Bryophyten. — Floristik etc. 



231 



Le travail contient de tres bonnes illustrations des diverses 

 formes: L. glauciDU (L.) Schimp. typica, L. g. var. gracile nov. var., 

 L. g. var. subsecundum Warnst., L. g. var. albidum (Brid.) Warnst, 

 et L. g. var. alhidum f. puvniliun (Mich.) Bescher et une carte, dans 

 laquelle est indiquee la distribution des diverses formes dans la 

 Russie. M. J. Sirks (Haarlem). 



Yasuda, A., Eine neue Art von Bartramia. (Bot. Mag. Tokyo. 

 XXIX. p. 23—24. 1915.) 



Contains the description in german of the new species Bar- 

 tramia decidiiaefolia Broth. et Yasuda nov. spec, of the Sectio 

 Vaginella, Farn. Bartramiaceae. M. J. Sirks (Haarlem). 



Dahlberg, R. H., Identification ofthe seeds of species of 

 Agropyron. (Journ. agr. Res. Washington. III. p. 275—281. 1914.) 



The writer found it possible by careful examination to distin- 

 guish in commercial seed mixtures the seeds of the three species 

 of Agropyron: A. repens, A. Smithii and A. tenerum. There is no 

 one character which can unfailingly be relied upon for this diagnosis, 

 but the combined characters of lemma, palea, and rachilla are 

 necessary for a safe determination. Probably the nearest approach 

 to a Single critical structure is found In the palea, which exhibits 

 fairJy definite characters in each of the species. 



The diagnostic differences are summarized in this table: 



M. J. Sirks (Haarlem). 



Goldschmidt, M., Die Flora des Rhöngebirges. I. 2. Aufl. 

 (Verh. phys.-med. Ges. Würzburg. XLIII. p. 151 — 170. 1914.) 



Verf., wohl der beste Kenner der Phanerogamenflora des 



