181 S/i.i A/nSSES. 



upon the rocks, stones and shells; others grow •••i 

 in the form of plants. None of these, with the ex 

 ception. i>ossil)ly, of the Cora/Ztna, and the Ampfii- 

 roa, will l»c of sufficient interest to any other than 

 the scientific Initanisl, to m.ikc them dt 

 collect. Hut that you may know, that these tl 

 whit h you will funl so plentiful all along the shore, 

 and whit h nuich more rescmhle, by reason of their 

 stony structure, the corals than any pLint. t- f«' 

 plants and not corals, I have selected one ^^-i < n > 

 for description. It should Ix: added, perhaps, that 

 the tnic pbnt structure, and the reproductive organs, 

 really exist as in other red Al^x*, hut .i 1 



beneath the h.ird crust which is secreted ujwn the 

 outside. 



CoRAUJNA r>FnCINAIJS, L. 



The medicinal species of this genus is the only one 

 on our eastern shore. It is also a native of Cali- 

 fornia. It grows in great abundance in tide pools, 

 and upon the rocks, alx}ut low- water mark, all along 

 our shores from New York northward. It is from 

 one and a half to three inches high, extremely vari- 

 able in si/e and as)>ect, in some cases loosely and \\\ 

 others densely tufted ; in color, from a reddish pur- 

 ple to a gray green, and if exjwscd to the weather, 

 for a httle time, upon the beach, bleach out quite 



