192 
PTERIDOPHYTA. (A. Gerr.) 
FILICALES. 
The references to the descriptions of the following ferns are to be found 
in Christensen’s ‘ Index Filicum,’ 1905-13. 
TRICHOMANES HUMILE Forst. 
Humboldt Bay, over ridge behind “campong,” on rocks by stream, in 
high forest, 300’. Jan. 6251. 
Distrib. New Guinea (8.E.). Java. Formosa. 
TRICHOMANES 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. 
TRICHOMANES JAVANICUM Bl., var. RHOMBoIDEUM ©. Chr. 
Humboldt Bay, ridge behind “ campong,” 500’, common in high forest, 
terrestrial. Jan. 6263. 
Distrib. New Guinea (D.N.W., Andai, Ramoi, Beccari ; D.S.W., Noord 
River, Versteeg; Papuarand, von Roemer; N.E.). Trop. Asia. Trop. 
Australia, Polynesia. 
CYaTHEA RUNENSIS V. Ald. 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 STRAMINEA, Gepp, sp. nov. 
Stipes (?). Frons tripinnatifida ; rhachis straminea sparse muricata, supra fusco- 
pubescens ; pinnz basales circa 40 cm. longe 15 em. late, medie circa 55 cm. longe, 
brevi-stipitate lanceolate acuminate apice pinnatifide ; rhachis pinne sparse punctato- 
muricata, supra rufo-tomentosa infra sparse pallide et crispate pubescens; pinnule 
alterne 14-19-jugate lineari-lanceolate acuminate brevi-stipitate, 8 cm. longe 
+1°5 cm, late, fere ad costam (ad $) pinnatisecte ; costa pinnule 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; venule 8-10-jugate furcate. Sori mediani 
+ 8-jugati in venule furea siti. Zeaxtura herbacea; color lamine viridis. 
Hab. Humboldt Bay, ridge behind “campong,” 500’, undergrowth in 
high forest. Jan. 6256. “Tree-fern, 3 m. in height. Stem thin and 
thorny, paleze bark brown.” 
The pinnules are inserted on the costa (secondary rhachis) at intervals of 
about 2°25 cm., and their margins are +1 em. apart. The frond is not 
hairy enough to be referred to A. trichodesma. 
