850 
Fam. XXII. CRUCIFERAE. 
Arabis alpina L. 
As stated in my list (I. c. p.66) Trevelyan records it from the 
hills of Kunö, but as this island lately has been much investigated 
by Miss E. Taylor and Mr. R. Rasmussen without refinding the 
Arabis, I doubt the statement of Trevelyan. 
102. Arabis petraea (L.) Lam. 
+ Brassica campestris L. 
y+ 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. pratensis L. 
107. Cochlearia officinalis L., coll. 
As pointed out in my list (1. c. p. 67) the Cochlearias of the Feer- 
öes 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 Faeröes. 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, pl. 345, 346; cfr. Journ. 
of Botany, XXX, 1892, p. 225, pl. 326 A) with Færôese specimens 
grown in bare gravelly places in the hills, and I have found them 
quite like; but on the other hand 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. rupestris (R. Br.). 
109. D. incana L. 
+ Raphanus raphanistrum L. 
