Gluck— The Species of Utricularia of Great Britain. 615 
sequence of the cold stations, partly the strong vegetative propagation 
with winter-buds, which suppresses the flowering region in consequence of 
correlation. 
The only one station where I found U. ochroleuca, , and, indeed, with 
plenty of flowers, is situated in Holland in the so-called ‘ Konigsveen 
not very far from Nymwegen. Mr. H. Hoppner, who has occupied himself 
for many years with the Flora of the Lower Rhine, had the kindness to 
show me the above-mentioned locality. The following description only 
refers to the place in Holland. 
At the beginning of August we both found U. ochroleuca flowering 
in some ditches of standing and shallow water in which, U. ochroleuca 
excepted, U. neglecta and U. minor are copiously to be found with 
flowers. The flowering stems have a height of 10-17J cm. (PI. XLVII, 
Fig. 1). They produce 2-3 small and sterile scales ; at the top stalked 
flowers emerge from the axil of similar scales, which are very similar to 
those of U. viter media in size and yellow colour (PI. XLVII I, Figs. 9-12). 
The calyx is two-lipped ; the corolla also differentiated into upper lip, lower 
lip, palate, and spur. The upper lip is ovate and the top obtuse and a little 
scalloped (height 6*5-7 mm. ; width 6-7-8 mm.). The lower lip is rounded, 
sometimes flat and a little undulated ; sometimes the two flank edges are 
slightly turned down. It is 7-9 mm. long and 12-13 mm. broad when 
extended in one plane. The palate is globose, depressed, and shorter than 
the upper lip ; it is furnished with several brownish-red parallel stripes. The 
spur is conical, about half as long as the lower lip, and almost vertical to the 
latter ; it is about 4-5 mm. long, and tapering towards the top. Fruits 
are not known to me up till now. 
The flowers of U. intermedia (PI. XLVIII, Figs. 13-15) are similar to 
those of U. ochroleuca , but are easily to be distinguished ; they are, on 
the average, larger than those of U. ochroleuca . The lower lip is longer in 
proportion to the palate, which is a little scalloped and bears some dark- 
brown and irregular stripes. The best distinguishing mark is with reference 
to the spur : it is narrow, cylindrical, and runs parallel to the lower lip ; it 
is sometimes nearly of the same length as the lower lip, sometimes shorter 
than the latter. The spur of U . ochroleuca , on the contrary, is more 
conical, about half as long as the lower lip, and nearly vertical to the latter 
(compare Fig. 9 with Fig. 13, and Fig. 12 with Fig. 15). 
‘ Rhizoids * occur also here, but I could not find more than one on the 
base of the flowering stem (PI. XLVII, Figs. 6-8). They can be isolated or 
exist together with an underground shoot (as in Fig. 6), arising from the 
base. In many examples the ‘ rhizoids ’ seem to be absent, but they existed 
originally and were later metamorphosed into underground shoots (compare 
the underground shoot S 1 in Fig. 1, PL XLVII). The ‘rhizoids’ may have 
a length of 5-8*5 cm. and bear several (up to seventeen) small lateral 
