— 423 — 
Examples are shown in pl. V, Figs. 3 and 5. The branches of 
Phyllotheca are like those of the Calamarian Annullarie, those of Phyl- 
lotheca Rallii Zeiller (1), from the Westphalian of Asia Minor, being, 
very similar to those of Calamites ramosus (Annularia ramosa) (2). 
The fertile strobilus of Phyllotheca Railii,as Zeiller has pointed 
out, is similarly in close agreement with the Calamostachys type, 
{. e. the Annularian cone. The fructification of one, at least, of the 
Jurassic forms has several sporophyl]l verticils between two whorls 
of leaves. The older species are undoubtedly very much closer to 
Annularia. 
Although Jurassic plants are identified under the name Phylio- 
theca, the genus is essentially a Permo-Carboniferous type of wide 
distribution, it being known in Siberia, France, Asia Minor, and the 
United States, in the Northern flora, and from India, Australia, South 
Africa, and South America, in the Gangamopteris or lower Gondwana 
province. It is quite possible that the fossil from the Sisterio plant- 
ation on the Rio Pardo, Bahia, tentatively compared by Hartt (3) 
with Asterophyllites (2) scutigera Dawson, may be a specimen of 
Phyltlotheca. 
Phyllotheca Griesbachi Zeiller 
Pl. V, Figs. 9 and 10 
1902. Phyllotheca Griesbachi Zeiller, Pal. Indica, n. s., 
vol. H, n. 1, p. 30, pl. vii, fig. 1; Arber, The Glossopteris 
Flora, 1905, p. 25. 
1905. Phyllotheca cf. australis Brongn., D. White, 
Science, n. s., vol. xxi, p. 700. 
Stem finely costate ; internodes 1°"-1.5™ long ; leaves 25-30 to 
the verticil, 20°™-25"™" long, united for a distance of about 1™ to 
form a sheath; free segments linear, acute, narrowly sulcate ven- 
trally, spreading outwards horozontally or even reflered somewhat, 
and turning upward again near the apices; sheath oblique at the 
base and rapidly opening to a nearly horizontal position. 
(1) Mém. Soc. Géol. Fr., Palaeont,, u. 1, p. 65, pl. I, fig. 2-12. 
(2) Am undescribed species very close in its characters to Phyllotheca Rallii Zeill., 
occurs in the lower part of the Kanawha Series (Westphalian) of southern West Virginia 
in the United States, 
(3) Geol. and Phys, Geagr. of Brazil, 4870, pag. 243. 
