1 1 6 CELLULOSE. ALGACE.E. 



536. SCYTONEMA, Ag. SCYTONEMA. 



631. S. ocellatum, Harv. Cartilaginous Scytmema. In alpine bogs 

 in the County of Cork : Dr. W. H. Harvey. very rare, 



632. S. minutum, Ag. Small Scytonema. In the hilly districts of 

 the County Cork : Dr. W. H. Harvey. rather rare. 



633. S. myochrous, Ag. Flexuous Scytonema. Near Bantry para- 

 sitical on Orthotrichum rivulare : Miss Hutchins. very rare. 



537. CALOTHRIX, Ag. CALOTHRIX. 



634. C. confervicola, Ag. Conferva Calothrix. Youghal, and 

 Cork harbour, and along the coast. very common. 



635. C. luteola, Grev. Yellowish Calothrix. At Ballycotton, 

 growing : Miss Ball. very rare. 



636. C. nivea, Ag. Snowy Calothrix. In pools of sea water along 

 the shore at Cusquinny, Great Island : Dr. LanJcester. very rare. 



637. C. scopulorum, Ag. Rock Calothrix. On sea rocks. common. 



638. C. interrupta, Carm. Interrupted Calothrix. On mosses, &c. 

 in the County of Cork, passim : Dr. W. H. Harvey. rather rare. 



639. C. hydnoides, Harv. Hydnum Calothrix. Cork harbour, along 

 the clayey shore in several places : Dr. Harvey rather rare. 



640. C. distorta, Ag. Distorted Calothrioe. On aquatic plants in 

 pools and streams near Bantry : Miss Hutchins. very rare. 



538. LYNGBYA, Ag. LYNGBYA. 



641. L. muralis, Ag. Wall Lyngbya. Near Cork and Youghal, &c. 

 common. 



642. L. majuscula, Harv. Large Lyngbya. Bantry bay: Miss 

 Hutchins. rare. 



643. L. ferruginea, Ag. Rusty Lyngbya. Near Cove : Dr.W.H. 

 Harvey. rare. 



644. L. Carmichaellii, Harv. CarmichaeVs Lynglya. On Alga 

 and rocks along the coast of the county. Dr. W. H. Harvey. rare, 



645. L. speciosa, Carm. Beautiful Lyngbya. With the preceding. 

 rare. 



539. OSCILLATORIA, VttUck. OsCILLATORIA. 



646. O. Friesii, Ag. Fries' Oscillatoria. On mosses : Dr. W. H. 

 Harvey. rare. 



647. O. limosa, Ag. Mud Oscillatoria. Ditches, &c.: Dr. W. H. 

 Harvey. common. 



648. 0. tenuis, Ag. Lesser Oscillatoria. Near Cork and Cove. 

 common. 



649. O. decorticans, Grev. Ribband Oscillatoria. On walls. common 



650. O. nigra, Vauch. Blackish Oscillatoria. Ponds. common. 

 G51. O. autumnalis, Ag. Autumnal Oscillatoria. On walls. common 



652. O. corium, Ag. Leathery Oscillatoria. Mountain streams. 

 common. 



653. O. subfusca, Vauch. Brou-nish Oscillatoria. Alpine stream?. 



