1887-88.] Marine Algw of Elie. 157 



from half-tide to low-water mark ; always submerged. 

 Annual, May to October. In best condition in 

 July and August. 



7. Callithamnion arhuscula, Lyngb. 



At 7, 8, 9, and 10, in great abundance, and often in 

 very fine specimens. On vertical rocks in the shade, 

 usually a little below half-tide, in places uncovered for 

 some hours daily. Perennial, but in poor condition 

 and stunted during winter. Fruit from April to Aug. 



8. Callithamnion harbatum, Ag. 



In deep pools at 2, usually on rocks. Sometimes epi- 

 phytic on Algffi ; always submerged, and in the shade. 



9. Callithamnion Brodicei, Harv. 



On reefs at 9 in the shade, near low-water mark. 

 Annual, May to October. Fruit, August, September. 



10. Callithamnion corymhositm, Ag. 



In deep pools at 2; always submerged. Annual, June 

 to September. Fruit, July, August. 



11. Callithamnion fioridulnm., Ag. 



At 7, 8, 9, &c., on sandy rocks near low-water mark ; 

 usually dry at ebb tide, and exposed to the sun. 

 All the year. Fruit in autumn and winter. 



12. Callithamnion fruticulosum 1 J. Ag. 



On rocks in the shade at 10, at about half-tide level. 

 Fruit in July. Agardh, in writing to me regarding 

 this plant, says — " From examination of the speci- 

 men, it looks as if it did not belong to the species 

 with truly distichous branches ; and, if so, it may 

 possibly belong to Callithamiiionfruticulosum, J. Ag." 



13. Callithamnion gracillimum, Ag. 



In deep pools at 2; always on submerged rocks in the 

 shade. Fruit, August, September. 



14. Callithamnion Hoohcri, Ag. 



At 3, 7, 8, 9, 12, fine and common. On Algae near 

 low-water mark, usually in places uncovered for 

 several hours daily. Annual, March to October. 

 Fruit from May to August. This is supposed to be 

 the Callithamnion roseum of the Flora Udinensis. 



15. Callithamnion phcmula, Lyngb. 



" On Algse, Elie," M'Bain. On rocks and Algae near low- 

 water mark. Annual, summer. Fruit, July, August. 



