REVIEW OF THE CONTiaBUTlONS TO FOSSIL BOTANY. 115 



equal to that in siiniliir areas of the Carboniferous systems. This carbon 

 has been obtained from the deoxidation of carbonic acid by phmts, and con- 

 sequently indicates the existence of plants side by side with the Eozoon. 

 M'Nab, W, R. On the Structure of a Lignite from the Old Red Sand- 

 stone. Trans. Bot. Soc. Edin. vol. x. p. 312. 

 The author proposes to name the wood which he describes PalceopUys 

 MiUer'd. It was found by Hugh Miller at Cromarty. 

 Von Mueller, F., and R. Brough Smyth. Observations on some 

 Vegetable Fossils from Victoria. Geol. Mag. vol. vii. p. 390. 

 The specimens were fruits from surface deposits, and were obtained from 

 one of the deep leads at Haddon. One is a coniferous fruit allied to 

 Solfnoslrobtis, of Bowerbank, to which the name of Spondi/Iostrobus 

 Smylhii is given. Tlie others are not named, but suggestions are given 

 as to their affinities, and these indicate, according to Von Midler, a flora 

 analogous to that of the existing forest-belt of Eastern Australia. 

 Williamson, W. C. Contributions towards the History of Zamia 

 ffiffas, Lindl. and Hutt. Trans. Linn. Soc. vol. xxvi. pp. 663-674, 

 pi. 52, 53. 

 The author gives an account of the different structures which he believes 

 to belong to this plant, describing in detail the stem, leaves, and male and 

 female ffowers. 



Synojjsis of the Genera and Species described in the preceding Papers. 



FiLlCES. 



Chelepteris, Quart. Journ. Geol. Sue. vol. xxvi. p. 352. 

 Osinntidites Dowkeri, Carr. Quart. Journ. Geol. Soc. vol. xxvi. p. 349. 

 Loicer Eocene. Heme Bay. 



CvCADEiE. 



Bcnnettites Gibsonianns, Carr. Trans. Linn. Soc. vol. xxvi. p. 681, 



pi. Iviii-lx. Lower Greensand. Luccombe Chine, Isle of Wight. 

 B. maxinius, Carr. 1. c. Wealden. Isle of Wight. 

 B. Peachianus, Carr. 1. c. ; pi. Ixii. Middle Oolite. Helmsdale, Suther- 



landshire. 

 B. Portlandicus, Carr. 1. c. ; pi. hi. Lower Purbeck. Isle of Portland, 



Dorsetshire. 

 B. Saxbyanus, Carr. 1. c, ; pi. Ivii. Wealden. Isle of Wight. 

 Bitcklandia a«o;«rt/«, Presl^ Trans. Linn. Soc. vol. xxvi. p. 679; pi. liv. 



tig. 1-3. Wealden. Chickfield, Sussex. 

 B. Mantellii, Carr. I.e.; pi. liv. fig. 4. Wealden. Cuckficld, Sussex. 

 B. Milhriana, Carr. I.e.; pi. Iv. tig. 1. Coral Rag. Brora, Sutiier- 



landshire. 



B. squamosa, Brongn. 1. c. Sto7iesJield Slate. Stonesfield. 

 Crossozamia Buvignieri, Pomel, I.e. p. 680. Jurassic. St. Michel, 



France. 



C. Moreaui, Pomel, 1. c. Jurassic. St. IMichel, France. 



MantelUa inclusa, Carr. I.e. p. 681; pi. Ixiii. tig. 2 and 3. Lower 



Greensand. Potton, Cambridgeshire. 

 AI. intermedia, Carr. 1. c. ; pi. Ixiii. fig. 4 and 5. Lower Purbeck. Isle 



of Portlaiul, Dorsetshire. 

 3/. microphylla, Brongn. 1. c. ; pi. Ixiii. fig. 6. Lower Purleck. Isle 



of Portland, Dorsetshire. 



i2 



