BOTANICAL GEOGRAPHY. 427 



Dividing line between the rivers of the North Sea and of the Baltic : 



Region extending from Kalanito to Suvajervi. 

 Pinus sylvestris ....... 341 m., 374 m. 



Setitla pubescens .... 493 m., 498 m., 520 m., 530 m. 



Sorbus Aucuparia . . . . . . . .474m. 



At Karesuando. 

 Pinus sylvestris ........ 410 m. 



A list of the Phanerogamous plants occurring at Karesuando, by Leesta- 

 dius, is inserted in the report of these travels. 



A report by Blytt on his botanical journey through the 

 valley of Valders in Norway, contains, for the most part, 

 merely copious lists of localities (Bot. Notiser, 1845, 

 Nr. 1-3). The author, however, in his account of the 

 calcareous vegetation of Torpe, adds some remarks upon 

 the influence of lime on the distribution of Norwegian 

 plants. 



Very few peculiarly calcareous plants are found there, and several species 

 which in other countries are confined to a calcareous soil, grow upon the gneiss- 

 formations of Norway. Blytt only enumerates the following Phanerogamia as 

 belonging to the chalk in Norway : Anemone ranunculoides, Trifolium monta- 

 mtrn*, Libanotis*, Monotropa, Stachys arvensis, Carduus acanthoides*, Ophrys 

 my odes*, Neoltia nidus avis, and Malaxis Loeselii ; those species only marked 

 with an * are, according to my knowledge, peculiar to calcareous soils in 

 other regions, nor are the Lichens and Mosses enumerated, so in every case. 

 Blytt then criticises Unger's well-known catalogue of lime-plants, and in so 

 doing, he separates the following species, which grow in Norway on the 

 gneiss-formation, and part of them on it only : Hepatica triloba, Corydalu 

 fabacea, Astragalus glycyphyttus, Dryas, Rubus saxatilis, Sorbus aria, Coto- 

 neaster vulgaris, Saxifraga oppositifolia, Asperula odorata, Pyrola rotundi- 

 folia, Arctostaphylos alpina, Fagus, Taxus, Convallaria majalis, verticillata, 

 Polygonatum, Calamogrostis sylvatica, and Brachypodium gracile. Grimmia 

 apocarpa.. Hypnum Halleri, Lecidea vesicularis and Candida, and Gyalecta 

 cupularis. 



Blytt points out similar differences between Norway and Tyrol, in regard 

 to those plants which, according to Unger, are more common on a calcareous 

 soil on the Alps than upon other substrata. 



W. P. Schimper has given a description of the Dovre- 

 fjeld, especially the Mosses found on it, several new species 

 even of which he has discovered on this soil, which has 

 been so frequently described (Ratisbon Flora, 1845, 

 pp. 113-28.) 



