BOTANICAL NOTES AND NEWS 253 



Matriearia discoidea, DC., in North Aberdeenshire. About 

 twelve years ago I found this plant growing on the seashore beside 

 the harbour of Rosehearty, on the Moray Firth coast of Aberdeen- 

 shire. Though rather common near the harbour, I did not observe 

 it elsewhere ; and, regarding it as a "casual," I omitted to record it. 

 During August of this year I have met with it again. At Boddam, 

 a little way south of Peterhead, it occurs on flat low ground on to 

 which boats are drawn up, much like the place where I first found 

 it, but it has not yet spread far from this centre. Near Rosehearty 

 and Pittulie it is now extremely abundant ; and it has spread along 

 the roads inland to the old castles of Pittulie and Pitsligo, and at 

 least nearly four miles westward, as far as Aberdour. It is especially 

 plentiful near farm-buildings, sometimes quite covering the ground, 

 almost to the exclusion of other vegetation. A native of eastern 

 Asia and western North America, it has for a number of years been 

 known as naturalised on the eastern coasts of the North Sea ; and 

 it has probably been brought by fishing craft to the Aberdeenshire 

 ports. It is now most thoroughly naturalised on the north coast of 

 Aberdeenshire. I am not aware of any previous record for Scotland. 

 I have seen it on waste ground and rubbish along the Thames at 

 Kew near London; and it is recorded ("Journ. Bot," 1900, pp. 

 354-355) as abundant around Falmouth Docks. JAMES W. H. 

 TRAIL. 



Scottish Sphagna. In Mr. Horrell's paper on ' European 

 Sphagnacese,' now appearing by instalments in the " Journal of 

 Botany," the following are noted as from localities in Scotland, the 

 name of the collector being added within brackets. Sphagnum 

 sitbnitens, Russ. and Warnst., var. pallescens, Warnst., Gallows Hill, 

 Cromarty (Ogih'ie- Grant); S. molle, Sulliv., var. tenermn, Braithw., 

 Dalfroo Bog, Kincardine (Sim) ; S. squarrosum, Pers., var. spectabik, 

 Russ., near Loch Garve, Ross-shire (Braithwaite) ; S. feres, Angstr., 

 var. imbricatiim, Warnst., Strachan, Kincardine (Sim}; S. Lindebergii, 

 Schimp., Ben Wyvis, Ross-shire (M 1 - Kinky), Unst, Shetland (Si in] ; 

 S. citspidatuin, Russ. and Warnst., var. phimosum, Nees and Hornsch., 

 Scotstown Moor, near Aberdeen (Sim) ; S. recurvum, Russ. and 

 Warnst, Loch Knock, Islay (Gilmour); var. mucronatum, Warnst., 

 Corriegills Head, Arran (Ley), Islay (Gilmour) ; S. balticum, 

 Russ. ( = S. cuspidatuin, var. brevifolium, Lindb., in Braithwaite's 

 " Sphagnaceae," p. 84), Scotland, on high moors ; S. compaction, DC., 

 var. imbricatum, Warnst., Dalfroo Bog, Kincardineshire (Sim), Glen 

 Dole, Clova (Miss Barton\ Moidart, Westerness (Macvicar), Avie- 

 more, Easterness (Macvicar). 



Scottish Desmids. In ' Notes on Freshwater Algae, II.,' by 

 W. West and G. S. West ("Journ. Bot," 1900, pp. 289-299), the 

 following changes are made in the 1 nomenclature of certain species 

 included in Roy and Bissett's papers which appeared in this Journal 



