38 REVUE BRYOLOGIQUE 



^{liiis Flolowii and Jimijermannia minula^ all of which were 

 found already in the south of the polar circle, and in the 

 arctic region by Hypnum scorpioidcs, trifarium, badiiim (at 

 times wdth fruits), Dicranum elongatum, palustre and Schm 

 deri (the 2 last mosses in this region at least more abun- 

 dant), Dissodon splachnoides, Gymnocijbe turfjida, Catoscopitini 

 nujrilum, Cinclidmm subrotundum and laUfoUum Lindberg, 

 Aneura pinguis, Jungermannia anomala, etc. One of the 

 above mentioned mosses, Cinclidium latifoliam, has been 

 described by Professor Lindberg (1) according to specimina, 

 carried home by Docent Sahlberg^ one of the zoological 

 members of the expedition. The beautiful moss is dioi- 

 cous, perhaps the largest species of this interesting genus 

 and nearest akin to C. styghtm; the leaves are very scattered 

 and convex with the limb revolute; the nerve disappears be- 

 neath a very short point. It occured in great abundance in 

 the large moors of which the islands in the mouth of the 

 Jenisei to the greatest part consists ; as the species is dioicous 

 the frnits were very rare. 



Leaving the moors, I wdllnow speak a little of the mosses 

 growing on mouldering truncs. There is a great abundance 

 of such truncs to be seen in the immense woods that clothe 

 the banks of the nether Jenisei. In the tundraregion they 

 also occur, although, of coarse, more sparingly. To this re- 

 gion theyhavebeencarricddownby the rivcrand by the inun- 

 dations they have been cost upon the banks. In the woods, 

 the rich vegetation in these situations principally consists 

 of Dicranum fuscescens and fragiUfolium^ Cynodonliwn \yah- 

 lenbergii, Hypnum unclnalum and SommerfeUii, Plagiolhecium 

 denticulalum and nitidum^ Brachytheclum salebrosum^ Teira- 

 phis peUucida, Lepidozia reptans and a great variety of forms 

 of Scapania and Jungennannia. The most common species of 

 the last genus w^re /. incisa, ventricosa and trichophylla, be- 

 sides which also some other very fine and partly new species 

 very commonly occurred. Dicranum monlanum, Mnium cas- 

 pidatum^ Radula complanaki; Hypnum ascendens, etc., were 

 to be found only in more southern parts; Jungcrman)vo at- 

 tenuati, on the contrary, more belonged to the north, and 

 hmgermannia julacea was the only moss which is to be 

 added on this locality in the tundraregion. 



Passing over to living truncs, you will find iheni to be 

 very poor in species, excepting when the stand within 

 reach of the inundations. In the last case, the truncs become 

 covered, often many feet high, with a stratum of clay, thus 

 affording a peculiar station, that is especially aflbcted by 

 some mosses, as for instance Amblystegium riparium, Pyloi- 



(1) See : Botaniska Notiser 1877, pag. 30. 



