CELLULOSE. ALGACE*. 1 1 7 



Tribe XX. Ulvacece. 



540. PORPHYRA, Ag. PURPLELAVER. 



654. P. laciniata, Ag. Ragged Purpklaver. Cork harbour, &c. 

 very common. 



655. P. vulgaris, Ag. Common Purpklaver. Cork harbour, &c. 

 very common. 



656. P. linearis. Grev. Narrow Purpklaver. Along our coast, 

 near high water mark : Dr. W. H. Harvey. rather rare. 



541. ULVA, Linn. GREENLAVER. 



657. U. latissima, L. Broad Greenlaver. Near Youghal, &c. 

 common. 



658. U. lactuca, L. Lettuce Greenlaver. On rocks near our 

 coast. rare. 



659. U. linza, L. Ribband Greenlaver. Along our coast. rathe) 

 common. 



660. U. bullosa, Roth. Blistered Greenlaver. Near Cork : Dr. W. 

 H. Harvey. About Youghal : Miss Ball. rather rare. 



661. U. crispa, Lightf. Crisped Greenlaver. Roofs, &c. very 

 common. 



662. U. furfuracea, Horn. Furfuraceous Greenlaver. On damp 

 walls in the county : Dr. W. H. Harvey. very rare. 



542. BANGIA, Lyngb. BANGIA. 



663. B. fasco purpurea, Lyngb. Brovmishpurpk Bangia. Ban try 

 bay : Miss Hutchins. By our coast : Dr. W. H. Harvey. rather 

 common. 



664. B. laminaria, Lyngb. Laminaria Bangia. Parasitical on 

 Alaria esculenta, by our coast : Dr. W. H. Harvey. father rare. 



543. ENTEROMORPHA, Link. ENTEROMORPHA. 



665. E. intestinalis, Link. Intestinal Enteromorpha. Both in fresh, 

 brackish, and salt water. very common. 



666. E. compressa, Grev. Compressed Enteromorpha. By our sea 

 shores on rocks and in the sea. very common. 



667. E. erecta, Hook. Erect Enteromorpha. Cork harbour : Dr. 

 W. H. Harvey. Ballycotton : Miss Ball. rather rare. 



668. E. clathrata, Grev. Latticed Enteromorpha. Coast of Cork : 

 Dr. W.H.Harvey, Youghal and Ballycotton : Miss Ball. rather rare. 



669. E. ramulosa, Hook. Branched Enteromorpha. Bantry bay : 

 Miss Hutchins. Probably other places on the coast. rare. 



544. TETRASPORA, Link, TETRASPORA. 



670. T. gelatinosa, Desv. Gelatinous Tetraspora. On aquatic plants 

 in fresh water in several places : Dr. W. H. Harvey. rather rare. 



671. T. lubrica, Ag. Lubricous Tetraspora. Young Grove, Mid- 

 leton and Mogeely, Castlemartyr : Miss Ball. rather rare. 



