Palaeontologie. 569 



are recorded, including Sigillariostrobus nohüis, Zeiller, which is 

 new to Britain. W. N. Edwards. 



Bancroft, N., Pteridosperm Anatom v and its Relation to 

 that of the Cycads. (New Phyt. XIII. p.'41— 68. 20 texlfig. 1914.) 



This paper is devoted to a fuUy illustrated re-statement of the 

 various views regarding the origin of Cj^cadean vascular anatomy 

 which have been advanced by Scott, Worsdell, Chodat, de 

 Fraine, and other writers. Agnes Arber (Cambridge). 



Gordon, W. T., On Rhetinangiimi arheri, a new genus of Cyca- 

 dofilices from the Calci ferous Sandstone Serie s. (Trans. 

 Roy. Soc. Edinburgh, XLVIII. 4. p. 813-815. 3 pl. 1912.) 



The long stem of Rhetinmtgiuin avberi, gen. et sp. nov., bore 

 spirally arranged leaves, and had a protostelic vascular axis with 

 exarch protoxylem groups. The leaf-trace was formed by the union 

 of several adjacent primary Strands, the protoxylem being abaxial 

 throughout. The primary xylem resembles that of Heterangiiun and 

 Mediillosa, and particularly Megaloxylon, to which the new genus 

 seems to be most closely allied, though in the occurrence of short 

 water-storage, tracheids Megaloxylon is more specialised. Rhetinan- 

 giuui is distinguished from Heterangiiini by the exarch xylem, the 

 presence of secretory Clements in the inner cortex, and the sclerotic 

 hypodermal zone. W. N. Edwards. 



Kindle, E. M., Note on a Process of Fossilisation in the 

 Palaeozic Lycopods. (Geol. Mag. X. 8. p. 337— 340. pl. 11. 1913.) 



Numerous examples of Lepidodendron occur in the Pottsville 

 Sandstones of Indiana with well-preserved carbonised bark but no 

 trace of any of the internal tissues. It is concluded that, as in the 

 case of the modern Betula papyracea, the wood of Lepidodendron 

 decayed far more readily than the bark. W. N. Edwards. 



s 



Matthew, E. F., A new flora in the older Palaeozoic rocks 

 of Southern New Brunswick, Canada. (Trans. Roy. Soc. 

 Canada. VI. sect. 4. p. 83—99. 2 pl. 1912.) 



This flora, which is considered to be Lower Silurian, contains 

 only two well-defined species. These are Hiniantophyton castorense, 

 gen. and sp. n., and Arthrostigma avietensi, n. sp. Fructifications, as 

 well as stems and leaves, are described. Fragments of a stem resem- 

 bling Psilophyton also occur, and leaves of filicoid plants compared 

 with Avchaeoptevis and Eremopteris. On the evidence of these spe- 

 cimens it is considered that the flora was maritime. The ecological 

 significance of the flora of the "Fern Ledges", St. John basin, is also 

 discussed, and fluvial, deltaic and upland Clements are distinguished. 



W. N. Edwards. 



Warren, E., On some specimens of fossil wood in the 

 Natal Museum. (Ann. Natal Mus. II. 3. p. 345—380. 3 pl. 1912.) 



Two species of Dadoxylon are described from the Permo-Carbo- 

 niferous of Natal. One of these, which also occurs doubtfully in 

 Cretaceous beds, is regarded as identical with Dadoxylon australe, 



