Bryophyten. — Floristik u. Systematik der Phanerogamen. 52 1 



sondern macht uns stets mit der Variabilität, mit biologischen Verhält- 

 nissen u. s. w. bekannt. Die Synonimik und Nomenclatur wird immer 

 kritisch behandelt. 



In der nächsten Serie wird die Formenreihe der Lophazia Mülleri 

 ausgegeben werden. Verf. ersucht Fachgenossen, ihm Material von 

 folgenden Arten zn senden: Lophozia atlantica, Binsteadii, decolorans, 

 elongata, guttulata, Kciurini, quadriloba, Schultzii, (= Jungermannia 

 Rutheana = Jung, lophocoleoides) zu senden. — Anmeldungen von 

 Mitarbeitern nimmt Herausgeber jederzeit entgegen. 



Matouschek (Reichenberg). 



Leveille et VANIOT, Carex de Coree. (Bull. Acad. intern, de 



Geogr. botan. XII. 1903. p. 599—600.) 



Liste de 30 especes et varietes de Carex recoltes en Coree, avec 

 indication de localites; toutes les especes mentionnees sont dejä 

 connues. C. Flahault. 



Lewis, F. J., Geographical distribution of Vegetation 



of the basins of the rivers Eden, Tees, Wear and 



Tyne. Part I. (The Geographical Journal. Vol. XXIII. 



No. 3. March 1904. p. 313—331. With 8 iigs. and one map.) 



The present survey Covers the source and part oi the drainage 



areas of the rivers E d e n , Tees, Wear, and SouthTyne and includes 



a large extent oi high-lying mooriand on the west of the Pennines. 



The north-east part is composed entirely of fell-country, carboniferous 



sandstones, shales and limestones, which is unenclosed md uncultivated 



and covered with rough mooriand gently sloping to the north-east; this 



country terminates in a number of steep exarpments, facing the Eden 



valley on the south-west. The middle and western part lies largely in 



the valley of the Eden (Permian and Triassic sandstones and shales) 



and iorms a broad strip of undulating country, most of which is now 



under cultivation. The south-west part is occupied by a series of 



limestone terraces (Crosby Ravonsworth feil). — Over the higher parts 



of the felis most of the ground is covered with a thick deposit of peat, 



resting mostly on glacial clay; this peat reaches its greatest development 



on the wet type of heather moor and on the Sphagnum bogs (as much 



as 40 it. in thickness) the steep western part of the felis being much 



freer from it. Bare limestone is often exposed for considerable distances. 



In the region of cultivation the area of pasture land far exceeds 



that of ploughed land, which is coniined to the valley of the Eden. No 



v.heat is grown in the area under consideration, oats being the chief 



crop and extending up toSOOor 1000 ft. The permanent pasture reaches 



its upper limic at 1200 ft. The only wooded district is the Eden valley 



with oak woods, extending up to 800 ft. ; these are intermingled with a 



"few subsidiary trees (Fraxüius excelsior L., Corylus Avellana L. etc.), 



whilst the dry soil is frequently covered with bracken and a large number 



of herbaceous plants. Small woods of mixed deciduous trees occur here 



and there in sheltered Valleys. 



In the subalpine region small woods of birch occur up to 1000 ieet, 

 whilst remains of extensive birch-woods, mixed with alder and poplar, 

 occur embedded in the peat up to2350feet. Small pine woods are found 

 up to 1300 feet. The altitude „to which trees ascend, is considerably 

 lower than in similar regions in Great Britain and may in part be 

 due to the prevalence of the „heim wind" at certain times of the year. 

 The juniper is scattered over the Carboniferous districts in the heather 

 area". The area occupied by pasture associations forms a fairly broad 

 fringe round the main heather areas and may be divided into natural 

 pasture (flora quite distinct from heather area) and grass heaths (general 

 flora belonging to the heather area, chiefly above 1000 ft). The chief grasses 

 in the former are Agrostls vulgaris With v Festuca ovina L., Sesleria 



