76 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Lemoine, Mme. Paul — Repartition du Lithothamnion calcareum (Maerl) et 

 de ses varietes dans la region de Concarneau. (Distribution of L. calcareum 

 and its varieties in the region of Concarneau). 



[A concise and interesting BUmmarj of the paper by the same author, 

 published in the Ann. de l'lnstitul Oceanographique, i. 1910.] 



Bull. Mm. d'Hist. Nat. Paris (1909) No. 8, pp. 552-4. 

 Wir.iiE, N. — Mikal Heggelund Foslie. 



[A short biographical notice of the late M. H. Foslie, written in Norwegian.] 



Naturen, Dec. 1909, pp. 353-6. 

 Edwards, A. M. — Desmidieae came by Energenesis. 



[An extraordinary composition, asserting that the author has seen spontane- 

 ous generation of desmids, the phenomenon occurring on April 1.] 



Nuov. Notar. xxi. (1910 pp. 200-3. 



Mazza, A. — Saggio di Algologia Oceanica. (Marine algology.) 



[A continuation.] Nuov. Notar, xxi. (1910) pp. 169-99. 



Hardy, A. D. — Association of Alga and Fungus in Salmon- disease. 



[An account of a species of Myxonema and a fungus growing associated on 

 fish in fish-ponds at Kew, Melbourne. A list of alga? is appended, which 

 are either new for Victoria or are interesting in connexion with the fish 

 question.] Proc. Boy. Soc. Victoria, xxiii. (1910) pp. 27-32. 



Boyer, C. S. — Jelly-pores in the Diatomaceae. 



[A short note on a discussion held by the author on the observations of 

 other authors concerning these pores.] 



Proc. Acad. Nat. Sci. Philadelphia, lxii. (1910) p. 271. 



Fungi. 



(By A. Lorrain Smith, F.L.S.) 



Cladochytrium caespitis sp. n.* — Griffon and Maublanc noticed that 

 some young seedlings of rye grass became yellow and died off. They 

 found, in the decaying tissues, fine branching filaments which swelled at 

 intervals to form round or irregular vesicles, so that the cells became 

 filled with necklace-like structures. In time the vesicles became rounded 

 off and isolated, the fine filaments disappearing ; they then became 

 encysted with a colourless or yellowish membrane of varying dimensions, 

 on an average about 25/x in diameter ; germination was not observed. 

 In one instance zoosporangia were found, that had developed similarly 

 to the cysts. They were filled with minute zoospores possessing one 

 cilium. 



Study of Synchytrium-galls.t — A. (iuttenberg examined these 

 galls on Mermrialis, Anemone, and Adoxa, and found that the host-cells 

 had swollen enormously under the influence of the parasite. In these 

 cells the nucleus had left its normal position on the cell-wall and was 

 suspended on plasma threads in the centre of the cell. Near by lay the 

 cell of the parasite, and from it a fine canal-system penetrated the cell- 

 nucleus and abstracted nourishment for the parasite. 



Study of Mucorini.J — Boleslaw Namyslowski has isolated from soil 

 and from dung a number of species of Mucorini, which he has cultivated 



* Bull. Soc. Mycol., xxvi. (1910) pp. 317-21 (1 pi.) 



t Jahrb. Wiss. Bot., xlvi. (1909) pp. 453-77 (2 pis.). See also Zeitschr. Bot., i. 

 (1909) pp. 609-10. 



% Bull. Acad. Sci. Cracovie, Math. Nat. Kl. No. 6b (1910) pp. 477-520(1 pi. 

 and 2 figs.) 



