SOROSPORA. 309 



46. SOROSPORA //as5. 



Char. Cells nucleated, associated in clusters. 



Derivation. From (Tcopos, a cluster or mass, and airopa, a 

 seed. 



1. SOROSPORA MONTANA Hass. 



Plate LXXIX. Fig. 1. 



Char. Frond between coriaceoiis and gelatinous, irregular, 

 much and variously lobed, curled, dark jjurple. Granules 

 . crowded, in clusters composed of six or eight granules each. 

 P. alpicola Lyngb., Hydroph. p. 2067. ap. 69. Ulva mon- 

 tana Light., Scot. Flor. p. 973. Ulva montaiia Hud- 

 son, Flor. Ang. p. Q52. Ulva montana Withering, Ar- 

 rangement of Br. PI. vol. iv. p. 122. ; Smith, E. B. 

 t. 2193.; Harv. in Hook. Br. Flora, p. 396., also in 

 Manual, p. 179. 



Hah. On mosses and lichens on the summits of rocks. On 

 the mountains of the Isle of Skye, and west coast of 

 Scotland; GlenCateol: Dr. M'Culloch. Lying on the 

 ground but not attached to it, in stony moist places on 

 Goat Fell, Arran : Sir W. J. Hooker. 



According to Lightfoot, this is the " Mountain Dulse " of 

 the Scotch. 



" On the mountains of Arran this lies unattached among 

 loose wet stones, covering them in a straggling manner to a 

 considerable extent. Each frond is an inch or an inch and a 

 half in diameter, flattish, somewhat orbicular, between co- 

 riaceous and gelatinous ; when dry almost horny, of a deep 

 but dull purple colour, much lobed and curled, like some Gy- 

 rophora;, filled with crowded clusters of granules, which, if 

 minutely examined, are found to be arranged mostly in fours." 

 ~ Hook. 



