Diplocaulobium. 337 



sepalum dorsale 2,5 mm, lateralia 5 mm, petala 1 mm lata; mentum sepalorum lateralium 

 obtusum, dimidium parlis anticae non omnino aequans. Labellum complicatum, lobi 

 laterales fere semicirculares v. suhscmiobovoidei, erecti, lobus intermedius antepositus, 

 oblongus acuminatus, lamellae 2 e basi fere apicem usque decurrentes, supra papilloso- 

 puberulae, discus lobi intermedii ubique pilosus; tohim labellum 8,5 mm longum, 4 mm 

 latum. Gynostemium 2 mm longum, filamentum subulatum, stelidia obtusa, denticulata, 

 ovarium cum pedicello 4,1 cm longum. — Flores albi, sepala roseo-, labellum luteo- 

 suffusum, lobi laterales brunneo-marginati. — Floret Julio. 



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

 Urwalde südlich des Geluk-Hügels (Versteeg n. 1536). 



13. D. nitidis3imum (Reichb. f.) Kränzl. — Dendrobium nitidissimum Reichb. f. 

 in Journ. Linn. Soc. XV. (1876) 112 et in Linnaea XLI. (1876) 41. — Dendrob. Mett- 

 kcaniun Kränzl. in Gard. Chron. (1894) II. 306. — Pseudobulbi dense aggregati, juniores 

 foliacei, sexcostati, saepius curvuli, monophylli, 4 — 5 cm longi, basi 6 — 8 mm crassi, 

 longissime lagenaeformes. Folia lineaiia, basi angustata, apice bilobula, utrinque obtusa, 

 ad 14 cm longa, 6 — 7 mm lata. Pseudobulbi floriferi tenues, basi cataphyllis quibus- 

 dam paleaceis vestiti, scapum subancipitem 1 5 — 18 cm altum efficientes; supra vagina 

 satis magna paleacea nitida oblonga obtusa instructi. Flores succedanei. Sepala la- 

 teralia basi late triangula, mentum antice apertum formantia. Sepalum dorsale anguste 

 lanceolatum. Petala lineaiia, omnia in caudas filiformes attenuata. Labelli lobi laterales 

 in terlia parte superiore semiobovata obtusa; lobus intermedius lanceolatus acuminatus; 

 calli minuti 2 in basi et pulvinar pilosuin in disco ante lobos laterales, non in apicem 

 lobi intermedii descendens. Gynostemium perbreve utrinque triangulo-alatum, filamen- 

 tum acutum. — Flores tenerrimi, pallide rosei, sepala pelalaque 2 cm longa. Martio- 

 Junio. — Fig. S3Ä—C. 



Papuanische Provinz: Admiralty Islands (Moseley!). — Neu-Irland. Port 

 Carteret u. Port Praslin (Micholitz!). 



Nota. Planta typica a Reichenbachio descripta labello latiore instructa esse dicitur. 

 Quamquam descriptio mea cum illa typica non plane convenit, tarnen non dubito, quin Den- 

 drobium Mettkeanum mihi in Nova Irlandia lectum eandam esse plantam quam D. nitidissi- 

 mum Reichb. f. in insulis finitimis Admiralty Islands dictis repertum. 



14. D. Ou-Hinnae (Schlechter) Kränzl. — Dendrobium Ou-Hinnae Schlechter in 

 Engl. Bot. Jahrb. XXXIX. (1906) 68. — Caules ad 20 cm alti, aggregati, e basi crassiore 

 sensim attenuati, monophylli. Pseudobulbi basi 4 mm, apice 2 — 3 mm crassi. Folium 

 angustum, lineare, obtusum, inaequali-bilobum, coriaceum, 5 — 7,5 cm longum, 5 — 8 mm 

 latum. Flores ex axilla folii Orientes, singuli, certe succedanei. Pedicelli tenuissimi. Sepala 

 lanceolata, caudata v. filiformia, 2,4 cm longa. Petala lineari-Ianceolata, ceterum aequalia, 

 2 cm longa, mentum subnullum. Labellum basi late unguiculatum antice trilobum, lobi 

 laterales oblique oblongi, obtusi, breves, intermedius lineari-unguiculatus, lamina late ovato- 

 subcordata, obtusa, margine undulata; lamellae 2 parallelae e basi usque ad basin lobi 

 intermedii, tertia interposita ad apicem fere decurrente, totum labellum 1 cm longum. 

 Gynostemium breve; ovarium cum pedicello 3 cm longum. — Januario. 



Araucarien-Provinz: Neu-Caledonien. Nord-Bezirk; auf Bäumen in den Wäldern 

 der Berge bei Ou-Hinna circ. 1000 m ü. d. M. (Schlechter n. 15626). 



15. D. utile (J. J. Smith) Kränzl. — Dendrobium utile J. J. Smith in Icon. Bogor. II. 

 (1903) 77 tab. 114 A et Orchid. Ambon (1905) 39. — Pseudobulbi dense aggregati, basi 

 incrassati, transsecti elliptici, nitidi, viridi-lutei, circ. 45 cm longi, basi 1 cm, apice 

 3,5 mm lati, monophylli. Folium erectum, coriaceum, lineare apice, bilobulum, obtusum, 

 dorso carinatum, ad 23 cm longum, 1,60 cm latum, vagina 3,7 cm longa, arcta, acuta, 

 lutea, nitida in basi pedunculi ; ovarium praelongum. Flores succedanei ephemeri, bracteae 

 parvae. Sepala petalaque angustiora, linearia, caudata, mentum brevi-bisaccatum. Labelli 

 lobi laterales breves, rotundati, erecti; isthmus lobi intermedii satis latus, lobus ipse ro- 

 tundatus, obtusus, subbilobus, undulatus; lamellae 2 breves in disco dense breviterque 



A. Eng ler, Das Pflanzenreich. IV. (Embryophyta siphonoguuiu) 50. 22 



