296 TAKEDA—ASIATIC POLYPODIUMS. 
the real P. podobasis, Christ, but represents a small form of 
P. oxylobum, Wall.* 
27. P. Veitchii, Baker. 
This fern was first described in 1880 from Japan as P. 
Veitchii; then in 1885 from Yunnan, China, as P. glaucopsis ; and 
again next year from Japan by Maximowicz under the name of 
P. senanense. Some ten years afterwards M. ]’Abbé G. Giraldi 
found the same species in the northern part of Shensi, China, and 
the plant was accordingly named by Christ P. shenstense. 
Later, when describing a variety of P. shensiense, Christ records 
its occurrence in Japan also. 
This species generally grows among mosses on moist rocks 
in a comparatively high altitude. A frond of young age, or 
from a very much shaded locality, may be very thin and almost 
membranaceous, whilst one from an exposed habitat, which is 
not usual, may be chartaceo-subcoriaceous and very firm. 
P. glaucopsis is the name given to a specimen from a drier 
situation, having a rather rigid frond with very pronounced 
teeth on the margin, so that the type specimen appears at a 
casual glance to differ from P. senanense. However, several 
intermediate forms connect these two types. The names P. 
Veitchi, P. senanense, and P. shensiense have been given to a 
more typical form of this species, and a comparison of the type 
specimens has shown their perfect identity. 
Our plant is not uncommon in Central Japan, and also 
occurs in Central and Southern China, as well as in Quelpaert. 
The synonymy and the specimens examined from China are 
as follows :— 
20% p. Veitchii, Bak. in Gard. Chron. n. ser. xiv, p. 494 (1880). 
Syn :—P. glaucopsis, Franch. in Bull. Soc. France, xxxii, p. 29 
(1885). 
P. senanense, Maxim. in Mél. Biol. xii, p. 571 (1886). 
P. shensiense, Chr. in Nuov. Giorn. Bot. Ital. n. ser. iv, p. 99, 
tab. 3, fig. 2 (1898). 
CuinA. Hupeh: (Henry, n. 6170, 6170A, 61708) ; Shensi : 
“Montagne del Chae-pei-san ’’ (Giraldi, Aug. 1895); Yunnan: 
“Montagne de Ché tchd tzé au dessus de Tapintze prés de 
Tali’ (Delavay, Aug. 1883). Western China: without locality 
(Wilson, n. 5341). 
cue 8. nigrovenium, (Chr.) mihi. alu 
Syn. :—P. shensiense var. nigrovenium, Christ j in Bull. Acad. 
Intern. Geogr. Bot. xvi, p. 106 (1906). 
West CuInA. Without locality (Wilson, n. 53414). 
* See also under P. oxylobum. 
ae 
