50 
BRITISH EOCENE FLORA. 
AspiDiUM LiGNiTUM, Heer. Beitr. SLiclis.-Tliiiring. Braunlc, p. 424, pi. ix, figs. 2, 3, 
1861. 
Drtandra RiGiDA, Heer. lb., p. 427, pi. x, fig. 15. 
AsPiDiUM Meyeui, Ludwig (non Heer). Palaeontograpliica, vol. viii, p. 63, pl.xii, fig. 3, 
1860. 
Pecoptekis LIGNITUM, Heer. Lignites of Bovey Tracey, Phil. Trans., vol. clii,p. 1047, 
pi. Iv, figs. 5 and 6 (not fig. 4) ; pi. Ivi, figs. 2 — 1 1 
(not fig. 1), 1861. 
OsMUNDA GRUTSCHREiBEra, Stur. Jahrbuch der k. k. Geol. Eeichsanstalt, vol. xx, 
p. 9, pi. ii, 1870. 
— LIGNITUM, Heer. Ueber die Braunkohlen-Flora des Zsily-Thales, Jahrbuch 
der k. Ungar. Geol. Anstalt., vol. ii, p. 9, pi. 1, figs. 
2, 3, 1872. 
0. fronde pinnata, pinnis elongato-linearibus, subcoriaceis, apice valde attenuatis et 
acuminaMs, basi breviter petiolatis, margine profunde inciso-serratis rarius remote 
denticidatis vel hasi undidatis ; nervatione Pecopteridis vera, nervo primario basi valido 
prominente, subrecto, apicem versus attenuato, mdiviso ; nervis secundariis numerosis, 
angidis acutis etjredientibus, plus minusve fleocuosis sub apicibus loborum plermnque 
furcatis ; nervis tertiariis inferioribus furcatis sub angulis minus acutis orientibus, rarius 
elongatis convergenti-arcuatis, sinum attingentibus ; nervis tertiariis superioribus sub 
angulis acutissimis orientibus, scepe simplicibus subcurvatis jlexuosisve. 
Middle Bagsliot, Bournemouth and Bovey Tracey. 
The pinnules are found in layers in some of the black clay beds both east and west of 
the- pier at Bournemouth. Whole slabs are often covered with these pinnules, which are 
always detached. When first found they are perfectly preserved and of a substance like 
coal, but on exposure to the air the leaves crack and dry up from the matrix in a few 
moments, and their preservation is difficult. Occasionally well-preserved pinnules are 
also found in the Eern-beds under the Marine Beds ; elsewhere they are rare, and towards 
Poole I have found but a solitary fragment. They occur precisely as at Bovey, and are 
equally associated with terminal buds of a Sequoia-like Conifer, rush-like leaves, and 
spines of Cactus. Stur has figured a specimen with pinnae attached, which he has 
named 0. Grutsclireiberi ; and he has obliged us by stating that he still considers the 
presence of a small basal expansion on the under-side of the pinna as of specific value. 
In the ' Quarterly Journal of the Geological Society,' vol. xxvi, pi. 24, p. 349, Carruthers 
described and figured a Eern-stem under the name of Osnmndites Boiokeri, from the 
Thanet Sands, which was so beautifully preserved that even the starch granules were 
replaced by silica and so preserved. It belonged to a larger species than 0. regalis 
(see p. 53). 
The following corrections have, in our opinion, to be made in Prof. Heer's descrip- 
tion of Osmunda lignitum [Pecopteris, Heer), from the ' Lignites of Bovey Tracey.' 
PI. V, figs. 9, 10, 1 1, ' Lignites of Bovey Tracey,' represent circinate vernation, found as- 
