MONOCOTYLEDONS 



Ord. Orchidacecz 



1. Listera cordata (Lesser or Heart-leaved 

 Twayblade). Not included in Edmondston's 

 list. The writer found several specimens in 

 a restricted locality on the west side of 

 Vallafield while in company with the Rev. W. 

 Brownlee, late of Baltasound. Beeby reports 

 localities in Yell and Mainland. 



2. Orchis mascula (Early Purple Orchis). 

 Dry hills and pastures. Frequent. 



O. latifolia (Marsh Orchis). Very abun- 

 dant. 



O. maculata (Spotted Orchis). Abundant. 



3. Habenaria conopsea (Sweet-scented 

 Orchis). Dry places among heath; near 

 North Roe, Northmaven. 



H. albida (Small White Habenaria). Island 

 of Bressay. 



H. viridis (Frog Orchis). Dry limestone 

 and serpentine pastures ; Tingwall, Unst ; 

 Fetlar, and elsewhere. Not unfrequent. 



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