No. 2, June, 1921] MORPHOLOGY AND TAXONOMY, ALGAE 177 



1225. CosTANTiN, J. Travaux recents sur les Thallophytes. [Recent work on the Thallo- 

 phytes.] Ann. Sci. Nat. Bot. X, 1 : xxx-xxxvi. 1919.— The author calls attention to studies 

 on Laminarias, mentioning especially C. Sauvageau's contributions to knowledge of their 

 life cycle. Reproductive bodies borne along median line of blades are asexual (zoospores) 

 and are said to give rise on germination to minute filamentous sexual thalli which are dioe- 

 cious. In Sacchorhiza the female thallus is obliterated and the egg is the protoplasm of the 

 zoospore made ready for fertilization. Actual observation of fusion of gametes is not re- 

 ported. Sauvageau's cultural methods are briefly described. Economic possibilities of 

 marine agriculture are dwelt upon. — James P. Kelly. 



1226. Fischer, L. Tabellen zur Bestimmung eiaer Auswahl von Thallophyten und 

 Bryophyten. [Keys for the determination of a selected group of thallophytes and bryophytes.] 

 60 p. Bern, 191S. 



1227. FoRTi, AcHiLLE. Elenco preliminare della flora pelagica del seno di Quarto del 

 Mille presso Geneva. [Preliminary catalogue of the palagic flora of the Quarto dei Mille Bay, 

 nearGenoa.] LaNuova Notarisia 31 : 65-72. 1920.— The paper consists of a list of 235 species 

 of pelagic organisms, representing the groups Cystoflagellata (1), Dinoflagellata (Feridini- 

 ales) (123), Acontae (Bacillariales) (101), Silicoflagellata (3), Coccosphaerales (1), and 

 Chlorophyceae (6). — Marshall A. Howe. 



1228. Fritsch, F. E., and E. Stevens. Contributions to our knowledge of the freshwater 

 algae of Africa: 3. Freshwater algae (exclusive of diatoms) mainly from the Transkei Terri- 

 tories, Cape Colony. Trans. Roy. Soc. South Africa 9: 1-72. Fig. 1-29. 1921.— An anno- 

 tated list of algae collected in South Africa enumerating 146 species belonging to 63 genera, 

 including Isokontae, Heterokontae, Cyanophyceae, Florideae, and Flagellata. Six new 

 species, a new subspecies, and 13 new varieties are described. The new species are Entero- 

 morpha basiramosa, Closterium pegleri, C. pseudolibellula, Euastrum submontanum, E. sim- 

 pliciforme, and Spirogyra subreticulata. — E. N. Transeau. 



1229. Gard, Mederic. Biologic d'une nouvelle espece d'Euglene (Euglena lunosa nov. 

 spec). [Biology of a new species of Euglena (Euglena limosa nov. spec.).] Compt. Rend. 

 Acad. Sci. Paris 169: 1423-1425. 1919.— A brief description of the morphological character- 

 istics and behavior of a new species of Euglena, E. limosa, and a discussion of the work of 

 Rose Bracher [Ann. Bot. 33:93-108. 1919] on Euglena deses, Ehrenberg.— F. H. Young 



1230. Ghose, S. L. Campylonema lahorense, a new member of Scytonemaceae. New 

 Phytol. 19:35-39. Fig. 1-6. 1920.— A blue-green alga from Lahore, formerly referred by 

 the author to Tolypothrix arenophila W. and G. S. West, is here shown to be distinct and 

 is described under the name given. — I. F. Lewis. 



1231. Ghose, S. L. The Myxophyceae of Lahore. Jour. Indian Bot. 1:8-13. 1919.— 

 An annotated list of blue-green algae of Lahore, India. — E. N. Transeau. 



1232. Grove, W. B., B. Muriel Bristol, and Nellie Carter. The flagellates and algae 

 of the district around Birmingham. Jour. Botany 58: Suppl. 3. 1-55. 1920.— The extensive 

 list making up the bulk of this paper was compiled almost exclusively from records made by 

 the late G. S. West during the last 13 years of his life. The summary of species listed is as 

 follows: Flagellates, 33; Myxophyceae, 83; Peridineae, 6; Bacillarieae, 155; Chlorophyceae, 

 444; and Rhodophyceae, 6. A bibliography is appended.— if. M. Wiegand. 



1233. Hodgetts, William J. A new species of Spirogyra. Ann. Botany 34:519-524. 

 PI. 22, 5 fig. 1920. — A description of Spirogyra colligata is presented. The species is remark- 

 able in presenting a new form of cross walls between adjacent cells in the filaments. The 

 cross walls are plane but possess an extra layer which recalls the so-called H-shaped pieces 

 in the walls of Microspora. Conjugation may take place through the end walls as well as 

 by the usual methods known for other species of the genus. — E. N . Transeau. 



BOTANICAI, ABSTRACTS, VOL.. VIII, NO. 2 



