170 Lichenes. — Bryophyten. — Floristik etc. 



{Aspicilia) Brumithaleri Stnr., L. {Aspicilia) microspora var. actinosto- 

 moides Stnr., L. allophaa var. amittens Stnr., Blastenia oleicola Stnr. 

 Hervorgehoben sei noch das Steiner die Sektion Protoblastenia 

 der Gattung Blaste/iia zur Gattung erhebt und dass er eine Gliede- 

 rung der Gruppe der Lecanora sübfusca (L.) in Vorschlag bringt. 



Zahlbruckner (Wien). 



Cornet, A., Contribution ä la flore bryologique de Bel- 

 gique. (Bull. Soc. roy. bot. Belgique. XL VII. 3. p. 291—296. 1910.) 



C'est la sixieme liste d'habitations nouvelles d'especes rares 

 donnee par l'auteur. Elle comprend des Mousses et Hepatiques. Parmi 

 les premieres, notons, corame nouvelles pour la Belgique: An- 

 dreaea Huntii Limpr., Bryum fallax Milde, Pohlia Rothii (Correns) 

 et Hypnum cuspidatum L. var. inundatutn Lamy; parmi les autres, 

 Lophosia badensis (Gott.) Schiffn. Henri Micheels. 



Müller, K., Rabenhorst, Kryptogamen Flora. XIV. p. 833— 



870. 1911. 



Das Heft enthält den Schluss der Diagnose von Harpanthus 

 und das Genus Geocalyx mit einem Anhang „Ueberblick über die 

 Bildung der Fruchtsäcke bei den Jungermannien". Es folgt die Gat- 

 tung Saccogyua, ein Verzeichniss der Abbildungen und ein Index, 

 womit dieser I. Band seinen Abschluss findet. Stephani. 



Adarason, R. 3., Note on the relationships of Primiila ela- 

 tior and P. vulgaris to Soil conditions. (Trans. Proc. bot. Soc. 

 Edinburgh. XXIV. 2. p. 84-86. 1910.) 



The distribution of these species was investigated in woods in 

 Cambridgeshire. P. elatior is confined to woods of ash-oak type 

 on Boulder Clay, a substratum varying considerably from place to 

 place as regards water-content and lime-content. This species demands 

 a soil vvith high water-content, especially in spring, and neverfalling 

 below 30 p. c, but not a saturated soil. This must be combined with 

 a moderate (c. 4 p. c.) but not excessive amount of lime. Where 

 either of these conditions is unfulfilled, P. elatior ceases to flourish 

 and P. vulgaris occurs alone. This latter species has a much wider 

 ränge occurring on soils with high or low water-content. and on 

 saturated soils as well as those which become fairly dry; it is also 

 less exacting as regards light and shade. P. elatior flowers abun- 

 dantly in woods recently coppiced, later when shade from the trees 

 is denser it flowers little. Where the two species occur in proximity 

 hybrids occur, and these seem te have a wider ränge of soil conditions 

 than P. elatior, but not so wide as P. vulgaris. W. G. Smith. 



Christy, IV!., On the abnormal fruiting of the Common 

 Elm in 1909. (Essex Naturalist. XVI. Parts III and IV. p. 43-81. 

 illus. 1910.) 



Mainly records from various parts of England to show that 

 the abundant fruiting of Ulinus was widespread. The foliage was 

 also noted as deficient in early summer, so that fruiting trees were 

 brown. The species of Elm is not dealt with, it is probably Ulrrnts 

 glabra. Seeds were also observed to germinate freely. In a postscript 



