The Scottish Naturalist. 



201 



Tillyfour ; Towie ; Whiteley Marsh ; Tonley. 



24. Linea, Perty. 



Little Don ; Whiteley Marsh ; Pond, Haughton ; Tonley. 



25. Lineatum, Ehr. 



Tonley ; Towie. 



26. Lundellii, Lagerh. 



Whiteley Marsh ; Tonley. 



27. Lunula (Mull) Nitz. 



Tough ; Towie ; Tonley ; Inch ; &c. 



28. Macilentum, Breb. 



Little Don ; Whiteley Marsh ; Old Curling Pond, Haughton. 



29. Monihferum (Bory) Ehr. 



Little Don ; Towie ; Balfluig, &c. 



30. Obtusion, Breb. 



Whiteley Marsh. 



31. Patvulum. Nag. 



Whiteley Marsh. 



32. Pfitchardianum. Archer. 



Waterside, Haughton ; Waterton, Logie. 



33. Pseudodianoe. n. sp. 



A small slender species, about 15 times longer than broad, regularly, but not 

 strongly curved ; inner margin almost straight for about ^ of its length ; 

 frond smooth, without striee, brownish straw-colour, with one suture, tips 

 slightly thickened ; fillets irregular ; about one-tenth of semi-cell towards 

 the apex without chlorophyl, and containing a few moving granules. 



Length, 210 ; breadth, 14 ; do. at apex, 3. Tonley Moss. 



Has considerable resemblance to CI. Diance, Ehr., but is much smaller and 

 differs in the curvature. It is not uncommon in Scotland and Ireland. 



34. PusUluvi) Hantzsch. 



Whiteley Marsh ; Towie ; Tonley. 



35. Ro stratum, Ehr. 



Little Don \ Keig ; Scott's Mill, Haughton, &c. 



36. Setaceum, Ehr. 



Towie ; Old Curling Pond, Haughton. 



37. Strigosum, Breb. 



Kinstain Bog ; Old Curling Pond, Haughton ; White- 

 haugh ; Balfluig, &c. 



38. Striotatum, Ehr. 



Little Don ; Towie ; Correnie ; Whiteley Marsh ; Tilly- 

 four ; Whitehaugh, &c. 



