OCCURRENCE OF PYLAIELLA VARIA IN SCOTLAND 101 



ToS. SUTHERLAND, W. 



Cochlearia groenlandica, L., E. S. Marshall in " Ann. Scot. Nat. 



Hist." 1892, p. 187. 



(In our old manuals C. grxnlandica usually meant the C. alpina of 



the present day.) 



109. CAITHNESS. 

 Hieracium reticulatum, Lindeb., Hanbnry, sp. 



1 10. OUTER HEBRIDES. 



[1891 Report. Delete the following as on record, viz. : Arabis, 

 Orobus, Lysimachia, Polygonum, Lister a cor data, Habenaria (2), 

 Potamogeton pusillus, Carex pauciflora, and Pilularia^\ 



(Recorded by W. S. Duncan, sp.} 



Raphanus maritimus. Juniperus communis. 



Alchemilla arvensis. Ruppia rostellata. 



Centunculus minimus. Carex distans, f. 



THE OCCURRENCE OF PYLAIELLA VARIA, 

 KJELLMAN, IN SCOTLAND. 



By E. M. HOLMES, F.L.S. 



* 



PLATE III. 



UNDER this name Kjellman described in 1883, in his " Algje 

 of the Arctic Sea" (p. 282), a plant which, although very 

 variable in its characters, he considered to be distinct from 

 P. litoralis, Kjellm. His description of the plant is as 

 follows : 



" P. thallo racemoso-ramoso, ramis sub angulo fere recto egredien- 

 tibus duplicis generis, longioribus et brevissimis ; his e singulis bis 

 denis cellulis constructis, omnibus, vel saltern nonnullis, vulgo 

 divisione vario modo peracta in zoosporangia vario modo disposita 

 mutatis. Tab. 27, Figs. 1-12. 



" The alga forms loosely complicated mats of a dark olive-brown, 

 lying free on the bottom or hanging on larger algae. I have not 

 found attached specimens. The frond is repeatedly racemosely 



