106 CELLULOSE. ALGACE^:. 



447. E. siliculosus, Lyngb. Podded Ectocarpus. On Alyce and 

 Corallines along our coast : Dr. W. H. Harvey ; Miss Ball. 

 rather common. 



448. E. fasciculatus, Harv. Tufted Ectocarpus. Near Youghal : 

 Miss Ball. very rare. 



449. E. tomentosus, Lyngb. Woolly Ectocarpus. Bantry bay : 

 Miss Hutchins. Youghal and Ballycotton : Miss Ball. Cork har- 

 bour. rather rare. 



450. E. granulosus, Ag. Granular Ectocarpus. Bantry bay: Miss 

 Hutchins. Youghal and Ballycotton : Miss Ball. rather common. 



451. E. sph&rophorus, Cam. Round/rutted Ectocarpus. Bantry 

 bay : Miss Hutchins. Youghal : Miss Ball. very rare. 



452. E. Mertensii, Ag. Merten's Ectocarpus. Cork harbour: 

 Dr. W. H. Harvay. No other observer has noticed it. very rare. 



486. MYRIOTRICHIA, Harvey. MYRIOTRICHIA. 



453. M. clav&formis, Harv. Club Myriotrichia. Bantry bay : Miss 

 Hutchins. Cable Island near Youghal, growing: Miss Ball. rather 

 rare. 



454 . M. filiformis, Harv. Slender Myriotrichia. Youghal bay : 

 Miss Ball. rather rare. 



Tribe VII. Chordariece. 

 487. CHORDARIA, Ag. CHORDARIA. 



455. C. fiagelliformis, Ag. Common Chordaria. Cork harbour 

 and on rocks by the coast. common. 



488. HELMINTHOCLADIA, Harvey. HELMINTHOCLADIA. 



456. H. vermicularis, Sm. Wormlike Helminthocladia. Youghal 

 and Ballycotton : Miss Ball. In the deep sea : Dr. W. H. Harvey. 

 Along our coast. common. 



457. H. grijfithsiana, Harv. Griffith's Helminthocladia. Bantry 

 bay : Miss Hutchins. In the deep sea. very rare. 



458. H. virescens, Grev. Greenish Helminthocladia. Bantry bay : 

 Miss Hutchins. Ballycotton : Miss Ball. rather rare. 



489. CORYNEPHORA, Ag. CORYNEPHORA. 



459. C. marina Ag. Marine Corynephora. Youghal : Miss Ball. 

 On rocks and Corallines along our coast. rather common. 



Suborder II. RHODOSPERME^E. 



Tribe VIII. Gloiocladece. 

 490. MESOGLOIA, Harvey. MESOGLOIA. 



460. M. multifida, Ag. Dichotomous Mesogloia. Skellig, and along 

 the western coast of the county : Dr. W. H. Harvey. rather rare. 



461. M. Hudsoni, Ag. Hudson's Mesogloia. Bantry bay : Miss 

 Hutchins. Along the western coast of the county : Dr. W. H. 

 Harvey, rare. 



462. M. coccinea, Ag. Rosered Mesogloia. Bantry bay : Miss 

 Hutchins. And probably elsewhere on our coast. very rare. 



