246 



EuG. Warming. 



treatise "Das Pflanzenleben der Alpen" C. Schröter (pp. 

 569 — 584) has given an account (accompanied by several 

 figures) of plants with a pulvinate habit, and on p. 579 he 

 has figured a cushion of Alsine (Miniiartia) sedoides; he 



Fig. 7. Minuartia Rossii. 



(Dragon Point ; 21. 7. 1916; Thorild Wulff). А cushion seen from above. 



At the bottom the primary root is seen to protrude. 



describes it as "halbkugelige Polster vom kahlem Azorella- 

 Typus mit völlig glatter Oberfläche" . . . "Die Früchtchen 

 sind in das Polster eingesenkt," etc. The species "gehört zu 

 den letzten Pionieren der Vegetation." 



The Arctic cushions may be fairly flattened and carpet- 



