CELLULOSE. ALGACEJJ. 109 



.505. LAURENCIA, Lamour. LAURENCIA. 



494. L. pinnatifida, Lam. Pinnatifid Laurencia. Cork harbour 

 and on rocks in the sea. common. 



,, y3. osmunda. Hook. Youghal : Miss Ball. rather rare. 

 y, angusta, Hook. Youghal : MissBall. rather common 

 . tenuissima, Hook. Youghal : Miss Ball. very rare. 



495. L. obtusa, Lam. Obtuse Laurencia. Bantry bay : Miss Hut- 

 chins. rare. 



496. L. dasyphylla, Lam. ThicMeaved Laurencia. Bantry bay : 

 Miss Hut chins. Ballycotton, washed ashore : Miss Ball. rather rare. 



497. L. tenuissima, Lam. Slender Laurencia. Ballycotton; one 

 specimen in fruit : Miss Ball. very rare. 



506. CHYLOCLADIA, Grev. CHYLOCLADIA. 



498. C. clavellosa, Hook. Clavellate Chyclocladia. Bantry bay : 

 Miss Hutchins. Youghal : Miss Ball. rather rare. 



499. C. ovalis, Hook. Oval Chylocladia. Near Youghal: Miss 

 Ball- rare. 



500. C. Jcaliformis, Hook. Salsola Chylocladia. Bantry bay : 

 Miss Hutchins. Ballycotton : Miss Ball. rather rare. 



501. C. parvula, Hook. Least Chylocladia. Bantry bay : Miss 

 Hu t chins. rare. 



502. C. articulata, Hook. Articulate Chylocladia. Cork harbour. 

 common. 



507. GIGARTINA, Lamour. GIGARTINA. 



503. G. purpurascens, Lam. Purplish Gigartina. Cork harbour. 



504. G. confervoides, Lam. Confervoid Gigartina. Bantry bay: 

 Miss Hutchins. Youghal : Miss Ball. Along our shores. common. 



/3. procerrima, Turn. Youghal bay : Miss Ball rare. 



y, albida, Turn. Youghal : Miss Ball. rare. 



> d. geniculata,l{a.vv. Near Youghal : Miss Ball. rare. 



505. G. erecta, Hook. Upright Gigartina. Youghal : Miss Ball. 

 very rare. 



506. G. Griffithsice, Grev. Griffiths Gigartina. Bantry bay : Miss 

 Hutchins. very rare. 



507. G. plicata, Lam. Entangled Gigartina. Cork harbour. 

 common. 



508. CHONDRUS, Stack. CHONDRUS.. 



508. C. mamillo&us, Grev. Mamillated Cttondrus. By the coast. 

 common- 



509. C. crispus, Lyngb. Curled Chondrus ; Carrigeen Moss, or 

 Irish Moss. Cork harbour, and along the coast. very common. 



510. C. norvegicus, Lam. Norwegian Chondrus. Bantry bay : 

 Miss Hutchins. Youghal ; Ballycotton : Miss Ball. rather rare. 



511. C. membranifolius, Grev. Membranous Chondrus. Youghal: 

 Miss Ball. Probably along our coast. rather common 



