100 TAXONOMY OF VASCULAK PLANTS [Box. Absts., Vol. VIII, 



682. Trtjffaut, G., et N. Bezssonoff. fitude comparee sur la microflore et la teneur en 

 azote des terres partiellement sterilisees par le sulfur de calcium. [A comparative study of the 

 microorganisms and the nitrogen content of soils partially sterilized by CaS.] Compt. Rend. 

 Acad. Sci. Paris 171: 268-271. 1920. — Soils treated with CaS are found to contain much ni- 

 trogen and also Clostridium pastorianum and the principal ammonifiers of the soil. When 

 CaS is used in amounts of 150 kg. per hectare in the field the soil is not found to be low in 

 nitrogen. — C. H. Farr. 



TAXONOMY OF VASCULAR PLANTS 



J. M. Greenman, Editor 

 E. B. Patson, Assistant Editor 



(See also in this issue Entries 146, 208, 229, 232, 377, 433) 



GENERAL 



683. Anonymous. [Rev. of: Hitchcock, A. S., and P. C. Standlet. Flora of the Dis- 

 trict of Columbia. Contrib. U. S. Nation. Herb. 21: 1-329. 42 pi. 1919.] Nature 105: 242. 

 1920. 



684. Anonymous. [Rev. of: Schoolbred, W. A. The flora of Chepstow, x + 140 p. 

 Taylor & Francis: London, 1920.] Jour. Botany 58: 178-180. 1920. 



685. Anonymous. [Rev. of: Stone, Wilmer [WitmerJ. The use and abuse of the genus. 

 Science 51 : 427-428. 1920.] Jour. Botany 58: 196-197. 1920. 



« 



686. Bennett, Arthur. [Rev. of : Lindman, C. A. M. Svensk Fanerogamflora. viii + 

 639 p., 300 illus. P. A. Norstedt & Soners: Stockholm, 1918.] Jour. Botany 58: 153-156. 1920. 

 —See Bot. Absts. 8, Entry 727. 



687. Britton, Nathaniel Lord. Flora of Bermuda (Illustrated). 8 vo., 585 p., 1 pi. 

 {colored), 619 fig. Charles Scribner's Sons: New York, 1918. — The present comprehensive 

 work includes the four great phyla of the vegetable kingdom. The Spermatophyta and 

 Pteridophyta have been elaborated by the author. The chapters on the lower groups have 

 been contributed by specialists, as follows: Musci by Elizabeth G. Britton, Hepaticae by 

 Alexander W. Evans, Lichenes by Lincoln W. Riddle, Fungi by Fred J. Seaver, and the 

 Algae by Marshall A. Howe. In the case of the Spermatophyta, Pteridophyta, and Bryo- 

 phyta keys are given which lead to the orders, families, and genera; and under the larger 

 genera keys are also given to /he species. Ample descriptions accompany each category, 

 and a limited synonymy is cited. Text-figures well illustrate distinctive species of the more 

 important genera. Neither keys nor illustrations are given for the Thallophyta. No new 

 species, new combinations, nor new names of the higher plants are published in the present 

 volume. The following species of algae are new to science: Boddlea struveoides Howe, Dasya 

 Collinsiana Howe, Callithamnion Herveyi Howe, Seirospora purpurea Howe, Ceramium 

 leptozonum Howe, and Nemastoma gelatinosum Howe. The author adds a chapter on "Bibli- 

 ography," and one on the "Principal botanical collections made in Bermuda." — /. M. 

 Greenman. 



688. EwART, A. J. Contributions to the flora of Australia, No. 27. Proc. Roy. Soc. Vic- 

 toria N.S., 31:367-378. PI. 18. 1919. — In connection with work on names of Victorian 

 plants questions arose as to priority and especially as to whether the plants were really 

 native. The decisions and references to the evidence are given for about fifty cases. Osten- 

 feld's revision of the annual species of Triglochin and a key based on his, but including the 

 recognized Australian species, both annuals and perennials, is given. — Some measurements 

 of girth growth in one tree of Ulmus campestris L. are appended. The girth did not increase 



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