6 o8 Gluck. — The Species of Utricuiaria of Great Britain . 
touching water-plants. On these occasions I observed, not only that 
U. ochroleuca occurs in Great Britain, but also that in a certain part — 
namely, in Scotland — it is very widely distributed. 
The first clue which led me to U. ochrolettca in England was a small 
and poor example in the herbarium of Oxford University, originating from 
Loch Mallachi in Scotland. 1 I visited Loch Mallachi myself in the autumn 
of last year, and, in spite of the greatest pains, I was unable to find the 
spot ; nevertheless I found the plant a short distance away, in little pools 
at the road-side not far from a farm between Loch Mallachi and Boat of 
Garten, and later I discovered a few other places in Scotland and Ireland. 
In the following paper I should in the first instance like to communicate 
to my readers the most important points of the history of the discovery 
of U. ochroleuca ; in the second place, its morphological and biological 
characters will be dealt with in detail ; and, in the third place, our present 
knowledge of the geographical distribution of U. ochroleuca will be discussed. 
I. Historical. 
U. ochroleuca was recorded for the first time by Hartman 2 in the year 
1857 for Sweden. 
In 1886 U. ochroleuca was recorded or the Flora of North Germany 
by P. Ascherson, and since that time it has been found in the following 
North German provinces : Brandenburg, Pommern, Mecklenburg, Ober- 
lausitz, Schlesien. 
In 1893 Utricuiaria ochroleuca was recorded for South Germany by 
K. Goebel 3 (for the Bavarian Highlands), and in 190a I was myself able to 
add to this single place a few other South German stations belonging to the 
heights of the Black Forest. 4 
Besides this, U. ochroleuca is mentioned for Galicia by F. Kamienski; 5 
for Greenland by Joh. Abromeit. 6 For France it is noted for one place 
only, viz. for the Vosges Mountains ; the plant, originating from a pool 
near the Lac Longemer and collected by S. Perrin, is identical with the 
plant of the Black Forest, but as distinguished from this it has copious 
typical flowers. 7 
1 The Botanical Exchange Club (Report, 1910, p. 315) has made a communication on this 
point through G. Claridge Druce, Oxford. 
2 R. Hartman, De Svenska arterna af slsegtet Utricuiaria. Botaniska Notiser, 1857. 
3 K. Goebel, Systematische Gruppierung der deutschen Utricuiaria- Arten. Mitt, der Bayerischen 
Botan. Ges., No. 4, Miinchen, 1893. 
4 H. Gliick, Uber die systematische Stellung und geographische Verbreitung der Utricuiaria 
ochroleuca. Berichte der Deutschen Botan. Ges., 1902, vol. xx. 
5 F. Kamienski, Sur une espece nouvelle pour la flore du pays (Galicie). Bulletin de l’Academie 
des Sciences de Cracovie, Dec. 1899, p. 505. 
6 Compare Bibliotheca Botanica, Heft 42, Stuttgart, 1899, p. 141. 
7 The plant is to be found in the Herbarium normale of F. Schultz, No. 297 : ‘ Dans les mares 
qui avoisinent le Lac de Longemer (Vosges, France) S. Perrin, viii, 1868.’ 
