FERNS AND THEIR ALLIES. 



THIS list is based, as to arrangement and nomenclature, on Sir J. D. 

 Hooker's Students' Flora of the British Islands. Of the 19 genera and sub- 

 genera in that work, there are representatives of 17 in the Clyde area 

 Adiantum and Gymnogramme only being absent ; while of the 48 species 

 and sub-species, 40 have been recorded : Capillus Veneris, Asplenium 

 germanicum, A. septentrionale, Woodsia Ilvensis, Cystopteris alpina, 

 Nephrodium Thelypteris, Gyrnnograrame leptophylla, and Ophioglossum 

 Lusitanicum being the absentees. The distribution of the genera and 

 sub-genera, species and sub-species, and varieties, as at present recorded, 

 is as follows : Section A, 6 genera and sub-genera, 8 species and sub-species, 

 and 5 varieties ; B, 17 genera, 26 species, and 10 varieties ; C, 14, 20, and 5 ; 

 D-I, 13, 18, ; E-I, 17, 29, 26 ; F, 17, 31, 14 ; G, 16, 25, 4 ; H, 8, 12, 2 ; 

 K, 14, 21, 4 ; and L-M, 13, 20, 6. 



The only records in Scotland of Trichomanes radicans, Asplenium lanceo- 

 latum, Nephrodium cristatum, and N. rigidum are for the Clyde area, while 

 there are several new and striking, and a considerable number of rare, 

 varieties of Nephrodium dilatatum and of Athyrium Filix-foemina peculiar 

 to it. Hymenophyllum tunbridgense is recorded for 4, and H. unilaterale, 

 for 8 sections ; while Woodsia hyperborea, Cystopteris montana, Aspidium 

 lonchitis, and Ceterach officinarum (now rare in Scotland) are recorded. A 

 few, only, of the sections have been thoroughly examined even common 

 species having no record in fully half the number. It is to be hoped that 

 more attention will be devoted in future to those sections which have been 

 hitherto comparatively neglected. 



Thanks are due to Professor G. F. Scott Elliot for access to the 

 Herbaria in the West of Scotland Technical College, and other records ; 

 to Mrs. G. J. Combe, Glasgow, and Messrs. A. Laing, Troon, and 

 T. Wise, Hamilton, for access to private collections ; and to Messrs. R. 

 Kidston, F.R.S.E., Stirling ; D. A. Boyd, West Kilbride ; the Rev. D. Lands- 

 borough, Kilmarnock ; L. M'lnnes, Campbeltown ; J. R. Lee, Glasgow ; and 

 P. Ewing, Uddingston ; and others for information and assistance in 

 drawing up the list. 



ORDER I. FILICES (FERNS). 



/. Hymenophi/lleae. 



1 Hymenophyllum, Km. H. tunbridgense, Sm. B E & I F G. 

 H. unilaterale, Willd. A B C D & I E & I F G L & M. 



2 Trichomanes, L. T. radicans, L. E & I, Corrie, G. J. Combe, 1863 ! 



nr. Mauchrie Bay, R. Kidston, 1876 ! Northend, Miss M'Bean, 

 1877 ! Loch Fyne, Cook and Young, 1863 ! 



