. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. FLOKA OF THE DEVONIAN. 551 Nmropteris Daivsoni, ITartt (Fig. 193). This remarkable fern, discovered by i\Ir Ilartt, and to which he has done me the honour to attach my name, presents curious points of affinity to Cyclopterids and Neuroptorids, and perliaps may, when more fully known, be placed in a distinct genus. Mr llartt describes it as follows:— " Fro
. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. FLOKA OF THE DEVONIAN. 551 Nmropteris Daivsoni, ITartt (Fig. 193). This remarkable fern, discovered by i\Ir Ilartt, and to which he has done me the honour to attach my name, presents curious points of affinity to Cyclopterids and Neuroptorids, and perliaps may, when more fully known, be placed in a distinct genus. Mr llartt describes it as follows:— " Frond, pinnate or bipinnatc (most probably the latter); rachis thick, sometimes when compressed half an inch wide, coarsely striated, .always winged; pinnai (pinnules?) alternate, very oblique, linear lanceolate, moderately acute at apex, slightly notched above its base, decurrent on the rachis, often about an inch in width, and sometimes six inches long; margin strong, a few large undulations; midrib thick, tapering gradually, disappearing bcfoi-e reaching the apex, straight, entering a pinna (pinnules ?) obliquely from the upper side, giving off very numerous nerves, which spring very obliquely from it, running about parallel with it, forking once near the midrib, and once more half-way to the margin, sometimes again close to the margin, the whole series being strongly arched. *' The pinna?, particularly when the midribs arc thick, show a strong tendency to split up in a direction to the rachis. I have sometimes noticed them folded in a conduplicated ; Neiiropteris crassa, sp. nov. Single pinnules, broad, oval, oblique at base, thick, smooth above with very numerous arched veins. A pinna with somewhat larger piimules similarly veined may belong to the same species. There are fragments which possibly indicate two other species of Neiiropteris. Sphenopteris Hoeninghausi, Brongniart. One of the fcnis from the shales near St John appears to be identical with the abo
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
