C 33 ) 
101. Asplenium (Diplazium) polyrhizon, Baker. 
Bed. 11. t. 292. For A. (D.) decussatum, Wall., and C. P. 3951. Th. 
Peradeniya Herbarium has, through the exertions of its Director, and the feeline 
of reciprocity of those of the Calcutta one, received a considerable number oS 
the duplicates of the Wallichian Herbarium and when Thwaites adds to the C. Pf 
label, the words ''■Wall. Cat t 2208,” we may take it for granted that a com- 
parison was made, and that the note is correct. We, therefore, know 
that this fern is the A. (D.) decussatum of Wallich’s list of Indian plants, and 
in the note after the habitat of A. (Dipl,) lasiopteris, Mett. Syn. Fil. page 
235, No. 228, Baker states that Wallich’s fern is identical with A. (Dipl.) 
Japonicum, a good deal of trouble is thus saved in trying to disentangle this one 
from the next one, A. (D.) Schkuhrii, Hk., wrongly quoted by Baker as a syno- 
nym of the A. (D.) Japonicum. The two ferns are quite distinct as far as I can 
see. The descriptions of these two ferns seem to have been transposed in the 
Syn. Fil. under No. 226. The A. (D.) polyrhizon is a small flaccid fern com- 
pared with the other and as far as I know a very rare one in Ceylon. Bed- 
dome’s remarks after his descrpition of A. (D.) decussatum are quite appi’oprjate : 
-‘The specimen figured is from Ceylon (C. P. 3951) and I have lately found 
it on the Tinnevelly hills; it is nearly allied to D. lasiopteris, but has a different 
caudex. Mr. Baker refers it to Diply. Schkuhrii, Hk., Bed. 1. t. 230, and places 
both under D. Japonicum, Tfmnb. which has a creeping caudex. The species 
that I have figured as D. Schkuhrii, has an erect caudex, but is bipinnate in its 
larger fronds, which this species appears never to be.” — See my remarks on the 
next one. 
101/1 Asplenium (Diplazium) Schkuhrii, Thw. 
Bed. 1. t. 230 for a small frond of C. P. 3100. Moore in the Index 
Filicum pp. 227 and 337, has so mixed up the C. P. numbers for Diplazium 
dilatatum and this one that it is quite impossible to disentangle them, Gardner’s 
No. 1059 being quoted for both ferns. Baker has quoted this fern as a synonym 
for A. (D). Japonicum I therefore conclude that good specimens of the C. P. 
3100 did not then exist in the Kew Herbarium. This fern looks very distinct in 
many respects, and is often a large bipinnate fern, whilst the other is a small 
simply pinnate and flaccid one. Thwaites gives Ambagamuwa and Saffragam Districts 
for it. My specimens were collected near the bridle path, on the banks of the 
first stream, in a belt of forest, on the way from Le Yallon Estate to Deltota, 
and I have lately collected abundant specimens of it in Dimboola and Maskeliya, 
— See notes on the former No. 101. 
102. Asplenium (Diplazium) Thwaitesii, A. Br. 
Bed. 11. t. 291, and 1. t. 160? My first specimens of this fern were 
collected amongst stones in the Hulankanda Estate in Kalibokka. It it 
abundant in the forests near the Gap into Matale, on the ridge between Nilambe 
and Deltota, and in Dimbula. It is a soft flaccid and hairy fern, peculiar 
to Ceylon, if it be not identical with A. (D.) lasiopteris, Bed. 1. t, 160, quoted 
above with a ? Baker says that this latter is “ well figured by Beddorae ” in 
this table. My own belief is that they are not distinct. After 1 . t. 160, Bed. remarks : 
— (Asplenium Thwaitesii (,C. P. 1343 a specimen of which has been forwarded 
to me by Mr. Thwaites from Ceylon, seems hardy distinct,” and again, after the 
description of 1. t. 230, he adds: “Diplazium Thwaitesii, appears to be the same 
as D. lasiopteris (Kunze) t. L60 of this work ; they are both always simply 
pinnate, and the pubescence is the same. The pinnas in my specimens of Thwaitesii 
are more approximated than in lasiopteris , and the pinnules are more 
obtuse and less falcate, but they can hardly be more than varieties.” At 11. 
t. 291 he adds: “The specimen figured is from Ceylon. It is nearly allied to 
D. lasiopteris, and until I lately received copious specimens from Mr. Thwaites 
I had referred it to that species.” — I believe they are only one species. There 
can be no doubt that Bed. 1. t. 160 for A. (D.) lasiopteris, is a better one for 
our very common Ceylon form of A. (D.) Thwaitesii, than his 11. t. 291. which 
