f 



313 



plants collected by Mr. Morse having it ^*n abundance. 

 C, Barren, Ag. Common. 



C roseum (Roth.), Harv. Sterile, and therefore doubtful. 

 C byssoideuDi^ Arn. Rather common. 



C, teime, Harv. Not uncommon In thoroughfares, etc. Though 

 this species has been known for forty years or more, the cys- 

 tocarpic fruit has never been found, and by European writers 

 It is generally placed in the genus Griffitksia, which it resem- 

 bles in habit more than it does CallitJiantnioih 

 Pttlota elegans, Bonnem. Not uncommon, washed ashore. 

 Ceramiwn rtihrtim, Ag. Common. 



C strictiim (Kiitz.), Harv. Common, varying from the type 

 to a robust, widely branching form, which is v^ry near, 

 if not actually, C. diaphanuin. Roth. 

 C. fastigiattim, Harv. Not uncommon. 

 C, temnssimtnn (Lyngb.), Ag. Not uncommon. 

 C. tenuissimicm, var. patentissimwn, Harv. With the type. 

 Spyrzdia Jilamentosa, Harv- Not uncommon. 

 PhyllopJiora Brodimi, Ag. 



P^membranifolia, K^. Both from deep water; not very com- 

 mon nor very large plants. 

 Cy stoc Ionium ptaptirascens, Kiitz. Not uncommon. 

 Chondrtis crisptts (L.), Stack. Common. 

 ^hodymeiiia pahnata (L.), Grev. Not uncommon. 

 Lomentaria 2incinata, Menegh. Common ; often luxuriant and 

 very handsome; sometimes appearing to be var. rohisia, Harv. 

 L, nncwata, var. filiformis, Harv. With the type, less common. 

 Champia pa7^vula (Ag.), Harv. Common. 



Gelidiiim crinale, Ag. Probably not uncommon, but inconspic- 

 uous and easily overlooked. 

 Khabdoiiia tenera, Ag. Common. 



Grinnellia Ajnericana, Harv. Abundant and luxuriant. 

 ^elesseria sidtLosa, Lamour. From deep water; not uncommon. 

 A Leprieurii, Mont. Abundant at low water mark on the piles 



of railroad bridges, etc., with BostrycJiia rivtdaris. 

 Gracilaria multipartita, Ag. 

 G. multipartita, var. angustissima, Harv. Both type and variety 



common. 



