98 FLORA ORCADENSIS. 
Var. subinermis (Kuetz.) Abundant in deeper 
water of Loch of Harray. Dr Clouston says of this 
species in “Anderson’s Guide” :—“This is the only 
addition to the Orkney flora which is new to Great 
Britain.” 
563. C. HISPIDA (Linn.) 
Loch of Airy, Stronsay ; Brodgar. 
564. C. VULGARIS (Linn.) Common. 
Var. longibracteata (Kuetz.) Kirbuster, Orphir ; 
Holm ; seen by Mr Ar. Bennett. 
Var. atrovirens (Lowe). Swanbister. 
565. C. BALTICA (FY.) 
This chara was found for the first time some twelve 
years ago by the late Mr W. Crawford, Edinburgh. 
It grows luxuriantly and abundantly in the muddy 
bottom of the Loch of Stenness. 
