TAKEDA—ASIATIC POLYPODIUMS. 297 
2.4 28. P. crenato-pinnatum, Clarke. 
This species is closely allied to the foregoing, and to 
the first glance they appear almost identical. However, 
the distinction between P. crenato-pinnatum and P. Veitchit 
is very definite. The species under consideration is often much 
larger than the other, having usually acuminate pinnae which 
irequently show a tendency to become bipinnatifid, and are 
hardly deflexed, as has been correctly delineated by the author.* 
In P. Veitchit the frond is, however, much smaller, with fewer 
pinnae which are, except one or two near the apex, always very 
obtuse, and those of the basal pair are often deflexed. The 
ramenta on the rhizome in these two species are also different. 
Excellent figures of P. Veitchii have been published by Makino 
under the name of P. senanense. 
Christensen hesitatingly expresses his view of the identity of 
By pseudoserratum, Chr. with P. crenato-pinnatum, Clarke. 
There is, however, no room for doubt that these two are abso- 
lutely identical. Besides these just mentioned, our plant has © 
received another name—P. gviseo-nigrum.§ An examination 
of the type specimens has convinced the writer that it is 
conspecific. 
The occurrence of P. crenato-pinnatum in China was first 
recorded by Clarke when he described his fern from India. 
Up to the present this species has been found only in Manipur, 
India, and Yunnan, China. The following specimens from 
China have been examined :— — : 
Yunnan: Mengtsz, woods, 5000 ft. (Henry, n. 98954), grassy 
mountain-slopes, 6300 ft. (Hancock, n. 67) ; Szemao Hills, 4500 
ft.6000 it. (Henry, n. 10,282) ; ‘‘ Montagne de Yangiuchan, au 
dessus de Lankong ”’ (Delavay, Aug. 1883). 
29. P. malacodon, Hooker. 
Now we have come to another group in which there has 
been much confusion. True P. malacodon is a very well-marked 
species, so that it does not require much comment. The frond 
is of a small to medium size, and has one to four falcate pinnae 
on. each side, the margin of which is densely serrate with pro- 
minent cuspidate teeth. 
This fern is not at all uncommon in the Himalayas. Its 
occurrence in China was first recorded by Baker,]| and his 
information was based on a specimen collected by Henry in the 
* Journ. Linn. Soc. xxv, p. 99, tab. xlii (1 1888). 
Phan. et ne Hg Ic. Ill. tab. lxix, Ixx (1901). 
hes Fil. § Kew Bull. 1895, Pp. 55- 
P- 5 
|| Journ. Bot. oe p- 177 (1889). 
