— 461 — 
Goldenberg, Fl. foss. Saraep., pt. 2 1857, p. 25, pi. vii, fig. 7,8; 
Schimper, Traité vol. 11, 1870, p. 102 pl. Ixvii, fig. 10; Weiss, 
Fl. jiingst. Steink. u. Rothl. Saarrh. Geb., 1871, p. 161, pl. xvi, 
ig.4, pl. <vil, figs, 7,9: Zeiller, Vég. foss. terr. houill., 1879, 
p. 185, pl. clxxiv, fig. 1; Feistmantel, Arch. naturw. Land. 
Bohmen, vol. iv, 1881, no. 6, 9th Abth., p. 88, pl. v, fig. 1,2; 
Weiss, Zeitschr. d. Deutsch. geol. Gesell., vol. xl, 1888, p. 569, 
fig. 4; Zeiller, Bull Soc. geol. Fr., (3) vol. xvii, 1889, p. 603 
pl. xiv. Renault, Fl. foss. bassin houill. Commentry, pt. 2, 
1890, pl. Ixiii, fig. 4; Grand Eury, Geol. et pal. bassin houill. 
Gard, 1890. p. 250, pl. xi, fig. 13; Potonié, Fl. Rothl. Thu- 
ringen, 1893, p. 190, pl. xxvii, fig. 2; Seward, Quart. Jour. 
Geol. Soc., vol. LIII, 1897, p. 326, pl. Xx, fig. 38, pl. xxiii, 
fig. 2; Kidston, Proc. Yorksh. Geol. & Poly. Soc., vol. xiv, 
1902, pt. 3, pl. lviii, fig. 2, pl. lix, fig. 1; Arber, The Glos- 
sopteris Flora, 1905, p. 170, pl. viii, fig. 
1893. Sigillaria mutans Weiss & Sterz. forma Brardii 
(Brongn.) Weiss & Sterzel, Sigill. d. Pr. Steink., pt. ii. p. 131. 
Leaf cushions Clathrarian, contiguous, prominent, slightly up- 
ward inclined, hexagonally rhomboidal, slightly round above and 
below, carinate fromthe lateral angles of the leaf scar ; ieaf scar 
of moderate size, extending nearly to the top of the cushion, less 
than the latter in width, and much less in altitude, hexagonal, very 
broadly rounded below or shallowly sinused in a rounded, strongly 
concave beneath the slender acute lateral angles, concave for a very 
short distance in the upper border next to the angles, then nearly 
straight for a considerable distance before arching strongly upward 
and over into the deep and rounded medial sinus ; leaf trace small, 
a little above the center of the leaf scar ; lateral cicatricules a little 
higher than the leaf trace, rather distant, small, and vertically 
oval. 
The features which distinguish the specimens above described 
from the normal Sigidlllaria Brardit are ;(a) the obliquity of the cus- 
hions which in the compressed specimens often fold under the upper 
part of the leaf scars, and which frequently gives the specimens the 
aspect of a flattened example of a small Lepidophloios ;(b) the very 
deep, rounded, median sinuses ; and (c) the position of the lateral cica- 
tricules, rather distant and higher than the nerve trace which is 
central. 
