120 



Svhltr., 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. 



DENDROBIUM AGATHOD^MONIS J. J. S. in Bull. Dep. Agr. Ind. Neerl. n. xxxix. 

 (1910) 7 ; etc. 



Arfak Mts., ridge running up to Angi lakes, terrestrial in open gravel 

 spaces, 8000'. Dec. 5530 and 5596. 



Disifib. New Guinea (D.N.W., Cyclops Mts., Gjdlerup ; D.S.W., Aga- 

 thodiimonsberg, von Roemer, Hell wig Mts., van Noukuys). 



Perhaps it would be better to keep the typical I), agatliodcemonis 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. S., sp. nov. 



Caules approximati, elongati, superne flexuosi, sicco inferne teretes superne alto 

 sulcati, c. 46 cm. longi, internodiis ad c. 2'6 cm. longis. Folia basi semitbrta, ovato- 

 lanceolata, longe acuminata, acutissima, longe mucronata, acumine denticulata, costa 

 media subtus prominente, sicco rigidiuscula, c. 6-7'5 cm. longa, 1-2-1-9 cm. lata ; 

 vaginae tubulosse, internodia paulum superantes, minute verrucosse, novelise sicco 

 fusee punctatse. Inflorescentiae ad nodos caulium defoliatorum, abbreviate, 

 c. 4-flora3, pedunculo nonnullis vaginulis brevibus tubulosis tecto. Bractece valde 

 approximatse, patentes, ovato-trian guise, acute acuminataa, concava^, sicco c. 0'85 cm. 

 longae. Flores parvi, macerati c. 1*4 cm. longi. Sepalum dorsale subovale, apice 

 brevissime productum, obtusum, valde concavum, 3-nervium, c. 0'65 cm. longum, 

 0'4 cm. latum. Sepala lateralia lacinia oblique triangula ad pedem gynostemii 

 decurrentia, marginibus anticis longitudine c. O65 cm. connata, men turn magnum 

 conicum ovario parallelum suberectum anguste obtusum c. 0'9 cm. longum formantia, 

 parte libera oblique ovato-triangula, pra^sertim margine postico valde curvata, obtusa, 

 apiculata, concava, c. 4-nervia, c. 0'625 cm. longa, margine antico c. 1'35 cm., basi 

 1 cm. metientia. Petala oblique subelliptico-oblonga, subulato-apiculata, concava, 

 superne erosula, 3-nervia, c. 0'65 cm. longa, 0'27 cm. lata. Labellum gynostemium 

 sequans, basi gynostemii longitudine c. 0'4 cm. adnatum, concavum, apice cucullatum, 

 ecallosum, c. 5-nervium, nervis exterioribus ramosis, cucullo plicato margine apicali 

 truncate dense et breviter subulato-lacinulato, explanatum cuneatum, late obverse 

 rhombeum, fere I'l cm. longum, 0'84 cm. latum, ab apice cuculli usque ad marginem 

 apicalem c. 0'37 cm. metiens. Gynostemium recurvuluin, a dorso compressum, 

 apicem versvis dilatatura, in utraque stigmatis parte obtusangule dilatatum, 

 c. 0'2G cm. longum, filarnento curvulo, lineari, obtuso, dorso convexo, auriculis 

 magnis, quadrangulis, obtusissimis, dimidio superiore apice leviter productis et 

 denticulatis, dimidio inferiore rotundatis. Antliera cucullata, arnbitu transverse 

 subquadi-angula, leviter 6-angulata, basi biloba, apice producta, truncata et papillosa, 

 c. 0'22-j cm. lata. Pollinia 4, oblonga, in corpuscula 2 oblique subovalia supra 

 convexa subtus concava conglutinata. PCS gynostemii linearis, canaliculatus, 



