98 Flora of Shetland 



a small sub-alpine stream near Skaw, Unst. 

 It grows abundantly, and is very luxuriant, 

 forming large pendant flakes intermixed with 

 Bryum punctatum, Jungermannia dilatata,and 

 other Cryptogamia." (Edmondston.) 



8. Osmunda regalis (Royal Fern). Very 

 rare. One tuft near Sandwick, Unst. 



9. Botrychium Lunaria (Moonwort). Dry 

 hills and pastures ; generally distributed. To 

 be found very plentifully in pastures around 

 Baltasound. 



10. Ophioglossum vulgatum (Adder's 

 Tongue). Burn of Sundibanks, near Scallo- 

 way. 



Ord. Equisetacea 



i. Equisetum arvense (Cornfield Horse-tail). 

 Frequent. 



E. sylvaticum (Wood Horse-tail). Bushy 

 places ; not rare. Near Petester and Wood- 

 wick, Unst ; Upper Sound, near Lerwick, 

 etc. 



E. limosum (Smooth Naked Horse-tail). 

 Not rare. Loch of Cliff, etc. 



E. palustre (Marsh Horse-tail). Common. 



