210 
The Amoeban^ Adinophryan, 
sporidia would render it a very interesting species, independently 
of its manner of growth, &c. As far as our personal knowledge 
goes, we cannot recall any species having this character. The vast 
majority of these plants having octosporous asci ; in a few instances, 
such as Dothidea tetras]pora, B. and Br. ; Valsa tetratrujpha^ B. 
and Br. ; Valsa salieella, Fr., &c., the asci are tetrasporous, while, 
upon the other hand, some species of the genus Hypocrea, such as 
H. rufa, gelatinosa, delicatula^ &c., have sixteen, and in a few 
instances furnished by the genera Torruhia and Diatrypella, and 
by Sphseria ditopa, Fr., &c., the number of sporidia is unhmited. 
Being fortunately in the possession of two specimens of Sphseria 
morbosa, one communicated by Mr. Peck, and the other by Mr. 
Gerard, we examined them with a view of testing the accuracy of 
Mr. Taylor's observations. One of our specimens exhibits the 
conidial stage described by Mr. Peck ut ante, but in it the asci 
are barren. The other specimen, from Sandlake, N.Y., contains 
asci, paraphyses, and sporidia. The asci are not of uniform size, 
but those we examined measured • 0005 inch by * 003 inch. The 
sporidia measure '001 by '0003 inch, are hyaline, with a pale- 
yellow tinge, flask-shaped, uniseptate, biseriate, and very much 
crowded in the asci, so as to make it a matter of considerable diffi- 
culty to count them ; but whenever we succeeded in so doing, we 
always found the number to be eight. 
Sphseria morbosa bears a considerable resemblance to Cucurbi- 
taria cupularis, Fr.,* but its parasitic habit, upon the bark of living 
branches, clearly indicates its affinity with such plants as Gibbera 
vaccini, Fr., in which genus we think it should be placed. 
Tebrington St. Clement's. 
IV. — The Amoeban, Adinophryan, and Bifflugian Bhizopods. 
By a. C. Wallich, M.D., F.L.S., &c. 
In last November's number of the ' Monthly Microscopical Journal,' 
and the number for this month (April), notices have appeared 
regarding alleged new discoveries and observations on certain 
Pthizopods published by Professor Leidy in recent issues of * Silli- 
man's Journal.' As I derive my present information on this head 
altogether from these notices and one other journal to which I 
shall have occasion immediately to refer, it is not my wish at present 
to enter further into the questions raised than I am about to do. 
Enough has been written, however, to warrant the conclusion that 
♦ ' Sphseriacei Britannici,' No. 57. 
