112 PROF. REICHENBACH OK THE ' CHALLENGER ORCHIDACEJS. 



Selaginella Wallichii, Spreng. 



Humboldt Bay, New Guinea {Prof. Wyville Thomson). 



S. iNiKQUALiFOLJA, Spreng. 



Aru Islands, Admiralty Islands, Little Kei Island, Camiguen, and Zam- 

 boangan (Philippines). 



PSILOTUM TRIQUKTRUM, Sw. 



Admiralty Islands. 



P. COMPLANATUM, Sw. 



Admiralty Islands. 



XXXII. On some Orchidaceae collected by Mr. Moseley, of the 

 1 Challenger ' Expedition, in the Admiralty Islands, Ternate, and 

 Cape York, one of which forms the Type of anew Section of 

 the Genus Dendrobium. By Prof. H. Gr. Eeichenbach. (Com- 

 municated by Prof. Oliver, P.E.S. &L.S.) 



[Head January 20, 1876.] 



Habenakia ternatea. Raeemo plurifloro, braeteis lanceolatis acumi- 

 natis ovaria attenuata plus dimidio aequantibus, sepalis triangulis tri- 

 nerviis, tepalis multo longioribus, bipartitis, partitione superiore lineari 

 setacea breviore, partitione anteriore rachi lineari utrinque pectinata 

 multipartite ambitu late ligulata, labello ad basin tripartito, partitiom- 

 bus lateralibus elongatis sequaliter capillaceo-decomposito-multipar- 



titis, partitione media breviore lineari setacea, calcari cylindraceo apice 

 clavato ovario breviore, cruribus loculorum antherae porrectis, crun- 

 bus stigmaticis semifalcatis. Caulis validus. Folia lanceolata acu- 

 minata, pendentia, in bracteas decrescentia, 3^-6 uncias longa, ftre 

 \\ supra basin mferiorem lata. Flores illis Habenarice trichopartita, 

 Lindl., paulo minores, folia multo angustiora. Ab hac specie labello 

 ad basin usque partito ac tepalis longe recedit. 

 Ternate, 2000-4000', October 1874. 



■ 



Dendrobium. 



Nova sectio Diplocaulobium. Rhizomatis repentis gemmae aliae pseudo- 

 bulbos monyphyllos sistentes, aliae pedunculos basi vaginatos, apice 



florido 



s. 







D. nitidissimum. Pseudobulbis fusiformi-teretiusculis, siccis multian- 

 gulatis sulcatisque monophyllis, folio lineari-ligulato attenuato bilo- 

 bulo ; pedunculo a pseudobulbo foliato liberrimo ex alia gemma, 

 nitido basi vagin^to ancipiti, apice bractea magna chartacea nitida, 

 superaddita bractea minore, fatua visa ; flore solitario (semper ?) value 

 membranaceo, mento bene evoluto, lobulato, sepalis a basali et acu- 



