520 SUMMARY OF CURRENT RESEARCHES RELATING TO 



a remoter degree in Cat ill aria, the latter crustaceous, the former warted, 

 squamulose, or somewhat shrubby. 



Hue, Abbe— Lichens. 



[Notes on lichens collected at Tangiers.] 



Arch. Soc. Linn. Bord., lxiii. (1900) 4 pp. 

 See also Bull. Soc. Bot. France, ix. (1909) p. 641. 



Hulting, T. — Lichenes nonnulli Scandinavise. (Some lichens found in Scandi- 

 navia.) Bot. Not., 1910, pp. 303-6. 



See also Bot. Centralbl., cxvi. (1911) p. 570. 



Malme, G. 0. — Parmelia pertusa funnen in Stidermanland. 



[Parmelia, pertusa found in Sodermanland on Almis glutinosa, hitherto 

 only found there on rocks.] 



Svensk. Bot. Tidskr., iv. (1910) pp. 92-6. 

 See also Bot. Centralbl, cxvi. (1911) p. 570. 



Maheu, J. — Notes relatives a la cryptogamie de l'Espagne. Les Lichens de 

 Montserrat. (Notes on the Cryptogams of Spain. Lichens of Montserrat.) 



[Descriptions of seventy-seven species collected by the writer, some of them 

 new species.] 



Bull. Soc. Bot. France, ix. (1909) pp. 334-43 and 389-97 (3 figs.). 



Navas, L. — Sinopsis de los liquenos de las islas de Madeira. (Synopsis of 

 lichens of the Island of Madeira.) 



[A beginning is made of a synopsis of the lichens found at Madeira.] 



Brot. ser. Bot., ix. 2 (1910). 

 See also Bot. Centralbl. cxvi. (1911) p. 112 



Mycetozoa. 



(By A. Lorbain Smith.) 



Streaming of Plasmodia.* — V. Vouk publishes observations on the 

 rhythmic movements of protoplasm in the plasmodia of Myxomycetes. 

 There is a regular progression and retrogression, the former of longer 

 duration than the latter ; also the rhythm is constant for a given species, 

 though only in the head streams ; the side streams are subject to constant 

 change. Should there be mechanical disturbance of the plasmodium, 

 the effect is at once felt in the lowering or raising of the rate of 

 movement. 



Notes on Myxomycetes.f — C. Engelke records an unusual form of 

 Fuligo varians which he found on mosses and dried leaves ; it was 

 divided up into minute separate plasmodia and tethalia which were dark 

 green in colour. 



Engelke also gives a list of species found near Hanover. He records 

 6G species, some of them of great interest. He gives careful notes of 

 locality and time of year. 



Sorosphaera.J — E. J. Schwartz has discovered another species of this 

 genus parasitic on the roots of Poa annua and other grasses. The 



* Anz. k. Akad. Wiss. Wien, xx. (1910) pp. 363-4. See also Bot. Centralbl., 

 cxvi. (1911) p. 292. 



t Natur. Ges. Hannover, Bot. Abt. (1910) pp. 14-18. See also Bot. Centralbl., 

 cxiv. (1911) pp. 441-2. % Ann. Bot., xxv. (1911) p. 270. 



