474 
about 1.5 mm 10 i]g; nucleus sim が も globular? lod が d in a cavi か be- 
neath cortex. Tetraspores fbi’ming a dense soms in a similar but 
thinner sporophylls, situated among moniliform co け ica] filaments of the 
both surfaces， oblong, cruciate. 
The が nicture of む o 打 d is dens も consi が ing of three ]ayei*s of cells ; 
1:he meduliaiy, of densely iiifenvoveu short 拉 laments ; the intwmediat も 
of a ;few-l 化 y が s of large roundish cells, often elongating tangentially ; 
the cortica], of ve パ ically s げ btecl subciibic cells, arranged not in di- 
chotomous ち laments. The cells of int が mediate and medullary layer 
are 负 lied with liiglily が fVaotible substance. The structure of a sporo- 
phjll differs from that of the sterile portion of frond; the filamentous 
layer is more loosely constructed, and the cortical layer is composed 
of veirtical dichotomous moni り form fi し iments in t ぉ trasporic sporophyll, 
while in cystocarpic ones, the structure of coirtical layer is the same 
as in other portion, the intermediate cells b お ng smaller*. I 打 an old 
扫。 ecirae 打 I found small dot じ ke protuberances densely scattered all over 
the surface of む ond. I took them, at first， for the younger fommtion 
of t が rasporic sori ; but， afterwards, on examining fully fbrmed sporo- 
pliylls, I came to the conclusion that they were in fact the beginning 
of sporophy]k. 
Color is rosy-red when young, becoming darker in ag も Substance 
is pergamenous in younger portion, more cartilaginous in older, and the 
plant does not adhere to paper in drying. 
Formerly I considered the present plant to be a new species of 
Cr'iiptonemia, taking into account the structure of む〇 打 (1 and the cha- 
i.acters of sporophyll, but not without a, doubt on the difference of 
habit. So I sent it to the ]a；te Pro た Schixdtz under the name Cryp- 
to れら mici lanceolata to ask him of my determination. In reply, he wrote 
to me : (‘ Ihre Crypt, lanceolata ist aiigenscheiniicn eine gariz neue Art. 
Ich zwei:fele jeaoch, ob dies© Art zu (Jryptonemia z\\ が elle 凸 ist oder in 
eine ganz neue Gattung. パ He wrote to me so， but he did not tell me on 
what character it should be e が ab じ shed in a new genn ん On receiving 
his answer, I entered into more close examination of my plant ； but I 
could not find any di だ 6が打〇6 so in り) ortaiifc as to be e が ablished in a new 
genus, except the difference of habit and the presence of sporophylls 
on the surface. (It seems to mo that sporophylls in the species of 
Ory が cmemia are mostly proli も rated from margin, though I have seen 
