Page:Physical Description of New South Wales and Van Diemen's Land.djvu/24

xvi Plate VI. Fig. 1, Glossopteris Browniana Ad. Brong., p. 125. 247. 1a. A portion showing the reticulated venation. 2, 3. Pecopteris odontopteroides Morris, p. 127. 249. 4. This figure illustrates a probable variety (lancifolia) of the same species : further examination of more perfect specimens may prove it to be distinct. 5. Zeugophyllites elongatus Morris, p. 127. 250. 5a. A portion enlarged, showing the venation, as well as remains of the stomata. Plate VIII. 1, 2. Pecopteris Australis Morris, p. 127, 128. 248. 2a. A pinna magnified slightly, showing the venation. 3, 3a. Sphenopteris lobifofia Morris, p. 125. 246. 4, 4a. Sphenopteris atata (Pecopteris Brong.), var. exilis, p. 125. 246. 5, 6. Impressions of leaves from the travertin, supposed to belong to extinct species of plants (fig. 7.), undetermined, p. 254. Plate VIII. 1. Amplexus arundinaceus Lonsdale, p. 91. 267., nat. size. 2. Stenopora Tasmaniensis Lonsdale, p. 94. 262., nat. size; figured from a specimen in the collection of the Geological Society. 2a. Portion magnified, showing the row of prominent tubercles surrounding the perfectly open mouths. 2b. Magnified mouths, partly obliterated or filled up. 2c. Magnified mouths, perfectly closed. 2d. Magnified representation of tubular mouths, separated both by a single tuberculated ridge and by double ridges, with an inter- vening groove, finely punctured. 2e. Portion magnified, showing the successive contractions of the tubes. 3. Stenopora ovata Lonsdale, p. 263., nat. size. 3a. Portion magnified, showing the repeated contractions of the tubes. 3b. Portion magnified, from a cast of the outer surface, showing the rare occurrence of tubercular impressions in the inter- spaces of the mouths. 4. Stenopora informis Lonsdale, p. 264 ; figure reduced about one- third from the natural size. 4a. Portion magnified, showing the contractions of the tubes. 5. Stenopora crinita Lonsdale, p. 91. 265. 5a. A portion of the tubes magnified, the transverse lines marking the contractions.