“me 509 
Irapud coal west of the house: of Doctor Ramiro Barcellos, near 
Rio Irapud, Rio Grande do Sul. About 135 meters above the granite 
or the same interval approximately below the Iraty black shale. 
Lot 3591. 
Glossopteris ampla Dana 
Pl. vi, Fig. 9. 
1849. Glossopteris ampla Dana, Wilkes Explor. Exped., 
vol. x, p. 717, pl. xiii, fig. la, lb; Feistmantel, Palaeontogr., 
Suppl, 1878, p. 91, pl. xi, fig. 2, pl. xii, fig..7 5 Johnston, Geol. 
Tasmania, 1888, p. 144, pl. viii, fig. 3, pl. IX, fig. 3; 
Feistmantel, Mem. Geol. Surv. N. S. W., Palaeont., no. 3, 1890, 
p. 122, pl. xix, fig. 1, 2; Feistmantel, Spis. poct. jubil. c. Kral. 
cesku. spol. Nank, (2) vol. III, 1890, p. 16, Pl. 1, fig. 4; 
Jack. & Etheridge, Geol. Pal. Queensland, 1892, p. 195, pl. xv, 
fig. 7; Arber, The Clossopteris Flora, 1905, p. 78, fig. 20. 
Leaves very large, petiolate, broadly ovate to oblong-ovate, nar 
rowed more or less acutely at the base, obtusely pointed or slightly 
emarginate at the apex ; midrib very broad, tapering rapidly to the 
apex of the leaf; lateral nerves oblique, arching rapidly while anas- 
tomosing in a somewhat irregular elongated’ mesh, becoming close 
and parallel with a more elongated and narrower mesh while 
passing obliquely to the border where they number 35-40 to the cen- 
timeter. 
The material from Estrada Nova near Minas contains two fragments 
of larg leaves that clearly represeut the species described by Dana, (1) 
in 1849, from the Newcastle series in New South Wales. As compared 
with Dana’s original types, no. 1359 of the fossil plant collection in 
the United States National Museum, the Brazilian specimens differ only 
by a slightly closer and more regularly parallel as well as less 
frequently anastomosing mesh in the peripheral zone of the leaf. 
It should at the same time be noted that the contrast between the 
areoles near the midrib and those near the border is not as shown 
in the original illustration, there being no distinction or zona- 
(1) Wilkes Exploring Expedition, vol. x, pl. xiii, figs. la, Ib. 
