Flowerless Plants. 649 



Solenia Agardh. ) On the Coast. 



ccmpressa, 'Agardh. ) 



Spongia L. 



fluviatilis, L. Leverett and Chesterfield. Enumerated among 



the radiated animals. But most probablyjit is a plant. 

 Sphaerococus Agardh. } P On the coast. 



confervoides, Agardh. 5 

 Ulva L. 



latissima^L. On the coast with several other species. 



POSTCRIPT. 



Professor John Torrey of New York having- obligingly examined the preceding 

 Catalog-ue of Plants has added several species and made several corrections. Most 

 of these have been inserted in the proper places but the following- were not receiv- 

 ed in season. 



UMBELLIFERAE. 



Crantzia Nutt. 



lineata, Nutt. Near Boston : found by Mr. Nuttall. B. D. Greene Esq. 



RANUNCULACEAE. 



Thalictrum. 



cornuti, L. pubescens Ph. revolutum, De Cand. 



