THE FERNS OF NORTH-WESTERN INDIA, 33 
rhizome appears to be covered with a detachable skin or bark, somewhat wrin- 
kled or striated. It is desirabie that specimens of this plant should be collected at 
various stages of growth, to show the rhizome scales and the indusium distinctly. 
It will be observed that Kunze at first called this plant Cystopderis daval- 
liodes, but finding it was a Lewcostegia in everything but the shape of indusium, 
finally named it D. (Leuc.) pseudocystopteris, the name being evidently sug- 
gested by the shape of the indusium, which, however, does not seem to have 
its base inserted under the sorus as in Cystopteris. Further examination may 
show that this plant, from the shape of the indusium, deserves to be put ina 
separate genus, or sub-genus, as much as other Davallias do. 
5. D. Beddomei, n. sp. Plate I. (see Part IL., p. 527). 
PongaB : Chamba—J. Marten, 1898. 
Sub-genus Mrcrouepia, Presi. 
{Kumaun is given by Clarke, in his ‘Review,’ as a habitat for D. (Micro. ) 
marginals, Wall., and also for Z). calvescens, Wall., which he places 
as a variety of that species ; but as there is a mistake in the citation of 
Wallich’s catalogue number by Hooker in the Species Filzcam which he 
follows, he thinks the locality ‘‘ Kumaun ” may be a mistake. Beddome 
has copied Clarke without any such reservation. Hooker did not give 
Kumaun as a habitat for D. villosa, Wall., which is placed as a 
synonym of D. marginalis in the Synopsis, but only Nepal : he gave 
Kumaun as a habitat for D. calvescens, Wall., which he considered a 
dissinet species. On his type sheet of D. villosa, Wall., Cat. 244, in the 
Calcutta Herbarium, Wallich wrote—“ Legi in Napalia, 1821.” The 
entry in the original catalogue in Calcutta is of thisspecimen only ; 
and Dr. Prain has shown me that there was no subsequent entry. I 
have seen no specimen of either of these ferns, collected in modern 
times in Kumaun, or the westward of it. Mr. Clarke seems to 
have been misled by two sheets in the Kew Herbarium without tickets, 
but marked on the sheets by Sir W. J. Hooker—“ Davallia calvescens, 
Wall., Cat. 2683, Kumaun, Wall.” This is not warranted by the entry 
in the catalogue. The distribution of the species, or of both species, is 
Asia, Nepal, Waillich ; Assam—Khasi Hills, Griffith, Mann ; Mikir 
Hills, Simons, N. Manipur, Clarke. Tonkin, Balansa. Formosa, Wilford. ] 
Sub-genus Mrorouepra, Pres. 
6. D. Wilfordii, Baker; Syn. Fil. 98. D. rhomboidea, Hook. 2nd 
Cent., t. 48, not Wall, 
“Caudice gracili elongato repente atro nitidissimo fragili, stipitibus gparsis 
3-4 uncias longis stramineis nitidis basi ebeneis, frondibus 6-8 uncias longis 
5 
