. 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. 74 GLOSSOrTERIS. as a variety of G. Browniana. I am inclined to regard it as probable that G. angustifolia may have been borne on the same plant as G. indica, tbat it is simply a narrow frond corresponding with G. indica in much the same way as some of the narrower fronds of G. Browniana ( that described by McCoy as G. linearis) were probably associated in the living state with the spathul
. 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. 74 GLOSSOrTERIS. as a variety of G. Browniana. I am inclined to regard it as probable that G. angustifolia may have been borne on the same plant as G. indica, tbat it is simply a narrow frond corresponding with G. indica in much the same way as some of the narrower fronds of G. Browniana ( that described by McCoy as G. linearis) were probably associated in the living state with the spathulate fronds usually regarded as typical of G. Browniana. It is a form practically unknown from Australia, where G. indica is rare, whereas it is fairly abundant in Tndia and South Africa, where G. indica is of common occurrence. There is also a great similarity between the nervation of these two species, allowing for the difference in size and shape. On the other hand, G. angustifolia appears to be a fairly constant type of frond, whereas the narrower fronds here included under G. Browniana vary so greatly among. Fig. 19. -Glossopteris angustifolia, Brongniart. Enlarged drawings of the type- specimen. After Zeiller. x 2. themselves that it seems hopeless to attempt to distinguish between them and the spathulate type. For this reason, and in view of the admittedly artificial nature of this classification (see p. 46), it seems convenient to maintain for the present the specific rank of G. angustifolia. This species was first described by Brongniart,1 who regarded it as distinct from G. Browniana and G. indica. The nervation of the type-specimens has recently been accurately refigured by Zeiller2 (Text-fig. 19). As Feistmantel and Zeiller have pointed 1 Brongniart (28-), p. 224, pi. lxiii, fig. 1. 2 Zeiller (961), p. 370, text-figs. 14, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and ap
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