398 Palaeontologie. — Agricultur, Horticultur und Forstbotanik. 



rough reexamination and republication of the types referred by various 

 authors to this genus. One new species P. alcicorne D. W. is recog- 

 nized. 



The palaeontological evidence, which is entirely botanical^ shows 

 the Perry formation to be of Devonian age, probably of the Chemung 

 Catskill stage, thus confirming the conclusions reached by Sir William 

 Dawson many years since. D. F. Penhallow. 



White, David, Permian Elements in the DunkardFlora. 

 (Bull. Geol. Soc. Amer. Vol. XIV. 1902. p. 538-542. 

 Abstract.) 



Brings forward arguments which tend to disprove the prevalent 

 view that the Dunkar d Flora is Permian, and that it is really to be 

 regarded as Carboniferous of Rothliegende age. D. P. Penhallow. 



White, David, Summary ofFossilPlants recordedfrom 



the Upper Carboniferous and Permian for- 



mations of Kansas. (U. S. Geol. Surv. Bull. CCXI. 



1903. p. 85—117.) 



Presents a summary of evidence afforded by fossil plants relative 

 to the age and correlations of the Upper Palaeozoic Formations in 

 Kansas, which shows that a portion belongs to the. Upper Carboni- 

 ferous, while yet another portion is undoubtedly Permian. 



D. P. Penhallow. 



White, David, The Seeds of Aneimltes. (Smithson. Mise. 



Coli. Vol. XLVII. part. 3, p. 322—331. 1904. 2 pl.) 



In 1900 studies of material from the Iower Pottsville formations 

 of Virginia, brought to light numerous seeds which were found not only 

 in constant association with, but actually united to the fronds of what 

 had hitherto been recognized as a species of Adiantites, which must 

 accordingly be brought into the Cycadofilices under the name of Anei- 

 inites fertilis, n. sp., but the author reserves the name of Wardia fer- 

 tilis for the seeds alone. These seeds are regarded as „more closely 

 related to Lagenostoma than to any other Cycadofilic type at present 

 recognized". Attention is also directed to the suspicion which now 

 naturally attaches to the sterile fronds of Eremopteris, Pseudopecopteris 

 and Triphyllopteris. D. P. Penhallow. 



Wieland, G. R., TheProembryo of the Bennettiteae. (Amer. 



Journal of Sc. XVIII. 1904. p. 445—447. pl.) 



The author refers to the discovery in Cycadeoidea wielandi of pro- 

 embryos which throw much fresh light upon the embryogeny of this 

 group, and especially upon that of Ginkgo with which it shows the 

 most distinct agreement. The inference is drawn that „the present dis- 

 covery unmistakably determines for the first time, that the embryogeny 

 of Ginkgo is the most primitive among existing Gymnosperms.'^ 



D. P. Penhallow. 



Warburg, 0., Beschreibung der ostafrikanischen Bast- 

 banane. (Tropenpflanzer. 1904. p. 116 ff. Mit 2 Ab- 

 bildungen.) 



Die ostafrikanische Bastbanane, Musa längureiisis Warburg et 

 Moritz, nov. spec, über welche zuerst F. Moritz im „Tropenpflanzer", 



