720 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Dus£n, P.— Beitrage zur Bryologie der Magellanslander, von Westpatagonien und 

 Siidchile. (Contributions to the bryology of the Magellan region from West 

 Patagonia ami South Chile.) 

 [Continuation. Dicranaoese.] 



Arluvf. Botanik, iv. No. 1 (1905) p. 45 (11 pis.). 



Gilbert, B. D. — The Advantage of frequent Visits to Moss localities. 

 [Notes on the species found in a small swamp near New York.] 



Bryoloijid, viii. (1905) pp. 93-4. 



UrsTAFSON, T. — Bidrag till Hokensasbygdens Mossflora. (Contribution to the 

 moss-flora of the Hiikensas district.) 

 [List of 79 hepatics and 255 mosses.] 



Arl-iv f. Botanilc, iv. No. 11 (1905) 32 pp. 



Holzinger, J. M.— Bryum Forsteri sp. n. 



[A Washington moss.] Bryologist, viii. (1905) p. 80. 



Levier, E. — Appunti di Briologia Italiana. (Contributions to the Italian moss- 

 flora.) 



[Alphabetical lists of new or rare mosses and hepatics with annotations.] 



Bull. Soc. Bot. Ital, 1905, pp. 145-58. 206-16. 



Lyon, H. L. — Polyembryony in Sphagnum. 



Bot. Gazette, xxix. (1905) pp. 365-6 (3 figs.). 



Moore, A. C. — Sporogenesis in Pallavicinia. 



Bot. Gazette, xl. (1905) pp. 81-96 (2 pis.). 



Mi ller, K. — Ueber die in Baden im Jahre 1904 gesammelten Lebermoose. (Hepa- 

 ticse gathered in Baden during the year 1904.) 



[List of 108 species with numerous localities, mostly in previously unsearched 

 districts in the north and south of Baden.] 



Beth. Bot. Centralbl, xviii. 2 (1905) pp. 323-46. 



Pearson, W. H. — A New Hepatic from Ireland. 



[Plagiochila killarniemis, a new species growing by the Tore Cascade, is 

 described.] Journ. of Bot, xliii. (1905) pp. 281-2 (1 pi.). 



Waknstorf, C. — Vier neue exotische Sphagna. (Four new exotic Sphagna.) 

 [Describes new species from Brazil, Porto Rico, and East Africa.] 



Allgem. Bot. Zeitschr., xi. (1905) pp. 97-101. 

 Williams, R. S. — Notes on Luzon Mosses. 



[Field notes on mosses observed near Manila.] 



Bryologist, viii. (1905) pp. 78-80. 



Thallophyta. 



Algse. 

 (By Mrs. E. S. Gepp.) 



Cultivation of Green Algae.* — A. Artari publishes in tabulated 

 form the results of his experiments as to the effect of concentrated food 

 solutions on the development of certain green algse. The species experi- 

 mented on were Sticho coccus bacillaris, the gonidia of Xanthoria parietina 

 and Scenedesmus caudatus. Stichococcus bacillaris flourished both in 

 very weak and in very strong nutritive solutions, but the relatively 

 strong solutions produced the best results. Sugar solutions affected the 

 shape of the cell according to the strength employed. Relatively strong 

 nutrition was also found most successful for increasing the growth of 

 the gonidia of Xanthoria parietina, while Scmedesmus caudatus preferred 

 the weaker solutions. The author proposes to publish further details on 

 this subject. 



* Jahrb. wiss. Bot.. xl. (1904) pp. 593-613 (2 figs, in text). 



