Algae. — Fungi, Myxomyceten , Pathologie. 543 



either new or little known among the algologists of the world. 

 Propagative organs of Chondria crassicaiilis Harv. which the author 

 promised to illustrate in a certain nuniber of his "Illustrations of 

 the Mar. Algae of Japan" are here pictured. K. Okamura. 



Okamura, K., Some Chaetoceras and PeragalUa of Japan. (Bot. 

 Mag. Tokyo, Vol. XXI, W. 244. p. 89—106. PI. III— IV, 1907.) 



The author enumerates the following species of Chaetoceras and 

 PeragalUa found in the sea around Japan: C. atlanticum Cleve , C. 

 densiim Cleve, C. boreale Bail, C. coarctaticm Lander., C. criophiluin 

 Castr., C. periiviamim Btw., C. rostratum Lander., C. denticiüatuni 

 Lander., C. nanodenticulatiim sp. nov., C. Lorensianinn Arun., C. 

 teres Cleve?, C. compresstim Lander., C. didymum Ehr. v. genuina 

 Gran, C. didymum v. anglica (Grün.) Gran, C. constrictum Gran, C. 

 javanicum Cleve, C. Vanheurckii Gran?, C. affine Lander, C. Ralfsii 

 Cleve, C. paradoxum Cleve, C. distans Cleve, C.laeve'Lend. — Fortm., 

 C. ftirca Cleve v. macroceras Schröder, C. crinitum Schutt, C. secun- 

 dum Cleve, C. debile Cleve, and PeragalUa meridiana Schutt. 



He distinguishes Schröder's broader form of C. denticulatum 

 (Schröder's Beitr. z. Kenntn. d. Phytopl. warmer Meere, 1906, 

 p. 350 f. 146.) from the typical species by the form and size of cell 

 and foramen, length of hoop, as well as by the direction and length 

 of horn-roots, and establishes it as a new sp. under the name of 

 nano-denticiilatum. As to C. Ralfsii Cleve he doubts whether Cleve's 

 illustration of C. Ralfsii given in Diät, of Java, 1873, p. 10, PI. III, 

 fig. 15 is not C. affinis Lander, and is of opinion that Schröder's 

 figure given in that author's 1. c. p. 352, f. 16. is correct. Endocysts 

 of C. affine, C. distans, and C. compresswn are illustrated and a chai- 

 ned form of P. meridiana with chromatophores is described. He 

 finds Richelia intracellidaris as an ectoparasite on C. compresstim 

 Lander and makes remarks on the attachment of a Vaucheria on the 

 cell of C. coarctatum Lander. K. Okamura. 



Toni, A. de, Sopra alcune ..Polysiphoniä''' inedite o rare (N. 



Notarisia. Ser. XVIII. p. 16. luglio 1907.) 



Dans cette note l'auteur decrit et figure, d'apres les materiaux 



de son herbier, plusieurs especes inedites ou rares de Polysiphonia , 



dont 17 provenant de l'Adriatique et une des mers de la Tasmanie. 



R. Pampanini. 



Magnus, P., Beitrag zur morphologischen Unterscheidung 

 einiger Uromyces-Xrl^n der Papilionaceen. (Berichte d. deutschen 

 bot. Ges. XXV: p. 250-255. Mit Taf. IX. 1907.) 



Der Verfasser stellt zunächst fest, dass ein von ihmimEngadin 

 beobachteter Uromyces auf Vicia temiifolia, den er bisher zu Urom. 

 striatus Schrot, gezogen hatte, höchst wahrscheinlich identisch ist 

 mit Urom. Vicia Craccae Constant., und dass auch eine Uromyces- 

 form auf Lens esculenta zu derselben Species gehört, von welcher 

 Material aus der bairischen Oberpfalz und aus Ungarn vorlag. Er 

 vermutet, dass zu diesem Uromyces ein Aecidium auf Euphorbia 

 Cyparissias gehört. 



Es wird ferner festgestellt, dass ein anderer Uromyces divS Vicia 

 Cracca, der bisher zu Urom. Pisi (Pers.) gerechnet wurde, von dieser 



