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stems, less flowered racemes with the peduncle pressed against the stem, 
broader petals, the lip with different-shaped keels, shorter, blunter, not 
faleate lateral lobes, a shorter and much broader mid-lobe and a broader basal 
appendix, whereas the column-foot is much less excavated. Moreover, the 
plant was collected in a much higher altitude above the sea. . 
The species recalls D. prosteriglossum Schltr. var. obtusilobum Schltr. to 
mind ; it is possible that the two plants will prove to be identical, 
The flowers are described as yellow. 
Denprosrum (§ Oxyatossum) TriroLtum J. J. 8., sp. nov. 
Caules approximati, c. 4-5 em. longi, inferne vaginis mox fatiscentibus, apice 
c. 3-foliati. Folia erecto-patentia, lanceolata, oblique obtusa, breviter apiculata, 
omnino sed presertim ‘apice minutissime denticulata, costa media subtus prominente, 
sicco rigide coriacea, ¢. 26-4 cm. longa, 0°67-0-83 cm. lata; vaginw inferne tubu- 
lose, superne canaliculato-conduplicate. Inflorescentia pseudoterminalis, brevissima, 
c. 3-flora. Bractee rachidem amplectentes, late triangule, acute acuminate, ad 
c. O'7 cm. longer. Flores erecti, majusculi, c. 31 em. longi, sepalis sicco dorso parce 
nigro-punctatis. Sepalwm dorsale ellipticum, obtusum, apice minutissime denticu- 
latum, 5-nervium, ec. 1:25 em. longum, 0°65 em. latum. Sepala \ateralia lacinia 
elongata partim anguste lineari ad pedem gynostemii decurrentia, mentum rectum 
ovario adpressum ¢. 1°7 em. longum, superne marginibus anticis longitudine ec. 0°6 em. 
connatis anguste caleariforme apice retusum formantia, parte anteriore oblique 
triangulum, marginibus curvatis, subacuta, acute apiculata, apice minutissime 
denticulata, 7-nervia, costa media dorso prominente, c. 1:2 cm. longa, basi 2 em. 
margine antico 2‘9 cm. metientia. Petala spathulato-rhombea, vix acuminata, 
acuta, superne papilloso-ciliolata, 3-nervia, c. 1:23 em. longa, 0°57 em. lata. 
Labellum pedi gynostemii et gynostemio parallelum et adpressum, pedi gynostemii 
longitudine ¢. 0°95 cm. adnatum, gynostemium superans, anguste lineare, apicem 
versus dilatatum, apice 3-lobum, concavum, infra apicem subventricosum, ecallosum, 
inferne 3-, superne 7-nervium, explanatum c. 2°6 cm. longum, ad lobos laterales 
fere 0-4 cm., basi partis liber 0°175 cm. latum; lobi laterales breves, rotundati, 
papillosi ; lobus intermedius revolutus, triangulus, acutus, papilloso-ciliolatus, 
ce. 0-25 em. longus, basi 0°16 cm. latus. Gynostemium a dorso compressum, in 
utraque stigmatis parte obtusangulum, absque anthera ec. 0-2 em. longum, clinandrio 
in utraque filamenti parte lacinulato, filamento subulato, incurvo, Anthera cucullata, 
antice visa quinguangularis, apicem versus angustata, truncata et parte superiore 
adpresse puberula, basi 2-loba, ec. 0-2 em. lata. Pollinia 4, in corpuscula 2 oblique 
obovata supra convexa subtus concava unita, oblique oblonga, 2 interiora quam 
exteriora paulo angustiora. Stigma suborbiculare. Pes gynostemii linearis, canalicu- 
latus c. 1°7 cm. longus. Ovarium pedicellatum clavatum, superne 8-alatum et 
3-costatum, ala superiore quam cetere longiore et in dentem liberum triangulum 
producta, sparsa nigro-punctatum, c. 3 cm. longum. 
Hab. Arfak Mts., Angi lakes, on bank by ? lake, 7000’, terrestrial. 
Dec. 5907. ee : 
This species, the flowers of which agree in colour with D. pentapterum 
