. The testimony of the rocks; . FACHYPTEEIS. the typical P. lanceolata^ and a much stouter midrib; aminute Sphenopteris too, and what seems to be a Phle-bopteris, somewhat resembling P, propinqua^ but greatlymore massive in its general proportions. The equisetaceawe find represented in the Brora deposits by JEquisetumcolumnare^ — a plant the broken remains of which occur ingreat abundance, and which, as was remarked by our Pres-ident many years ago, in his paper on the SutherlandshireOolite, must have entered largely into the composition ofthe bed of lignite known as the Brora Coal. We findass
. The testimony of the rocks; . FACHYPTEEIS. the typical P. lanceolata^ and a much stouter midrib; aminute Sphenopteris too, and what seems to be a Phle-bopteris, somewhat resembling P, propinqua^ but greatlymore massive in its general proportions. The equisetaceawe find represented in the Brora deposits by JEquisetumcolumnare^ — a plant the broken remains of which occur ingreat abundance, and which, as was remarked by our Pres-ident many years ago, in his paper on the SutherlandshireOolite, must have entered largely into the composition ofthe bed of lignite known as the Brora Coal. We findassociated with it what seems to be the last of the Cala^mites, — Calamites arenaceus^ — a name, however, whichseems to have been bestowed both on this Oolitic plant FOSSIL FLORAS OF SCOTLAND. 491 and a resembling Carboniferous species. The deposit hasalso its Lycopodites, though, from their resemblance infoliage to the conifers, there exists that difficulty in draw^ Fig. PHLEBOPTERIS. ing the line between them to which I have already ad,verted. One of these, however, so exactly resembles alycopodite of both the Virginian and Yorkshire Oolite, —L. uncifolms^^ — that I cannot avoid regarding it as specifi-cally identical; and it seems more than doubtful whetherthe stem which I have placed among the conifers is not alycopodite also. It exhibits not only the general outlineof the true club moss, but, like the fossil club mosses too,it wants that degree of ligniferous body in the rock whichthe coniferous fossils almost always possess. Yet anotherof the organisms of the deposit seems to have been eithera lycopodite or a fern. Its leaflets are exceedingly minute,
Size: 1795px × 1393px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, bookpublish, booksubjectcreation
