No. 3, December, 1920] MORPHOLOGY AND TAXONOMY OF ALGAE 173 



1193. Cokeb, W. C. A parasitic blue-green alga. Jour. Elisha Mitchell Sci. 8oc. 35: 9. 

 1919.— See Bot, Absts. 5, Entry 2026. 



1194. Ducellier, F. Deux Desmidiacees nouvelles. [Two new Desmids.] Bull. Soc. 

 Bot. Geneve 11: 117—121. 8 fig. L919. Docidium undulatum Bail. var. b n. var. 

 and Cosmarium benediction n. sp. were found in Switzerland. -W. II. Emig. 



1195. Du Rietz, Einak. Studier bfver de skandinaviska Laminaria-arterna. [Studies of 

 the Scandinavian species of Laminaria.] [Swedish.] Bot. Notiser [Lund] 1920: 41-49. 1920. 

 — The author admits 6 species of Laminaria recorded for Scandinavia, belonging to two dis- 

 tinct groups. The first group contains only L. sacharina (L.) Lamour., which he dismisses 

 with the remark that "he has nothing of importance to communicate." Of the second group, 

 L. nigripes J. G. Agardh and L. gunneri Foslie have been found only on the northern coast of 

 Norway, the first only as thrown up on the beach and very doubtfully Scandinavian. The 

 second, the author had not had any chance to study. There were, therefore, only three left 

 to be extensively treated: 1. L. scoparia (Strom) Du Rietz, nov. comb. [L. hyperborea (Gun- 

 ner) Foslie; L. digitata (L.) Lamour.]; 2. L. digitata (Huds.) Edm. [L. flexicaidis LeJolis]; 

 and 3. L. cucullata (LeJolis) Foslie. — P. A. Rydberg. 



1196. F., H. [Rev. of: Gepp, A., E. S. Gepp, and Mme. Paul Lemoine. Marine algae. 

 (Melobesiae by Mme. Lemoine.) Botany, Part II. In British Antarctic ("Terra Nova") 

 Expedition, 1910. Nat. Hist. Report. P. 17-28. No date.] New Zealand Jour. Sci. Tech. 

 1: 251. July, 1918. — Records one new species, Melobesia Geppii Lemoine, which was collected 

 at Spirits Bay, North Cape. Of nine other seaweeds collected the specimens were so fragmen- 

 tary that they cannot be given specific rank until more and better material becomes available. 

 — C. S. Gager. 



1197. G., A. [Rev. of: Church, A. H. Thalassiophyta and the subaerial transmigration. 

 Botanical Memoirs, No. 3. Oxford University Press. 95 p. 1919.] Jour. Botany 58: 59- 

 61. 1920. 



1198. Gard, Mederic. Division chez Euglena limosa Gard. [The cell-division of Euglena 

 limosa Gard.] Compt. Rend. Acad. Sci. Paris 170: 291-292. 1920.— See Bot. Absts. 6, Entry 

 989. 



1199. Mangin, L. Sur les Chaetoceras du group Peruvianus Bgtw. [On the species of 

 Chaetoceras of the group Peruvianus Bgtw.] Bull. Mus. Hist. Nat. Paris 25: 305-310, 411-414. 

 1919. — The author compares critically the various species of long-horned Diatoms of this group 

 previously published and recognizes 5 species and 1 form which he groups in two series desig- 

 nated as convexicomes and concavicornes . A new name and a new combination are proposed 

 as follows: C. convexicornis (C. peruvianus Gran.) and C. concavicomis Mangin forma cur- 

 rens (C. currens Cleve). The several species are illustrated by line drawings. — E. B. Payson. 



1200. Penard. Mallomonas insignis spec, nova? Bull. Soc. Bot. Geneve 11: 122-128. 

 1 fig. 1919. — Many specimens of Mallomonas were obtained at all seasons of the year in 

 swamps. The plants are considered either a new species or a European form of the American 

 species M. pulcherrima. — IF. H. Emig. 



1201. Playfair, G. I. New ane rare freshwater algae. Proc. Linnean Soc. New South 

 Wales 43 : 497-543. PI. 54~5S, 11 fig. 1918. — These notes cover new and rare Australian forms, 

 66 of which are described and figured. — Eloise Gerry. 



1202. Taylor, Fred B. Diatoms. New genera and species. Trans. Amer. Microsc. 

 Soc. 38: 283-290. 1919. — The catalogues of diatoms and the books and monographs which 

 have recently appeared on the subject are briefly discussed. The suggestions of Cleve and 

 others for new genera are given. A list of 42 new genera with descriptions and citations is 

 given. — S. H. Essary. 



