904 



as m a n y as 10 o f t h e 21 a n n u a 1 species have t h e i r home 

 in the culture-formations , 4 in the halophile formations (sand- 

 strand formation), and 5 are parasites (all belonging to the Rhin- 

 antheæ). Of the remaining 2 species, one is a water-plant, so that 

 there remains only one single annual species — Koenigia 



Kig. 171. Perennial specimens of CochlearUi officinalis from a wet rock-ledge 



at Trangisvaag on Sydero, 9th May 1895. 



/. Stem-rudiments from tlie first period of flovvering, // from the second period, ///. stem witli flowering 



scapes of the third period. i. long internodes. a. specimen at least 4 years old, probably 5 years. 



b. specimen at least 3 years old, probably 4 years. 



islandica — as an inhabitant ofthe nat u ral land- vegetation 

 of the Færoese interior (the parasite Rhinantheæ of course ex- 

 cepted). 



The annual species confined to the cnltivated soil are weeds 

 in the fieids and gardens, along roadsides and round houses, and 

 it is open to suppose that they owe their existence on the Færoes 

 to mankind, but as they are so common I have included them as 

 quite naturalized species. 



We are therefore justilied in describing the F'æroese vegetation 

 as relatively deficient in annual herbs. The reason for Ibis may be 

 traced, as suggested above, to the insular climate and the occurrence 



