80 MORPHOLOGY AND TAXONOMY, ALGAE [Bot. Absts., Vol. V, 



fication should thus combine: (1) the auxiliary cell standpoint of Schmitz, with (2) the 

 special feature of thallus-organization, and (3) adult cystocarpic-differentiation, more 

 clearly recognized as significant by the older algologists (Harvey). [See also Bot. Absts. 4, 

 Entry 1014.]— K. M. Wicgand. 



599. Coulter, J. M. Alaria. [Rev. of: Yendo, Kichisaburo. A monograph of the 

 genus Alaria. Jour. Coll. Sci. Imp. Univ. Tokyo, 43 1 : US p. 19 pi. 1919. (See Bot. Absts. 

 5, Entry 612.)] Bot. Gaz. 68: 151-152, 1919. 



600. Dtjcellier, F. Contribution a l'Etude de la flore desmidiologique de la Suisse. [A 

 contribution to the study of the Desmid flora of Switzerland.] Bull. Soc. Bot. Geneve 10: 85- 

 154. 8 pi., 134 fig. 1918. — The many species of Desmids found at five different stations are 

 enumerated with detailed notes and figures. Many of the species are new to Switzerland. — 

 W. H. Emig. 



601. Ducellier, F. Etude critique sur Euastrum ansatum Ralfs et queiques-unes de ses 

 varietes Helvetiques. [A critical study of Euastrum anasatum Ralfs and some of the Swiss 

 varieties.] Bull. Soc. Bot. Geneve 10: 35-46. 29 fig. 1918. — Euastrum ansatum Ralfs var. 

 simplex n. var., also the new varieties commune, didcltiforme, robustum, and rhomboidale, are 

 figured and described in detail. — W. II. Emig. 



602. Ducellier, F. Trois Cosmarium nouveaux. [Three new forms of Cosmarium.] 

 Bull. Soc. Bot. Geneve 10: 12-16. 3 fig. 1918. —The three new forms of Cosmarium described 

 and figured include: (1) C. obliquum Nordst. form minutissima n. form., the smallest known 

 form of this species; C. crassangulatum Borge, var. Champesianum n. var. differs from the 

 species in size and the papillose nature of the cell wall; and C. Hornavanense (Schmidle) 

 Gutwinski form Helvetica n. form. — W. H. Emig. 



603. Ghose, S. L. A new species of Uronema from India. Ann. Botany 34: 95-98. 15 

 fig. 1920. — Uronema indicum from Lahore, India, is described, bringing the number of species 

 in this genus up to four.— E. N. Transeau. 



604. Groves, James. Sex-terms for plants. Jour. Botany 58: 55-56. 1920. — See Bot. 

 Absts. 5, Entry 560. 



605. Hodgetts, William J. Roya anglica G. S. West. A new Desmid; with an emended 

 description of the genus Roya. Jour. Botany 58: 65-69. 1920. — The author has compiled the 

 account of this new species from descriptions, notes and drawings by G. S. West. The form 

 of the vegetative cell is cylindrical or subcylindrical, unconstricted and very slightly tapering 

 toward each end where it is subtruncate. The zygospore is globose with a hyaline smooth 

 wall. The chief distinctions on which Roya can be retained as a genus are: (1) the simple 

 structureless nature of the wall; and (2) the delay in the division of the chloroplast until 

 the cell has reached maturity. — K. M. Wicgand. 



606. Howe, Marshall A. Observations on monosporangial discs in the genus Liagora. 

 Bull. Torrey Bot. Club. 47: 1-S. PI. 1, fig. 25-29. 1920.— The genus Liagora of the marine 

 red algae of the family Nemalionaceae is made up of species mostly dioecious, some being 

 monoecious. Some species often have small flat orbicular discs of a deep red color and bear- 

 ing on their distal surface a few sporangia the contents of which remain undivided. The lack 

 of any obvious genetic connection between these and the Liagora makes them appear to be 

 independent of it. They probably arise from gonidia, gemmae, or aplanospores which come 

 from terminal or subtcrminal cells of the assimilatory filaments of the Liagora. — P. A. Mum. 



607. Lucas, A. H. S. Notes on Australian Marine Algae, II. Description of four new 

 species. Proc. Linnean Soc. New South Wales 44: 174-179. PL 6. 1919.— Laurencia infes- 

 tans is described and figured and Falkenbcrgia olcns, Polysiphonia zostericola and Tricho- 

 desmium scoboideurn are discussed in detail. — Eloise Gerry. 



