118 
This Dendrobium belongs to the small-flowered species of the section 
Latouria. The shape of the labellum calls to mind that of D. dendrocolloides 
J.J. S. and D. latifrons J. J. S., but the habit is very different. 
Denprosium (§ TRacHyRHIzUM) LATIFRONS J. J. S., sp. nov. 
Rhizoma breve, vaginis brevibus tubulosis sese amplectentibus omnino obtectum, 
radicibus dense verrucosis. Caules simplices, elongati, superne flexuosi, c. 47 cm. 
longi, internodiis ¢. 8°7-1'3 em. longis. Folia patentia, oblonga, oblique bidentata, 
dentibus acutiusculis, costa media supra sulcata subtus prominente, marginibus in 
sicco recurvis, sicco tenuiter coriacea, ad c. 5-5 cm. longa, 1°8 cm. lata, superiora 
et inferiora decrescentia; vaginz tubulose, apice truncate, internodiis breviores. 
Inflorescenti@ in caulibus foliatis axillares, vaginam dorso ad basin perforantes, 
arcuate, laxe 3-5-flore, pedunculo cauli adpresso, c. 3-4 cm. longo, nonnullis 
vaginulis tubulosis ad basin, rhachide c. 1°5-2 cm. longa. -Bractee adpresse, 
triangule, concave, c. 0°3 em. longer. Flores quaquaversi. Sepalum dorsale late 
triangulum, marginibus curvatum et base utrinque angulatum, obtusum, concavum, 
7-nervium, c. 0°8 em. longum et latum. Sepala lateralia cum pede gynostemii 
mentum obtusum formantia, antice omnino libera, late oblique triangula, obtusa, 
breviter crasse obtusa apiculata, margine postico basi angulata, 7-nervia, costa 
media dorso obtuse prominente, ce. 0°95 cm. longa, basi 1:15 cm. lata. Petala 
oblique subovalia, basi lata, breviter obtusiuscule triangulo-acuminata, concava, 
minutissime erosulo-ciliolata, basi 3-nervia, c. 0°77 cm. longa, 0°53 cm. lata. 
Labellum ungue brevi lato 5-nervio pedi gynostemii insertum, 3-lobum, curvatum, 
subtus supra basin concavum cum nervis 5 obtuse prominentibus, intus fascia 
Jatissima longitudinali carnoso-incrassata subquinquecostata cum costis 3 medianis 
alte elevatis basi in appendicem reversam rotundato-trapeziformem obsolete retusam 
concavam carnosam unguem xquantem, c. 0-2 cm. longam, 0°35 em. latam, producta 
in basi lobi intermedii in lamellam transversam porrectam excavationem anticam 
obtegentem verrucosam antice dentes c. 5 porrectis irregulariter conicis gerentem 
utrinque nonnullas costulas transversas emittentem terminante, intus papillosum, 
explanatum ¢, 1:13 em., usque ad apicem loborum lateralium 0°93 cm. longum, ad 
lobos laterales c. 1:43 cm. latum, ungue ce. 0°2 em. longo; lobi laterales erecti, 
patentes, oblique ovati, rotundati, basi lati, concavi, margine postico manifeste 
incurvi; lobus intermedius Jatissimus, concavus, 2-lobus, medio plica supra concava 
subtus convexa et in sinu dente brevi triangulo donatus, lobis transverse oblique 
rotundato-quadrangulis, apice truncatis, irregulariter crenatis, angulum exteriorem 
versus repandulis, explanatus c. 0°43 em. longus, 1°3 cm. latus. Gynostemium 
(fcecundatum) bene 0°3 em. longum, apice porrecto utrinque dente donato, auriculis 
triangulis. Pes gynostemii cum ovario angulum obtusum fere rectum formans, 
late oblongus, intus pubescens, basi dorso convexus, apice altius excavatus et dorso 
rotundato-gibbosus, ¢. 0°7 cm. longus. Ovarium (foecundatum) obconicum, 6- 
sulcatum, c. 0-4 em. longum ; pedicellus c. 1°3 cm. longus. 
Hab. Arfak Mts., Angi lakes, terrestrial in marsh by ? lake, 7000’. 
Dee. 5558. 
This species is nearly allied to D. appendiculoides J. J. 8., from which it 
differs, so far as the single specimens allow comparison, by its more robust 
(ea persia etm tar 
