bogor. n. 51 ! 



1 2. D. phalangillum (J. J. Smith) Kränzl. — Dendrobium Phalangillum J. J. Smith 

 in Bull. Dep. agr. Ind. neerl. XIX. (1908) 19 et in Nova Guin. VIII. T. 1. 58 tab. XXI, 

 flg. 67. — Pusillum. Bhizoma breve, ramosum. Pseudobulbi aggregati, fusiformes, 

 obtusi, 1 — 1,3 cm longi, ad 4 mm crassi, monophylli. Folium sublineare, apice biden- 

 tatum, basi breviter angustatum, 3 — 3,5 cm longum, ad 4,5 mm latum. Spatha florum 

 conduplicata, ad 8 mm longa, flores succedanei, singuli, pro genere parvi. Sepalum 

 dorsale e basi latiore sensim angustatum, ovato-triangulum; sepala lateralia similia, obli- 

 qua, subfalcata, duplo latiora. Petala linearia, supra angustissima, omnia 1 cm longa, 



