. The testimony of the rocks; . 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
. The testimony of the rocks; . 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,. 492 ONTHELESSKNOWN and set alternately on a stem slender as a hair, — circum-stances in which it resembles some of the tiny lycopoditesFig. 147. of the tropics, such as Lycopodium apo- dium. I must mention, however, thatthe larger plant of the same beds whichI have placed beside it, and which resem-bles it so closely that my engraver findsit difficult to indicate any other differencebetween them than that of size, appearsto be a true fern, not a lycopodium. Toyet another vegetable organism of thesystem, — an organism which must beregarded, if I do not mistake its charac-ter, as at once very interesting and ex-traordinary, occurring as it does so low in the scale, andbearing an antiquity so high, — I shall advert, after a pre-liminary remark on a general characteristic of the flora towhich it belongs, but to which it seems to furnish a strikingexception. From the disappearance of many of those anomaloustypes of the Coal Measures which so puzzle the botanist,and the extensive intr
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