— 415 — 
convex on the top, and somentimes exhibiting the ostiolum near the 
center. 
The more prominent features of these perithecia are their appro- 
ximate regularity in size, the planoconvex, leathery surface, and 
the distinct narrow surrounding crease. As shown in the photogra- 
phs, Pl. V, Figs. 4 and 1a, the perithecium occupies the full width 
of the lamina between the veins. The vent or ostiolum is seen in 
some of the perithecia, as showon in the elarged illustration, Fig. lb. 
It is clearly visible in many of the collapsed individuals. The species 
here described is found on a number of the leaves of Gangamopteris 
obovata. It is interesting to note that the type species of the genus, 
Rosellinites Beyschiagti, was described by Potonié from the cortex of 
Aspidiopsis coniferoides, a supposed gymnospermous type, from the 
Thuringian Rothliegende. 
The perithecia inthe latter are much more variable in size, 
generally twice as large, and less rounded at the ends. I suspect 
that the small bodies on the bract-like leaf from the Raniganj group 
illustrated by Feistmantel (1) as perhaps the scale of Noeggerathio- 
psis is comparable to Rosseilinites. 
The relation of this genus to the living Rosellinia is fully and 
convencingly dicussed (2) by Potonié. 
Locality: Northeast of Minas, Santa Catharina; 55 meters above 
the granite, or 225 meters below the Iraty black shale, Lot. 3586. 
Hysterites 
Unger, Chloris Protogaea, 1841, p. I 
Hysterites Brasiliensis 
N. sp. pl. V, fig. 2 
Perithecia distant, longitudinal, narrow and often much elon- 
gated, 2,5-6 mm. in length, and 1 mm. in width, longitudinally 
dehiscent, with rather broad, raised convex rim; on the leaf of 
Noeggerathiopsis Hispolt. 
In the absence of data respecting the microscopical structure the 
perithecia, shown in natural size in Pl. V, fig. 2, are characterized 
chiefiy by their greatly elongated form as well as generally large 
(1) Fl. Gondwana Syst.. vol, lll, pt. 2, pl, XLVII A, fig. 23. 
_@) Fl, Rothl. Turingen; Abh. K. Pr. Geol. Landesanst. N. F., Hft. 9, H. 2, 1893, p.28. 
