. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. MERIANOPTERIS. 145 lanceolate, narrowed slightly towards the apex, pinnatisect or pinnatifid. Pinnules or lobes very delicate, rounded at the apex. Median nerve distinct, somewhat curved towards the apex. Secondary nerves arising at an acute angle, dichotomous, and flexuous. The lowest pair of lateral nerves, arising from the base of the median vein, dichotomise, and then arch to join the corr
. Catalogue of the fossil plants of the Glossopteris flora in the Department of geology. Paleobotany -- Carboniferous; Paleobotany -- Catalogs and collections; Plants, Fossil -- Catalogs and collections. MERIANOPTERIS. 145 lanceolate, narrowed slightly towards the apex, pinnatisect or pinnatifid. Pinnules or lobes very delicate, rounded at the apex. Median nerve distinct, somewhat curved towards the apex. Secondary nerves arising at an acute angle, dichotomous, and flexuous. The lowest pair of lateral nerves, arising from the base of the median vein, dichotomise, and then arch to join the corresponding nerves of the pinnules on either side. Feistmantel, in his original description, states that the two lower lateral nerves of each pinnule "join with the same of the adjoining. Fig. 34.—Merianopteris major, Feist. After Feistmantel. Nat. size. leaflets in a pointed ; This union is not, however, clearly shown in his figures. This frond presents an unusual type of nervation, and is unfortunately only known from Gondwanaland by a few specimens figured by Peistmantel from the Eaniganj group. Tenison-Woods,1 however, has recorded this species from the Ballimore Coalfield of New South Wales, apparently on a higher horizon, but I am not convinced that his plant is either specifically or even generically 1 Tenison-Woods (83), p. 114, pi. vi, figs. 2, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). Dept. of Geology; Arber, E. A. Newell (Edward Alexander Newell), 1870-1918. London, Printed by order of the Trustees
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