122 The hish Naturalist. July, 



house, while I am told that the flowers of ochrolcuca have 

 quite a different appearance from those of intermedia ^ ; 

 nor although U . vulgaris and U. major grow together and 

 flower freely, has any hybrid yet been observed between 

 these two allied species, nor indeed has Focke described one 

 in the genus. 



I may add that although ochrolcuca appears to be the 

 boreal or alpine species, yet it prefers open pools in sunny 

 places, and in Baden grows in somewhat deep water (i 

 metre), and that Gliick places much stress on the foliage 

 characters as a means for specific distinction. 



5. U. MINOR, L., has a census number of 71 (2), which 

 is probably too high, since U. Brcviii and small barren 

 states of U. via jar have been confused with it. The latter 

 may be easily detected since minor has no bristly hairs on 

 the leaf-segments. Barren states of Bremii however with 

 our present knowledge cannot be safely separated. U. 

 minor is reported from West Cornwall to the Orkneys, and 

 in Scotland ascends to 2,250 feet {A.N.H.S. 122, 1907), 

 and it also occurs in Guernsey. 



6. U. Bremii, Heer. This has long been suspected as 

 British ; indeed Mr. F. M. Webb {Journ. Bot. 142, 1876) 

 recorded it on faith of a specimen (in Herb. Kew.) gathered 

 by Jas. B. Brechan in the Moss of Inshoch, Nairn. Mr. 

 Webb also suggests that the flowerless examples from the 

 Isle of Wight (Dr. Bromficld), Titchfield Common, Hants 

 (also Bromfield in Hb. Kew) (see " Fl. Hants," 329) should 

 be looked to. Mr. F. N. Williams (" Prod." 349) 

 unhesitatingly refers all these with the plant from Gordon 

 Bog, Berwick, and from the Loch of Spynie, Elgin (Hb. 

 Winch) to Bremii, although he says of the Inshoch plant 

 " the flowers are not recognisable," while the others are all, 

 I believe, barren. But Dr. Gliick tells me one cannot on 

 our present knowledge trust to the leaf-characters to 

 distinguish the two species, although the differences may 

 be suggestive. Fortunately, however, he was able to find 



' Professor Trail {A.N.H.S.) has likewise drawn attention to the 

 probable occurrence in Scotland of ochrolcuca, and a paper on the British 

 Utriculariae, by the Rev. E. F. Linton, appeared in Trans. Bot. Soc. 

 Edinb. 



