Jan. 1910.] BOTANICAL SOCIETY OF EDINBURGH 61 
on this, and seem to consider the plant named neglecta, v. 
macroptera of Hacker from Wesloe in Lubeck to rather 
belong to U. Bremii, Heer., and formerly Briickner! seems 
to have referred it to intermedia. 
No. 3. U. intermedia, Dreves and Hayne in Schrader, 
“J. Bot.,” ii. 18, t. 5 (1800). a (typica) Grafiana, Koch in 
“Flora,” 1847, p. 265. 8 Kochiana, Asch. and Graeb., “ FI. 
N. Flachlandes,” 1899, 651. 
U. media, Schumacker, “Enum. Saell.”’ 1/9/1801.—This 
again varies considerably, and we are far from knowing 
the life-histories of these very interesting aquatics (all our 
Species are aquatics). Dr. Williams gives an interesting 
means of distinguishing this “when pulling it out of the 
water, is to notice the cross-section of one of the shoots 
which is not angular as in all the other European forms, 
but reniform.” Occurs in twenty-nine Scottish counties, 
eleven English, and twenty-two Ivish. 
No. 4. U. intermedia x minor, Neuman in “ Bot. Notiser,” 
65, 1908. U. ochrolewea, Hartmn. l.c., 35, 1857. JU. 
brevicornis, Celak, “ Oest. Bot. Zeit.,”’ 253, 1886. U. ochro- 
leuca, f. microceras, J. Strandmark ! l.c., p. 66. 
U. intermedia, sub-sp. ochroleuca, Lange, “ Hand. Danske 
FL,” 524, 1887.—This was formerly supposed to be confined 
to Sweden, but is now known to occur in Bohemia, 
Germany, Tyrol, 8S. Norway, Finland, and nine provinces of 
Sweden. In 1903, I reported it for Scotland, based on 
specimens gathered at Broadford, Skye, by Mr. Symers 
M. Maevicar, July 1895. Others probably to be so referred 
are from: W. Sutherland, E. S. Marshall, 14/8/1887; 
Moidart, Argyll, July 1893; Dumfries, Loch Ur, J. Fing- 
land, 1887 ; Wigtown, Capenoch Moss, J. M‘Andrew. Since 
then I think specimens from S. Ebudes, Colonsay, Loch 
Fad, M‘Neill, may belong here. 
Of course as reputed hybrids they vary considerably ; the 
Dumfries specimens represent a slender and delicate form, 
the Wigtown probably swb-intermedia. Mr. S. Macvicar 
kindly sent me numerous specimens from Moidart, and both 
he and I were greatly puzzled where to place them. One 
would hardly suppose that a double hybrid was distinguish- 
1 M. Detharding’s “Consp. Fl. Megalop.” (1828), p. 5. 
2 “Ann. Scot. Nat. Hist.,” pp. 123, 250. 
TRANS. BOT. SOC, EDIN. VOL. XXIV, 5 
