— 463 — 
As indicated by the photograph, Pl. V, Fig. 12 the Brasilian 
stem is typically Clathrarian and as such is referable to the Brar- 
dit group. Specimens from the Transwaal with leaf scars in form 
approaching those from Brasil are referred by Seward (1) to the same 
species. Although some of the cushions of the Transwaal specimens 
are in outline similar to ours, the leaf trace is higher in the scar, 
and the lateral cicatricules are much higher, and short or nearly 
round. In the present state of over-refinement in the classification of 
species in the Brardi group of Sigillaria it is frequently difficult 
satisfactorily to determine with precision the species of specimens in 
an average state of preservation; andit is often most difficult when 
the material is scanty or poorly preserved. 
Consequently a number of leading European palaeobotanists, 
including Professor Arber, (2) in reaction from so elaboratea subdivi- 
sion in species, and systematically differentiated subordinated forms, 
are disposed to place a large number of the older species, including 
Sigillaria Menardi, described by Brongniart and others, under the 
one name Stgillartia Brardit, For my own part I doubt whether 
the material described from either the Transwaal or Brasil may 
properly be included in the Jatter species. 
The Brasilian type is apparently more closely related to Sigillaria 
Menardi Brongn. However, pending the discovery of specicmens exhi- 
biting its more exact characters I place it within the comprehensive 
Sigillaria Brardii, as that species is now broadly interpreted by many 
palaeobotanists. It is hoped that additional and better preserved 
material may be found in Brasil in order to more precisely fix its 
specific status. No doubt remains however, as to the unity of the 
South Anerican type with the Northern Sigillarian group, typified in 
Sigillaria Brardii. 
Locality : Roof of the coal near Sao Jeronymo, Rio Grande do Sul. 
About 20 metres above the Irapua coal, or 120 metres below the Iraty 
black shale. Lot 3593. 
(1) Quart, Jour. Geol. Soc., vol. liii, 1897, p. 327, fig. 2. 
(2) See The Glossopteris Flora, 1905, p. 170, 
