CATALOGUE OF PLANTS. 243 



C. glaucescens (Griff.), Harv. 



In tide pools, Little Cranberry Isle (Collins), 

 C. laetevirens (Dillw.), Harv. 



Common in tide pools. Little Cranberry Islej near Seal 

 Harbor (Collins). 



C. gracilis (Griff.), Kuetz. 



In lower tide pools. Near Seal Harbor (Collins) ; — Somes 

 Sound (Holden). 



G. expansa, Kuetz. 



In upper tide pools, Seal Harbor; very common in lagoon, 

 Little Cranberry Isle (Collins) ; — Long Pond (Holden). 



C. rupestris (L.), Kuetz. 



On rocks in tide pools. Sea Wall (Holden). 

 C. flexuosa (Griff,), Harv. 



Sea Wall (Holden). 



RHIZOCLONIUM, Kuetz. 



R. riparium (Eoth), Harv. 



Very common all along the shore (Collins); — Norwood Cove 

 (Holden). 



R. tortuosum, Kuetz. 



Common in tide pools (Collins) ; — Sea Wall (Holden). 



CH^TOMORPHA, Kuetz. 



C. Picquotiana (Mont.), Kuetz. 



From deep water. Seal Harbor (Collins). 

 C. Melagonium (Web. & Mohr), Kuetz. 



Sea Wall (Holden). A form found on pebble in lagoon, 

 Little Cranberry Isle (Collins), probably belongs to this species, 

 though only about half the usual diameter. 



