502 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
This form has never been met with, so far as I am aware, since 
its original discovery. In view of the fact that the article above 
quoted marks the earliest record of pseudoplasmodium formation, 
and also that this is a type to which van Tieghem and Fayod have 
doubtfully referred other forms, it is unfortunate that GuttiiUna 
rosea is not described more adequately and illustrated by drawings. 
The following translation of that portion of the original descrip¬ 
tion, which is in Russian, that relates to this form is appended for 
convenience of reference. In Just’s Jahresbericht of 1873, may also 
be found an accurate translation of the complete article, with the 
exception of some minor omissions relating to Sappinia-like amoebae. 
Guttidina rosea represents a simplified type of the Myxomycetes. 
It appears as a microscopic drop of rose color, attaining a length of 
.07 mm. and borne upon a stalk of about equal length. Guttulina 
consists of a heap of cells, which is not covered with a common 
membrane. In the head, the cells are globular, and in the base they 
are closely laid and show wedge shaped individuals, arranged in 
rows. , All the cells contain a red protoplasm and a nucleus; in 
water the whole contents of the cell germinate and appear in the 
form of an amoeba, similar to Amoeba Umax Dujardin, the fusion 
of which the author did not observe. In a young condition, they 
divide. From this account, it appears that G. rosea represents a 
new organism, which is similar to Dictyostelium mticoroides Brefeld, 
but without the enveloping membrane, and the amoebae here only 
heap up, form cysts or spores and do not fuse.” 
Guttulina protea Fayod. Plate 5, fig. 27-39. 
Bot. zeit., bd. 41, p. 167-177, pi. 2, 1883. 
Gopromyxa protea Zopf. 
Sori 1-3 mm. high, sessile or short stalked, of somewhat irregular 
form, yellowish white, with crystalline lustre. Spores 9 /x by 14 /x; 
hyaline, colorless or slightly yellowish, more or less oblong or oval, 
bean shaped, or almost triangular in outline. 
On dung of horse or cow. Germany. 
This form, which is known only from Fayod’s original description, 
is retained under its original name, notwithstanding the fact that it 
has been separated by Zopf under the name Gopromyxa on the 
