J. J. SMITH. ORCHIDACEAE. 3I5 



Dendrobium acanthophippiiflorum 1. j. S. in Mededeel. Herb. Leid. n. 23 (1915), lo- 



Tab. CXIV, 208. 



Cailles approxiniati, clongati, simplices, flexuosi, basi tenues, superne dilatati et compressi, 

 c. 40 cm. longi, ad 0.5 cm. lati, foliati. Folia erecto-patentia, lanceolata, apice angustata, 

 auguste inaequaliter 2-dentata, dentibus iriegulariter marginatis, basi abrupte breviter contracta 

 et conduplicata, margine recurva, costa média supra sulcata subtus carinata, coriacea, c. 

 8.5 — 12 cm. longa, 1.4 — 2.8 cm. lata ; vaginae internodiis multo longiores, tubulosae, valde 

 latcraliter compressae, apice antice excisae, ad c. 1.3 cm. latac. Inflorescentiae 2 vaginas 

 perforantes, abbreviatae, 2-florae, vaginulis brevissimis, truncatis, c. 0.2 cm. longis, 0.77 cm. 

 latis. Flores majusculi, eos Acanthophippii simulantes, c. 3 cm. longi, 2.4 cm. lati. Sepalum 

 dorsale in - - supra basin obtusangule recurvum, apice incurvulum, oblongo-triangulum, ob- 

 tusum, glabrum, nervis majoribus c. g, carnosum, c. 2.3 cm. longum, 1.3 cm. latum. Sepala 

 lateralia cum pede gynostemii mentum latum rotundato-saccatum antice 2-lobum ab apice 

 ovarii ad apicem pedis gynostemii c. 1.6 cm. metiens 1.7 cm. latum formantia, erecta, apice 

 falcato-recurva, sigmoidea, late oblique triangula, obtusa, concava, latere proximo intus ad 

 basin verruculosa, carnosa, explanata c. 2.1 cm. longa, 1.7 cm. lata. Petala erecta, apice 

 recurvula, oblique subspathulato-elliptica, subsigmoidea, auguste obtusa, concava, margine 

 recurva, dorso sulco longitudinal! superne evanescente inferne costis limitato, 3-nervia, c. 2.1 

 cm. longa, 0.9 cm. lata. Labellum mobile, erectum, supra basin et apice recurvum, latum, 

 apice 3-lobum, marginibus lateralibus erectis concavum, intus in utraque parte costae incon- 

 spicuae longitudinalis incrassationibus irregularibus transversis reversis bene '/a partem latitu- 

 dinis labelli occupantibus ornatum, incrassatione transversa flexuosa antice medio 3-dentata 

 infra basin lobi intermedii, omnino dense papillosuni, subtus sulco longitudinali instructum, 

 7-nervium, brevissime unguiculatum, explanatum ambitu quadrangulum, c. 1.35 cm. longum, 

 et fere aequilatum ; lobi latérales antice breviter liberi, erecti, obtusissimi, minute crenulato- 

 erosuli ; lobus intermedius latérales paulum superans, 3-partitus, lacinia intermedia recurva, 

 oblongo-triangula, acuta, c. 0.3 cm. longa, lateralibus porrectis, triangulis, acutis, convexis, 

 c. 0.16 cm. longis. Gynostemium rectum, a dorso paulo compressum, latum, subtus visum 

 quinquangulare, obtusum, dorso conve.xum, subtus planum et leviter 3-costulatum, c. 0.65 cm. 

 longum, clinandrio concavo, semiorbiculari, filamento abbreviato, auriculis brevibus, triangulis. 

 Anthera cucullata, transverse ovali-quadrangula, truncata, apice papillosa, basi retusa, c. 0.26 

 cm. lata. Stigma transverse ovale, alte excavatum, margine superiore utrinque lobule parvo 

 obtuso instructum. Pes gynostemii elongatus, cum ovario angulum obtusum faciens, valde 

 incurvus, apice liber et obtusangule recurvus, e basi late triangula valde angustata, intus 

 magnam partem dense transverse verruculoso-papillosus, inexpansus c. 1.65 cm. longus, basi 

 0.7 cm. latus, parte apicali libéra c. 0.475 cm. longa, basi contracta, apicem versus dilatata, 

 obverse triangula, truncata, convexa, verruculoso-papillosa, basi 0.15 cm., apice 0.34 cm. lata. 

 Ovarium curvatum, crasse obconicum, 6-sulcatum, cum pedicello c. 1.2 cm. longum. 



Niederl.-Neu-Guinea: Geelvink-Bai, Jabi-Gebirge bei Wape, epiphytisch im Walde. (R. F. Janowsky 

 n. 401, bi. im Juni 1913). 



Die Art scheint wohl D. quinquclobatum Schltr. am nachsten zu stehen, ist aber u. a. 

 durch die Lippe sehr verschieden. 



