478 Baker . — A Summary of the new Ferns 
340 *. P. xiphias, Baker ; Pleopellis xiphias, Moore, in Gard. Chron. 
1 888, I, 331. Southern Polynesia, introduced into cultivation 
by Bull. Near P. membranaceum and heterocarpum. 
341 *. P. millisorum, Baker, in Journ. Linn. Soc. XV, 109. Little 
Kei Island, Moseley (Challenger expedition). Near P. irioides , 
Lam. 
342 . P. musaefolium, Blume. Has now been found in Perak by 
Scortechini and in New Guinea by Beccari. 
348 *. P. snbhastatum, Baker, in Journ. Bob 1889, 177. West 
China : province of Hupeh, Henry , 5450. 
349 *. P. deltoideum, Baker, in Journ. Bot. 1888, 230. West China : 
Ichang, Henry , 3279. 
349 *. P. Engleri, Luerss. in Engler Jahrb. 1883, 361. Japan, 
Doderlein . Not seen. 
352 *. P. (Dipteris) quinquefurcatum, Baker, in Journ. Linn. Soc. 
XXIV, 269. West Borneo, Bishop Hose. Near P. bifurcation , 
Baker. 
354 *. P. hemitomum, Hance, in Journ. Bot. 1883, 369. Canton, 
Rev. B. Henry (Hance herb. 22,404). A doubtful species. 
The cutting looks abnormal, and there are no sori in Dr. 
Hance’s type specimen now at the British Museum. 
354 . P. leucosporum, Klotsch. I now regard this an abnormal 
more or less deeply pinnatifid form of P. lanceolatum , our 
No. 314 . 
355 *. P. pentaphyllum, Baker, sp. n. Rhizome wide-creeping, 
woody, in. diam. ; paleae small, sparse, lanceolate-acuminate. 
Stipe naked, an inch long. Frond above a foot long, mem- 
branous, green, glabrous, simple in the lower half, forming 
a mere wing to the rachis, deeply pinnatifid in the middle ; 
lobes distant, linear-lanceolate, in. broad; veins fine, 
anastomosing, copious. Sori minute, scattered. Philippines, 
Wallis. Texture and sori of P. tenuilore. 
355*. P. glaucopsis, Franchet, in Bull. Soc. Bot. France, 1885, 29. 
Yunnan, Delavay. Near P. trifidum , Don. 
355 *. P. quinquefidum, Baker, in Journ. Bot. 1880, 216. Mount 
Singalan, Sumatra, alt. 5000-6000 ft., Beccari. Very near 
P. trifidum. 
355 *. P. senanense, Maxim, in Bull. Imp. Acad. Petersb. XII, 571. 
Japan, Tschonoski, Hancock. Very near P. trifidum. It 
