8o 



Transactions of the 



[Sess. 



Fern, which completely drapes the high banks near the old castle 

 ^^'ith its pretty fronds. A finer display, in its way, could scarcely 

 be seen anywhere. 



The species of Ferns which contain most varieties are Polypo- 

 dium vulgare (37 varieties), Polystichum angulare (162), Lastrea 

 filix-mas (69), L. dilatata (61), Athyrium filix-fosmina (over 200), 

 Scolopendrium vulgare (over 400), and Blechnum spicant (68). 

 Several Ferns, as Polypodium Dryopteris, the Woodsias, the Hy- 

 menophyllums, &c., are not known to produce any varieties. 



The following is the list of Fern varieties which I have gathered 

 in this locality: — 



Polypodium vulgare, var. auritum. 



„ Phegopteris, var. multifidum. 



Lastrea filix-mas, var. abbreviata. 

 Borreri. 



incisa (with two sub-varieties), 

 producta (with sub-variety), 

 dentata. 

 pinnatifida. 



furcans (with two sub-varieties), 

 variabilis, 

 depauperata. 

 multiformis. 

 Lastrea dilatata, var. Brownii. 

 Athyrium filix-fcemina, var. incisum. 



„ „ decompositum. 



„ „ denticulatum. 



Scolopendrium vulgare, var. undulatum. 

 ,, „ sublineatum. 



„ „ reniforme. 



The following Fern species have also been gathered by me in 

 this district : — 



Polypodium vulgare. 



„ Dryopteris. 



,, Phegopteris. 



Polystichum aculeatum. 

 Lastrea filix-mas. 



„ dilatata. 



„ Oreopteris. 

 Athyrium filix-foemina. 

 Asplenium Trichomanes. 

 Blechnum boreale. 

 Pteris aquilina. 

 Hymenophyllum Wilsonii. 

 Cystopteris fragilis. 



Botrychium lunaria. 



(All the above were gathered within 

 a mile of the old castle.) 



Asplenium Trichomanes. 



„ viride. 



Cystopteris fragilis. 

 Scolopendrium vulgare. 

 Asplenium Adiantum-nigrum. 



(The first three were gathered in 

 Devol Glen, the last two at the side 

 of the Clyde below Gourock. One 

 or two plants of Allosorus crispus 

 have also been got in the parish.) 



