298 



The Scottish Naturalist. 



viminalis L. ; S. cinerea L. ; S. nigricans Sm. and S. phylicifolia 

 L. (The absence of S. Caprea is curious.) Numerous hybrids are, 

 as might be expected, also to be found, many of them having 

 doubtless been produced on the island. These include S. decipiens 

 Hoffm. (triandra and fragilis) ; S. rubra Huds. (purpurea and 

 viminalis) in several forms, some being true rubra, others near 

 Forbyana Sm. ; S. sordida Kerner (purpurea and cinerea), 

 common and very variable. One very beautiful form I am 

 inclined to think may be a hybrid between S. rubra and 

 S. cinerea (i.e. purpurea and viminalis and cinerea). S. 

 Smithiana Willd. (viminalis and the Capreae) in two forms, 

 viz., sericans Tausch and ferruginea G. And. ; S. lutescens 

 Kerner (cinerea and aurita) ; S. strepida Schleich. (cinerea and 

 nigricans) and S. Wardiana (Leefe), B.W. (cinerea and phylicifolia). 

 One large tree of S. fragilis bears catkins which, though chiefly 

 male, have also a few female flowers mixed with the male. The 

 trees of S. fragilis all belong to my variety britcuinica. 



Pinus sylvestris L. ; Larix europsea D.C. and Abies excelsa 

 Poir. These have all been planted. 



Allium ursinum L. ; Scilla nutans Sm. ; Paris quadrifolia L. ; 

 and Ornithogalum umbellatum L. 



Elodea canadensis Mich. 



Juncus bufonius L. ; J. effusus L. ; J. supinus Mcench ; J. 

 lamprocarpus Ehrh. and J. acutiflorus Ehrh. ; Luzula maxima 

 D.C. ; L. campestris D.C. ; and L. multiflora Lej. 



Sparganium simplex Huds, on the wetter shingles, with 



Alisma Plantago L., and 



Triglochin palustre L. 



Eleocharis palustris Br. ; Scirpus setaceus L. and S. sylvaticus 

 L. ; Carex echinata Murray ; C. ovalis Good. ; C. Goodenowii J. 

 Gay j C. panicea L. ; C. flava L. ; and C. rostrata Stokes. 



Phalaris arundinacea L. ; Anthoxanthum odoratum L. j Alope- 

 curus geniculatus L. and A. pratensis L. ; Phleum pratense L. ; 

 Agrostis alba L. and A. vulgaris With. ; Aira caryophyllea L. ; 

 Deschampsia caespitosa Beauv. ; Holcus mollis L. and H. lanatus 

 L. ; Arrhenatherum avenaceum Beauv. ; Cynosurus cristatus L. ; 

 Koeleria cristata Pers. ; Melica nutans L. \ Dactylis glomerata L. ; 

 Poa annua L. ; P. nemoralis L. j P. pratensis L. and P. trivialis 

 L. ; Glyceria fluitans Br. ; Festuca ovina L. and F. elatior L. ; 



