1887-88.] Marine Algw of Elie. 173 



have been the latter species which he found, 

 and which occurs in the district. 



170. Sphacelaria radicans, Harvey. 



At 7 and 12, on sand-covered rocks near low- water 

 mark. All the year. Ftuit in winter. 



171. Sphacelai'ia scoparia, Lyngb. 



At 7 and 12, in fine specimens, and in considerable 

 abundance, accompanying Sphacelaria cirrhosa, in 

 deep shaded pools above the high-water mark of 

 neap tides. All the year. These, which I dis- 

 covered in the summer of 1885, are the only Firth 

 of Forth localities recorded. 



172. StrcUonema vehdina, Derb. et Sol. 



At 8 and 12, parasitic on Hmiantlialia lorea, usually 

 associated with Machistea scutillata. Annual. 

 Fruit, July, August. 



173. Si/mplocd Harvcyi, Le Jolis. 



At 2 and 7, in shallow rock-pools near high-Water 

 mark, the finest specimens being in the shade. 

 Earely epiphytic on Cladostephus spongiosus. Annual. 

 Certified by Bornet (G. W. T., 1879). 



174. Ulothrix fiacca, Thuret. 



At 8 and 12, on rocks and Algse near high-water 

 mark, usually in the shade ; often associated with 

 tllothrix isogona. Annual, November to August. 

 Fruit in winter and spring. Spores escape iii May 

 and June. , 



175. Ulothrix isogona, Thuret. 



At 8 and 12, associated with the above. Annual, 

 November to August. Fruit in winter and spring. 

 Spores escape in May and June. 



176. TJlva latissima, Linn. 



Common on rocks and stones, a,nd epiphytic on Algge, 

 in pools between tide marks. All the year. In best 

 condition in May, June, and July. 



177. Ulva Linza, Linn. 



Common in pools at about half-tide level. Annual, 

 May to September. 



