626 SUMMARY OF CURRENT RESEARCHES RELATING TO 



Lindau, G., & A. Zahlbeuckner — Lichenes von Madagascar, Mauritius, 

 und dem Comoren. 



[Determined by Lindau, with descriptions of new species by A. Zahl- 

 bruckner.] 



Voeltzkow, Reise Ostafrika, 1903-5, iii. (Stuttgart, 1908) 14 pp. (1 (pi). 

 See also Hedivigia, Beibl., xlviii. (1909) p. 166. 



Pitard, J., & Bouly de Lesdain — Lichens recoltes pendant la Session de 

 la Societe botanique de France a Gavarnie. (Lichens collected during the 

 meeting of the Botanical Society at Gavarnie.) 

 [Notes are given as to locality and altitude.] 



Bull. Soc. Bot. France, vii. (1907; pp. cxlv-viii. 



Rave, P. — TJntersuchung einiger Flechten aus der Gattung Pseudevernia im 

 bezug auf ihre Stoffwechselprodukte. (Research on Pseudevernia species in 

 connection with vegetable products.) 



Inaug. Diss., Boma. Leipzig : R. Noske (1908) 51 pp. (2 pis.). 



See also Ann. My col., vii. (1909) p. 311. 



Schiffner, Viktor — Die Mitzpflanzen unter den Flechten. (Useful plants 

 among lichens.) 



[An account of those used for food, medicine, and in the arts.] 



Naturwiss. Wochensclir., viii. (1909) No. 5, pp. 65-72 (figs.). 

 See also Hedivigia, Beibl., xlviii. (1909) p. 166. 



Wilson, A., & J. A. Wheldon — Cladonia luteoalba sp. n. 



[Distinguished by the sulphurous under-surface of the thallus and the scarlet 

 apothecia.] Trans. Liverpool Bot. Soc, i. (1909) p. 7. 



See also Journ. Bot., xlviii. (1909) p. 324. 



Zahlbruckner, A. — Materialen zu einer Flechtenflora Braziliens. (Materials 

 for a lichen flora of Brazil.) 



[The list includes one new species.] 



Bol. Mus. Goeldi, v. (1909) pp. 258-61. 



Zopp, W. — Zur Kenntnis der Flechtenstoffe. (Knowledge of lichen products.) 



[The genera Peltigera, Nephroma, and Solorina were examined, and new 

 products were discovered.] 



Licbig's Ann. Chemie, ccclxiv. (1909) pp. 273-313. 

 See also Ann. Mycol., vii. (1909) p. 312. 



Mycetozoa. 



(By A. Lorrain Smith.) 



Plasmodiophoraceae and Phytomyxinese.* — Rene Maire and Adrien 

 Tison have made a study of Sorosphsera Veronicse, Plasmodiophora 

 Brassicse, and of a series of organisms included in the Phytomyxineas ; 

 the latter class, they conclude, is a heterogeneous group, and the name 

 ought to disappear. They find that Sorospltsera Veronicse is not a fila- 

 mentous fungus, but a Plasmodiophora ; they compare its development 

 with that of P. Brassicse, and find in both a schizogonic and a sporogonic 

 phase, in which the nuclear divisions . present characteristic differences, 

 which are carefully followed and figured. Spores are formed without any 

 conjugation. Finally, they conclude that the Plasmodiophoraceas are a 

 distinct group between the Sporozoaires and the Myxomycetes. The 

 authors give notes on the other organisms formerly classified as Phyto- 

 myxineaj. 



* Ann. My col. , vii. (1909) pp. 226-53 (3 pis.). 



