192 



PTERIDOPHYTA. (A. GEPP.) 



FILICALES. 



The references to the descriptions of the following ferns are to be found 

 in Christensen's ' Index Filicum,' 1905-13. 



TUICHOMANES HUMILE Forst. 



Humboldt Bay, over ridge behind "campong,"on rocks by stream, in 

 high forest, 300'. Jan. 6251. 



Distrib. New Guinea (S.E.). Java. Formosa. 

 TBICHOMANES BIPUNCTATUM Poir. 



Island of Roon, ridge above " campong," epiphytic in high forest, 300'. 

 Jan. 6236. 



Distrib. New Guinea (D.N.W., Arfak Mts., Soron, Beccari ; Aru Islands ; 

 N.E.). Asia. Africa. Polynesia. 



TBICHOMANES JAVANICUM Bl., var. BHOMBOIDEUM C. Chr. 



Humboldt Bay, ridge behind " campong," 500', common in high forest, 

 terrestrial. Jan. 6263. 



Distrib. New Guinea (D.N.W., Andai, Kamoi, Beccari ; D.S.W., Noord 

 River, Versteeg ; Papuarand, von Roemer ; N.E.). Trop. Asia. Trop. 

 Australia. Polynesia. 



CYATHEA RUNENSIS V. Aid. v. Rosenb. 



Island of Roon, ridge rising from bay, 300', undergrowth in high forest. 

 Jan. 6237. " Small tree-fern, 3 m. in height, very thin stem, paleaceous. 

 Fronds 2 m. long, bases dry and thorny." 



Distrib. New Guinea (D.N.W., Roon Island). 



ALSOPHILA STBAMINEA, Gepp, sp. nov. 



Stipes (?). Frons tripinnatifida ; rhachis straminea sparse muricata, supra fusco- 

 pubescens ; pinnse basales circa 40 cm. longse 15 cm. latae, mediae circa 55 cm. longse, 

 brevi-stipitatae lanceolatae acuminatse apice pinnatifidae ; rhachis pinnae sparse punctato- 

 muricata, supra rufo-tomentosa infra sparse pallide et crispate pubescens ; pinnulae 

 alternae 14-19-jugatse lineari-lanceolatae acuminatae brevi-stipitatse, 8 cm. longse 

 1'5 cm. lataa, fere ad costam (ad -|) pinnatisectse ; costa pinnulae supra rufo- 

 tomentosa infra sparse et crispate pubescens ; segmenta 16-jugata, 4 mm. lata, 

 inter sese 1 mm. sejuncta, oblonga falcatula obtusa serrulata, infra minute pubes- 

 centia ; costula supra glabra ; venulae 8-10-jugatae furcatae. Sort media ni 

 8-jugati in venulae furca siti. Textura herbacea ; color laminae viridis. 



Hab. Humboldt Bay, ridge behind "campong/' 500', undergrowth in 

 high forest. Jan. 6256. "Tree-fern, 3 m. in height. Stem thin and 

 thorny, palese bark brown." 



The pinnules are inserted on the cogta (secondary rhachis) at intervals of 

 about 2'25 cm., and their margins are + 1 cm. apart. The frond is not 

 hairy enough to be referred to A. trichodesma. 



