igii. Druce. — British Utriadariae. 121 



correct some of the statements made by Meister, and to 

 give additional characters by which this species (as he holds 

 it) is to be distinguished. 



JJ . ochrolenca, first discovered by Hartman in Sweden, 

 has been since found in Norway and France (Vosges) (to 

 this perhaps is to be referred Celakovsky's U. intermedia, 

 var. brevicornis from West Galicia), also in South Bohemia, 

 Brandenburg, the Rhine Palatinate and some other places 

 in North Germany. To these localities Gliick fortunately 

 added that of the Black Forest, where it occurs in the 

 absence of intermedia, thus practically proving that it is 

 not a hybrid. My query in the "List" was as to its 

 occurrence in Scotland, since the records made were 

 suggestive rather than positive. 



Dr. Gliick recognised as ochroleuca a specimen in my 

 herbarium which I gathered in Loch Mallachie in Easterness 

 in 1882. I have also one collected near Aviemore in 1869 

 on my first visit to Scotland. The gradual attenuation of 

 the leaf segments, and the presence of a few bladders on 

 the assimilating shoots, offer ready means of identifying the 

 plant in its usually barren state, as Dr. Gliick {Deutsch. 

 Bot. GeselL, xx, 141, 1902) shows. This leaf character 

 gives the plant a slightly more graceful habit. In dried 

 specimens it is essential to observe if the assimilating shoot 

 is not stuck down with an adhering subterranean shoot, or 

 if the utricles have not been separated from the proper 

 shoot and accidentally fastened to the green shoot. I have 

 seen ochroleuca from 88 Coninish Valley, 1888 ; 89 Loch of 

 Lowes (Hb. Hanbury) ; 96 Loch- Mallachie, Aviemore ; 107 

 and 112 (Beeby, 1890, Hb. Br. Mus.). Dr. Gliick also 

 named as ochroleuca my specimen collected in 1875, from 

 Kylemore, Galway. Trail refers to specimens from 72, 74, 

 98, 104, and 108. 



Another argument against ochroleuca being a hybrid is 

 the rarity of the flowering stage in the two supposed parents, 

 and although the book-characters are remarkably inter- 

 mediate, and as some botanists would say, " just what I 

 should suspect a hybrid of the two species would be," yet 

 really hybrids are not often such a complete half-way 



