850 



Fam. XXII. CRUCIFERAE. 



Arabis alpina L. 



As stated in my list (1. c. p. 66) Trevelyan records it from the 

 hills of Kuno, but as this island lately has been much investigated 

 by Miss E.Taylor and Mr. R. Rasmussen without refinding the 

 Arahis, I doubt the statement of Trevelyan. 



102. Arabis petraea (L.) Lam. 

 t Brassica campestris L. 



t B, napus L. 



t B. nigra (L.) Koch. 



103. Cakile maritima Scop., var. latifolia (Poir.) 



104. Capsella bursa pastoris (L.) Moench. 



105. Cardamine hirsuta L., both var. campestris Fr. and var. 

 silvatica (Lk.). 



106. C. ppatensis L. 



107. Cochlearia officinalis L., coll. 



As pointed out in my list (I. c. p. 67) the Cochlearias of the Fær- 

 oes are very varying, but I had not succeeded in discovering dis- 

 cernible limits. During 2 — 3 years I have had several Cochlearias 

 under cultivation in the Botanical Garden of Copenhagen and among 

 them some raised from seeds collected in the Færoes. The results were, 

 that many distinct forms occur, which keep their special characters 

 from generation to generation, but it seems very difficult, if possible, 

 to express these distinctions verbally. Consequently my opinion is, 

 that at present we are not able to distinguish the elementary spe- 

 cies of Cochlearia, but must retain the old collective name C. offici- 

 nalis. I do not doubt, that many forms will be segregated in fu- 

 ture, and I think the English and Scottish botanists are on the right 

 way, when separating C. alpina H. C. Watson, C. micacea Marshall 

 and C. groenlandica »L.« from the common C. officinalis »L.« 



I have compared authentic specimens of C. micacea Marshall 

 (see Journ. of Botany, vol. XXXII, 1894, p. 289, pi. 345, 346; cfr. Journ. 

 of Botany, XXX, 1892, p. 225, pi. 326 A) with Færoese specimens 

 grown in bare gravelly piaces in the hills, and I have found them 

 quite like; but on the other hånd there are specimens which do 

 not match any of the above mentioned »species« in their typical 

 shape, but are intermediate-looking. 



108. Draba hirta L., f. riipestris (R. Br.). 



109. D. incana L. 



t Raphanus raphanistrum L. 



