ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 285 



strata at Kakovicza in Albania. The second species is Dermatol ithon 

 Lovisatoi, and comes also from Miocene strata at Isili in Sardinia. The 

 structure of both is described in detail. 



Marine Aigge of Japan.* — S. Narita publishes a list of twenty-one 

 marine algae of Japan with diagnoses descriptive of the structure of a 

 few new species and varieties. He adds a key to the Japanese species 

 of Ghondrus. 



Edible Japanese Seaweed.f — A. D. Cotton describes an edible 

 Japanese marine alga which is known in Japan as Tosaka-nori. As the 

 result of investigations by himself and Dr. Yendo, he draws up a descrip- 

 tion of it under the name of Eucheuma papulosa Cotton and Yendo, and 

 shows that it is identical with Meristotheca papulosa J. Ag. and Gally- 

 meiiiii papulosa Montagne. The external appearance is extremely 

 variable. The author gives the history of the plant, and records the 

 confusion which has arisen with regard to its identity. The present 

 description of its form and structure will prevent such confusion in the 

 future. 



Vegetation of Sargasso Sea. J — W. G-. Farlow discusses the vege- 

 tation of the Sargasso Sea and the various theories concerning it. As 

 an instance showing how far specimens can be transported by currents 

 without perceptible injury, he describes an interesting case of a mixture 

 of Gulf-weed with a species of Cysfoseira, collected by Prof. F. H. Storer 

 on a voyage from the Cape of Good Hope to New York. The Cyxtoseira 

 was entangled in the Sargassum, and the species proved difficult to 

 determine even to Sauvageau himself. In any case, the Cystostira must 

 have come from the south-eastern shore of Europe or from northern 

 Africa (including the Atlantic Islands) where the genus abounds. 

 The author gives as his opinion that we are not as yet warranted in 

 assuming that the floating Gulf-weed could not have been derived 

 originally from some fixed fruiting form. We do not know at present 

 from what species it might have been derived, but until the distribution 

 of the Sargassa on the eastern coast of America and the West Indies is 

 better known, and their characteristics and variations have been more 

 thoroughly studied, the question of the origin of the Gulf-weed seems, 

 to him to be still open. 



Fungi. 

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



Hypocrella and Aschersonia.§ — T. Petch publishes preliminary 

 notes on these two genera, both pyrenomycetous fungi parasitic on 

 insects. He has as far as possible secured the types of all known 

 forms, and he now gives the list of species with their synonymy. The 



* Journ. Bot., lii. (1914) pp. 324-27. 



t Kew Bulletin, 1914, pp. 219-22. 



t Proc. Amer. Philos. Boc. Philadelphia, liii. (1914) pp. 257-52. 



§ Ann. Roy. Bot. Gard. Peradeniya, v. (1914) pp. 521-37. 



June 16th, 1915 • x 



