TAKEDA—ASIATIC POEYPODIUMS. 293 
characters are rather unstable in this species, and an examina- 
tion of the co-type specimens has convinced the writer that 
P. nigrocinctum, Chr. represents the typical P. superficiale, Bl. 
The synonymy and the Chinese specimens examined by the 
writer are given below :— 
P, superficiale, Bl. Fl. Jav. p. 136, tab. lvi, fig. 1 (1828). 
Syn. :—P. superficiale, Hook. Sp. Fil. v, p. 71, part.; Clarke, 
Ferns of N. Ind., p. 557, excl. var. 
P. brachylepis, Bak. in Gard. Chron. n. ser. xiv, p. 494 (1880). 
P. normale var. sumatranum, Bak. in Journ. Bot. 1880, p. 215. 
P. nigrocinctum, Christ in Bull. Herb. Boiss. vi, p. 874 (1898). 
Cuina. Szechwan: Mt. Omei (Faber, n. 1065); Yunnan: 
Mengtsz, rocks above the Red River, at 5000 ft. (Hancock, n. 166), 
limestone precipices at 8000 ft. (Henry, n. 106), S.W. mts. 7000 ft. 
(Henry, n. 9264), wooded cliff, 8000 ft. (Henry, n. 11,454), S.E 
mts., 6000 ft., on tree (Henry, n. 11,454A) ; Szemao, W. mts., 
5000 ft., on rock (Henry, n. 9264c 
With regard to the specimen recorded as P. normale var. 
sumatranum from Formosa, see under P. Buergerianum. 
23. P. Steerei, Harrington. 
So far as the writer is aware, this fern’ seems to be of 
comparatively rare occurrence. It was first described in 1877 
from Formosa as P. Steerei; subsequently, in 1891, from Tonkin 
as P. tonkinense; and finally, in the next year, again from 
Formosa under the name of P. Playfairit. 
The very thick, fleshy, broadly oblanceolate, sessile frond 
with numerous minute round sori, is very characteristic of 
this species, and immediately distinguishes it from its allied 
species. 
The full synonymy and the examined specimens are as 
under :— 
P. Steerei, Harr. in Journ. Linn. Soc. xvi, p. 32 (1877). 
_:— P. tonkinense, Bak. in Journ. Bot. 1890, p. 266. 
Fs Playfairii, Bak. in Ann. Bot. v, p. 474 (1891). 
Luzon. Castillo (Loher, n. 867). 
Formosa. Apes Hill, Takow (Henry, s.n., Steere, 1876, 
Playfair, n. 383). 
Tonkin. “‘ Tankenin, prés de 
calcaires ”’ (Balansa, n. 14 
Most of the specimens here cited are the types of each name 
Saat 
Guang-yen, sur les roches 
ven. 
[Notes, R.B.G., Edin., No. XL, March 19 915-1 A 
We. 13/608—450-—4/15—N. & Co., Ltd. Gp. 10, 
ee 
