38 Botanisches Centralblatt. 



Acetylenmethode. (Sitzber. ksl. Ak. Wiss. Wien. 1. CXXV. p. 

 189—216. 2 F. 1 T.) 



VII. Palaeontologie. 

 Cf. XVIII. Andrews. 



Berry, E. W. 1916. A fossil nutmeg from the tertiary of Texas. 

 (Amer. Journ. Sc. XXIII. p. 241 — 245. 6 f ) 



Berry, E. W. 1916. An eoceneancestor of the Zapodilla. (Amer. Journ. 

 Sc. IV. XXXIX. p. 208—213. 1 pl.) 



Berry, E. W. 1916. Palaeobotanic evidence of the age of the Morri- 

 son formation. (Bull. geol. Soc. Amer. XXVI. p. 335—342.) 



Berry, E. W. 1916. The age of the cretaceous flora of southern New 

 York and New England. (Journ. Geol. XXIII. p. 608—618.) 



Beyle, M. 1916. Ueber das Vorkommen einiger in Schleswig-Holstein 

 und im nördlichen Hannover ausgestorbener oder seltener Pflan- 

 zen im fossilen Zustande [Schluss]. (Allg, bot. Zschr. XXII. 

 p. 74—79.) 



Dutt, C. P. 1916. Pityostrobus macrocephalus, L. and H. A. tertiary 

 cone showing ovular structures. (Ann. of Bot. XXX. p. 529—549. 

 1 pl. 2 f.) 



Frentzen, K. 1916. Die Flora des Buntsandsteins Badens. (Freiburg 

 1916. 8°. 71 pp. 2 T.) 



Holliek, A. 1916. A fossil fern monstrosity. (Mem. New York bot. 

 Gard. VI. p. 473—474. 2 pl.) 



Humphreys, E. W. 1916. Triassic plants from Sonora, Mexico, inclu- 

 ding a Neocalamites not previously reported from North America. 

 (Mem. New York bot. Gard. VI. p. 75—78. 1 pl.) 



Nagel, K. 1916. Ueber Mazeration von kohlig erhaltenen Pflanzen- 

 resten. (Natw. Wschr. N. F. XV. p. 569—571.; 



Pietzseh, K. 1916. Der pflanzenfuhrende Glazialton von Luga bei 

 Dresden und die Gliederung des Elbtaldiluviums. (Sitzb. natf. Ges. 

 Leipzig. XLII. p. 21—54. 6 A.) 



Wieland, G. R. 1916. American fossil Cycads. Vol. II. (Carnegie Inst. 

 Washington. 1916. ill.) 



VIII. Microscopie. 



IX. Cryptogamen im Allgemeinen. 



(Vacant.) 



X. Algae. 



Acton, E. 1916. On a new penetrating Alga. (N. Phytologist. XV. 



p. 97—102. 1 pl. and fs.) 

 Acton, E. 1916. On the structure and origin of „Cladophora Balls". 



(N. Phytologist. XV. p. 1-10. ill.) 

 Börgesen, F. 1916. The marine algae of the Danish West Indies. Part 



III. Rhodophyceae. (2). (Dansk bot. Ark. III. p. 81-144. 62 f.) 

 Clark, F. C. 1916. Diatoms. '(Bull. S. California Ac. Sc. 1916. p. 43— 45. ill.) 

 Ernst, A. 1916. Untersuchungen an Chara crinita. (Actes Soc. helvet. 



Sc. nat. XCVII. 2. p. 198.) 

 Gran, H. H. and K. Yendo. 1914. Japanese Diatoms. 1. Chaetoceras; 



2. On Stephanopyxis. (Vid.-Selsk. Skrift Christiania. 1914. 29 pp. 16 f.) 

 Harper, R. A. 1916. On the nature of types in Pediastrum. (Mem. 



New York bot. Gard. VI. p. 91-104. 2 f.) 

 Hodgetts, W. J. 1916. Dicranochaete reniformis Hieron., a fresh water 



Alga new to Britain. (N. Phytologist. XV. p. 108—116. ill.) 

 Howe, M. A. 1916. A note on the structural dimorphism of sexual 



