Band 137. Nr. 10. XXXIX. Jahrgang. I. Bd. Nr. 10. 



Botanisclies Centralblatt 



Referierendes Organ 



der 



Association Internationale des Botanistes 

 für das Gesamtgebiet der Botanik. 



Herausgegeben unter der Leitung 

 des Präsidenten: des Vice- Präsiden f en : des Secretärs: 



Dr. D. H. Scott. Prof. Dr. Wm. Trelease. Dr. J. P. Lotsy. 



und der Redactions-Comntissions- Mitglieder : 



Prof. Dr. Wm. Trelease, Dr. C. Bonaventura, A. D. Cotton, 



Prof. Dr. G. Wehmer und Mag. C. Christensen. 



von zahlreichen Specialredacteuren in den verschiedenen Ländern. 



Dr. J. P. Lotsy, Chefredacteur. 



No. 10. 



Abonnement für das halbe Jahr 15 Mark 

 durch alle Buchhandlungen und Postanstalten. 



1918. 



Alle für die Redaction bestimmten Sendungen sind zu richten an: 

 Redaction des Botanischen Centralblattes, Haarlem (Holland), Spaarneiy. 



Battandier, J. A., Note sur quelques anomalies florales. 

 (Bull. Soc. Hist. nat. Afrique du Nord. VI. p. 31, 32. 1915.) 



L'auteur donne de courtes descriptions de fleurs doubles chez 

 Helianthemutn pergamacetim Pomel, Narcissus Tasetta, Papaver 

 hyhridurn, Silene colorata Poiret, Rmiunculus acris L. et d'un cas 

 remarquable de chloranthie ou phyllodie chez Cyclamen africannm. 



Jongmans. 



Bessey, C. E., The phylogenetic taxonomy of t'lowering 

 plants. (Ann. Missoury Bot. Garden. IL p. 109—164. 1 Fig. 1915.) 



Although it is still always impossible to speak of a complete 

 phylogeny of the angiosperms, the author tries to give a scheme 

 of the evolution of this group. In his introduction he enumerates the 

 generally accepted principles of Classification as they apply to the 

 flowering plants. The Anthophyta may be divided into two classes: 

 OppositifoUae {Dicotyledons) and Alternifoliae {Monocotyledons). 



The OppositifoUae are the first to emerge from the cycadean 

 phylum (considered as the primitive group, from which have sprung 

 both conifers and Anthophyta), appearing as the Ranalean complex. 



From this Ranalean type arise the Alteriiißorae as apocarpous 

 AlismataleSj and these soon merge into the syncarpous LHiales, 

 which are successively more and more modified in the Arales, 

 Pnlmales and Graniinales. From Liliales by a cotyloid modification 

 the mostly actinomorphic epigynous Iridales are derived, and from 

 these again the zygomorphic epigynous Ovchidales. 



The Ranales first give rise to five apopetalous, polycarpellate 

 Orders with gradually increasing syncarpy, namely Malvales, Gera- 



B(5tan. C«atralhlatt. Band 137. 1918. 10 



