Fossil plants, Vol. 2

=Recent Lycopodiales= (General) 30–33 Lycopodiaceae (Recent) 33–49 Selaginellaceae (Recent) 49–58 Isoetaceae (Recent) 58–66 =Fossil Lycopodiales= 66–91 Isoetaceae (Fossil) 66–68...

shoots 139–181 1. _Lepidodendron esnostense_ 139, 140; 2. _L. rhodumnense_ 140; 3. _L. saalfeldense_ 141; 4. _L. fuliginosum_ 141–160; 5. _L. Harcourtii_ 160–163; 6. _L. Wünschi...

I. =Leptosporangiate Filicales= 283–316 Eufilicineae 284–316. Osmundaceae 285, 286; Schizaeaceae 286–291; Matonineae 291–293; Loxsomaceae 293; Hymenophyllaceae 294; Cyatheaceae...

_Taeniopteris_ 485–494; _Weichselia_ 494–496; _Glossopteris_ 496–512; _Gangamopteris_ 512–517; _Lesleya_ 517–519; _Neuropteridium_ 519–523; _Cardiopteris_ 523–525; _Aphlebia_ 52...

The account of the Sphenophyllales given in the first volume[2] of this work must be extended and somewhat modified in the light of recent work on the fertile shoots of _Sphenop...

The two recent genera _Psilotum_ and _Tmesipteris_ are usually spoken of as members of the family Psilotaceae which is included as one of the subdivisions of the Lycopodiales. I...

The recent members of the Lycopodiales are considered apart from the extinct genera in order that our examination of the latter may be facilitated by a knowledge of the salient...

Among the best known plants in the Palaeozoic floras are the genera _Lepidodendron_ and _Sigillaria_, types which are often spoken of as Giant Club-Mosses or as ancestors of exi...

In view of the close resemblance between _Lepidodendron_ and _Sigillaria_, another lycopodiaceous plant characteristic of Carboniferous and Permian floras, a comparatively brief...

intervals by the occurrence of more or less regular verticils of scars marking the position of deciduous shoots. Grand’Eury[543] has figured cones which he believes to be those...

_Stigmaria ficoides_ is the name given to cylindrical casts met with in Palaeozoic rocks, from the Devonian[553] to the Permian[554], characterised by a smooth or irregularly wr...

Although in many respects the genus _Bothrodendron_ agrees very closely in habit and in its anatomical features with _Lepidodendron_, there are reasons for referring it to a dis...

In 1877 Williamson[662] published an account of some fossil seeds which he referred to Brongniart’s genus _Cardiocarpon_[663], a generic title for certain Gymnospermous seeds. S...

This division of the Pteridophyta includes both the true ferns (Filicineae) and the less familiar water-ferns or Hydropterideae. The almost complete absence of satisfactory evid...

From the Culm of Silesia, Stur[761] described impressions of sterile fronds which he named _Todea Lipoldi_ on the ground of the similarity of the finely divided pinnules to thos...

The discovery of Pteridosperms has necessarily led to a considerable modification of the views formerly held that existing genera of Marattiaceae represent survivors of a group...

This family name, first suggested by Unger, may be conveniently adopted for the numerous species of petrified tree-fern stems characteristic of the Lower Permian and Upper Carbo...

The fossils hitherto classed with the Ophioglossales are not such as afford any satisfactory evidence in regard to the past history or phylogeny of the group. In the generalised...

The term Botryopterideae, first used by Renault, has been applied to a group of Palaeozoic ferns ranging from the Lower Carboniferous to the Permian and containing several gener...

This family is usually spoken of as including the two genera _Marsilia_ and _Pilularia_. Lindman[1202] has however founded a third genus, _Regnellidium_, on a Brazilian plant wh...

The genera and species described in this Chapter are founded on sterile leaves or portions of leaves, and in the great majority of cases the reproductive organs are either imper...