paucidentatis, 2-3 mm. longis, 0'5 cm. latis. Sori solitarii in lobis brevibus pin- 

 narum terminates. JiH/itsimn ad medium divisum, valvis obtusis truncatisve integris, 

 basi obovatum, parce longitudinaliter cristatum. JReceptaculum exsertum. 



Hab. Arfak Mts., S.W. ridge, Angi lakes, 8500', epiphytic in moss-grown 

 forest. Dec. 5989. 



This species has sori much as in H. cernuum (No. 5964), but is not one- 

 quarter the size, and is not cristate on the costules of the segments. It 

 approaches //. holochilum Van den Bosch (Hymen. Javan. t. 34), hut has a 

 stouter, more hairy rhizome and stipes (the latter winged throughout its 

 length), and much narrower ultimate segments. The dried plants are very 

 convolute. 



OYATHEA ARFAKENSIS Gepp, sp. nov. 



Stipes circ. 18 cm. longus muricatus inferne fuscus supeme griseo-purpurascens ; 

 rhachis purpurea baud nitens supra ferrugineo-pubescens glande juxta cujusque pinnae 

 basin instructa. Frons lineari-lanceolata, circa 80 cm. longa, 13 cm. lata, bipinnata ; 

 pinnae alternae 35-jugatae stipitatae lanceolatae, 8 cm. long*, 2 cm. lata?. obtusae, 

 pinnnlis 15-20-jugatis, stipitatis 1 cm. longis, 0'4 cm. latis, imbricatis oblongis 

 obtusis, inferioribus paucipinnatis (segmentis rotundatis), superioribus lobatis vel 

 crenatis vel integris (versus apicem) ; rhachibus pinnarum supra pubescentibus, infra 

 squamulis albidis sparse instructis. Sori costales 4-5-jugati ; venuke pinnularum 

 5-6 parum conspicuae simplices f urcatuave. Textura coriacea ; frons supra griseo- 

 purpurea, infra pallide brunnea. Indusium persistens hemisphericum. 



Hab. Arl'ak Mts., S.W. ridge, Angi lakes, 8000', undergrowth in moss- 

 grown forest. Dec. 6008. " Tree-fern." 



. Tlie pinnae are not contiguous, but are attached to the rhachis at intervals 

 of about 3 cm. In the dried specimen the shortly-stalked opposite rows of 

 pinnulse are appressed to one another and directed upwards (apically), 

 displaying the sori and concealing the upper surface. 



CYATHEA FUSCA Baker. 



Arfak Mts., Angi lakes, 7000', undergrowth in forest by ? lake. Dec. 

 5932. "Tree-fern, 3 in. in height (pinnae)." 



Distrlb. New Guinea (S.E.). 



ALSOPHILA ANGIENSIS Gepp, sp. nov. 



Stipes (?). Frons tripinnatifida ; rhachis purpureo-fusca sparse aculeata impolita 

 sparse et breviter atro-hispida ; pinna brevi-stipitata, 37 cm. longa, 19 cm. lata, 

 oblongo-lanceolata ; rhachis pinnse supra atro-tomentosa purpureo-fusca, infra sulcata 

 furfuraceo-squamulata ; pinnula? suboppositse 30-jugatai contiguae imbricataeve 

 sessiles horizontales lineari-lanceolata} acuminatse 1'5 cm. lataa, fere ad costam 

 pinnatisecta? ; costa pinnulae supra fulvo-tomentosa, infra sulcata furfuraceo-squamu- 

 lata ; segmenta 2G-jugata lineari-oblonga falcatula integra 3 mm. lata, supra 

 f usco-purpurea glabra, infra glauca ; costula segmenti supra glabrum, infra pauci- 

 pilosa et squamulis flavidis timbriatis versus basin vestita ; venulae inconspicuae 

 tenues 14-jugat, 1-2-furcata?, pauci-pilosa?. Sori (?). Textura coriacea. 



