— 565 — 
The specimen shown in fig. 410. Plate x, is the largest of a series 
in the collection. Its characters are so well marked and constant that 
I do not hesitate to regard it as mature, notwithstanding its small 
size. Some variation in the form of the impression of the sarcotest fn 
different examples is due to maceration and displacement. 
The species differs from Cardiocarpon Oliveiranum by its more 
ovate, slightly apiculate nucellus, the strong inner test and the rela- 
tively much broader margin which is but slightly incised at the 
apex. The nucellus is not one half as large as that of the latter 
species. 
Cardiocarpon Moreiranum, like the following species, appears to 
belong to the Northern group of round-oval types, and is in complete 
agreement therewith. 
The specimen described above is named in recognition of the 
eminent contributions to science on the part of Carlos Moreira, 
Zoologist of the National Museum of Brazil, and his deep interest in 
building up the palaeontology of Brazil, as well as his skillful and 
faithful work as secretary to the Coal Commission, both in the field as 
an assistant to Dr. White, and in the office as translator of his 
reports. 
Localities : Barro Branco coal, Estrada Nova near Minas; Santa 
Catharina. About 175 meters above the granite, or 105 meters below 
the Iraty black shale. Lot 3922 (type). 
Also from the plant bed 55 meters above the granite, northeast of 
Minas. Lot 3921. 
Cardiocarpon Oliveiranum n. sp. 
Pl. x, Fig. 9. 
Seed small sub-orbicular, very faintly cordate at the base, slightly 
notched at the apex, and rather strongly rugose-striate.; sclerotest 
very thin ; border very narrow, reaching a maximum width of nearly 
75 mm at the top and rather narrowly cleft in very short angular 
lobes. 
The essential characters of this species are the nearly round form , 
and the unusually narrow border, which, like the nucellus is notched 
at the apex. I know of nothing in the lower Gondwana flora with 
which it is closely comparable. On the other hand, its features are 
those of some of our Northern round species of Cardiocarpon, among 
