Band 108. Nr. 5. XXIX. Jahrgang. II. Bd. Nr. 5. 



Botanisches Centralblatt. 



Referirendes Organ 



der 



Association Internationale des Botanistes 

 für das Gesamtgebiet der Botanik. 



Herausgegeben unter der Leitung 



des Präsidenten: des Vice- Präsidenten : des Secretärs. 



Prof. Dr. R. v. Wettstein. Prof. Dr. Ch. Flahault. Dr. J. P. Lotsy. 



und der Redactions-Commissions- Mitglieder : 



Prof. Dr. Wm. Trelease, Dr. R. Pampanini und Prof. Dr. F. W. Oliver. 



von zahlreichen Specialredacteuren in den verschiedenen Ländern. 



Dr. J. P. Lotsy, Chefredacteur. 



No. 3L 



Abonnement für das halbe Jahr 14 Mark 



durch alle Buchhandlungen und Postanstalten. 



1908. 



Alle für die Redaction bestimmten Sendungen sind zu richten an Herrn 

 Dr. J. P. LOTSY, Chefredacteur, Leiden (Holland), Witte Singel 26. 



Cole, G. W., Bermuda in periodical literature, with occa- 

 sional references to other works. A bibliography. (The 

 Riverdale Press, Brookline, Mass. Printed for the author. 1907. 8°. 

 XII, 273 pp. with frontispiece portrait of the author and 8 facsi- 

 mile reproductions of title-pages of old works.) 



A scholarly. technically welldone bibliography, with general- 

 topic index. The edition limited to 350 copies, of which 50 are on 

 large paper. Trelease. 



Holm, T., Isopyrum hiternatunt Torr, et Gr., an anatomical 

 study. (American Journ. of Science VI. 52. p. 133 — 140. f. 1 — 3. 

 Febry. 1908.) 



Various views have been expressed in regard to Isopyrum; 

 according to Maximovicz, Franchet, De Candolle, Bentham 

 and Hooker the genus is supposed to comprise species with or 

 without nectaries in the flower, while Reichenbach segregated the 

 annual Leptopyrum and Rafinesque the genus Enemion, which 

 has no nectaries. When examining the species, and especially the 

 structure of the flower besides the general habit, it does appear as 

 if the genus is not a very natural one. For instance the peculiar 

 californian /. stipitatum with the ovaries stipitate as in Coptis, and 

 the Japanese /. nipponicuin with only two horizontally spreading 

 carpels, these species besides several others are difficult to classify 

 in a natural way with those of Isopyrum s.s. The rhizomes with the 

 roots show a very different development in many of the species, 

 but it would not be safe, of course, to divide the genus on account 



Botan. Centralblatt. Band 108. 1908. 8 



