2G3 SEA MOSSES. 



In the water, it is often a deep, rich rctl, but 

 when on |>a|K:r the red has a marked bruwn sfude. 

 It is common aUmg the whole coast from Nrw Vurk 

 northward, from June to NovemL)cr. I havt cicd 



it in al)undan<e on /Ct^s/rra, in Marblehead |{arl>or, 

 in Atigust, and on the piers at WixhI's HoU, the very 

 bst d,\yi of ()«t«)l)cr. Mr. Collins has found it in 

 Novemlxrr, at Naliant. 



Caixtthamxion I)AS\-oinis, Ac. 



'I*his and the following sfKrcies are all that 1 hill 

 undertake to descrilK* of the CaUithannia of i. 



This plant is more robust tlian any of the genus grow- 

 ing in the .Atlantic waters. It attains a height of four 

 inches or more. Ita main stem is twice as thick as 

 a bristle, n-gularly and alternately branched along 

 its op|>osile sitles. 



These branches arc of irrcgubr length. Some 

 of them as long as the main stem. Somr and 



some a cjuaner as long. The primary branches also 

 branch along the two sides in the same plane and in 

 the same manner as the main stem. Likewise the 

 secondary and tertiary branchlets sometimes, so that 

 the pkint becomes pinnatcly decompounded three or 

 four limes, the ullinute ramuli being very fine, and 

 sometimes long. 



