120 
Schltr., differs from the latter in the larger flowers, a blunt dorsal sepal, 
differently shaped petals and lip, lacinulate clinandrium, not 5-winged ovary. 
The flowers are described as dull yellow, with a red tip to the labellum. 
DeEnpRoBIUM AGATHODAMONIS J. J. 8. in Bull. Dép. Agr. Ind. Néerl. n. xxxix. 
(1910) 7; ete. 
Arfak Mts., ridge running up to Angi lakes, terrestrial in open areye) 
spaces, 8000’. Dec. 5530 and 5596. 
Distrib. New Guinea (D.N.W., Cyclops Mts., Gjellerup ; D.S.W., Aga- 
thodiimonsberg, von Roemer, Hellwig Mts., ran Nouhuys). 
Perhaps it would be better to keep the typical D. agathodemonis apart 
as a species and not to unite with it the different forms I successively added. 
However, these forms are, in the material at hand, almost all represented by 
single specimens, and therefore it is very difficult to make a decision. 
The flowers of the Arfak specimens are described as magenta. 
DENDROBIUM (§ CALYPTROCHILUS) PAPUANUM J.J. 8., sp. nov. 
Caules approximati, elongati, superne flexuosi, sicco inferne teretes superne alte 
sulcati, c. 46 em. longi, internodiis ad c. 2°6 cm. Jongis. Folia basi semitorta, ovato- 
lanceolata, longe acuminata, acutissima, longe mucronata, acumine denticulata, costa 
media subtus prominente, sicco rigidiuscula, ce. 6-7°5 em. longa, 1:2-1:9 em. lata; 
vagine tubulosi, internodia paulum superantes, minute verrucose, novell sicco | 
fusce punctate. Inflorescentie ad nodos caulium defoliatorum, abbreviate, 
c. 4-flore, pedunculo nonnullis vaginulis brevibus tubulosis tecto. Bractee valde 
approximate, patentes, ovato-triangule, acute acuminate, concave, sicco ¢. 0°85 cm. 
longe. lores parvi, macerati c. 1-4.em. longi. Sepalum dorsale subovale, apice 
brevissime productum, obtusum, valde concavum, 3-nervium, c. 0°65 em. longum, 
O-4 cm. latum. Sepala lateralia lacinia oblique triangula ad pedem gynostemii 
decurrentia, marginibus anticis longitudine c. 0°65 cm. connata, mentum magnum 
conicum ovario parallelum suberectum anguste obtusum ce. 0-9 em. longum formantia, 
parte libera oblique ovato-triangula, presertim margine postico valde curvata, obtusa, 
apiculata, concava, c. 4-nervia, c. 0°625 em. longa, margine antico e. 1°35 em., basi 
1 em. metientia. Petala oblique subelliptico-oblonga, subulato-apiculata, concava, 
superne erosula, 3-nervia, c. 0°65 cm. longa, 0°27 cm. lata. Labellum gynostemium 
zquans, basi gynostemii longitudine c. 0-4 em. adnatum, concavum, apice cucullatum, 
ecallosum, ¢. 5-nervium, nervis exterioribus ramosis, cucullo plicato margine apicali 
truncato dense et breviter subulato-lacinulato, explanatum cuneatum, late obverse 
rhombeum, fere 1-1 em. longum, 0°84 em. latum, ab apice cuculli usque ad marginem 
apicalem ce. 0°37 em. metiens. Gynostemium recurvulum, a dorso compressum, 
apicem versus dilatatum, in utraque stigmatis parte  obtusangule dilatatum, 
c. 0-26 cm. longum, filamento curvulo, lineari, obtuso, dorso convexo, auriculis 
magnis, quadrangulis, obtusissimis, dimidio superiore apice leviter productis et 
denticulatis, dimidio inferiore rotundatis. Anthera cucullata, ambitu transverse 
subquadrangula, leviter 6-angulata, basi biloba, apice producta, truncata et papillosa, 
ce. 0°225 cm. lata. Pollinia 4, oblonga, in corpuscula 2 oblique subovalia supra 
eonvexa subtus concava conglutinata. Pes gynostemii linearis, canaliculatus, 
