NATURAL HISTORY. 
2. C. Sponerosus. Dillw. t. 42. E. Bot. t. 
2427, (Conr.Sponarosa.) At the back of 
Exmouth warren. 
SPHACELLARIA. 
The filaments jointed, distichous, or dichotomously 
branched, the ends of the branches abrupt Sphacellate 
— ihe fructification, granules in the Sphacellated apex, 
or capsules, 
1. S. Scoparia. E. Bot. t. 1552. Dillw. t. 
52. (Conr. Scoparia.) Frequent on the 
sea coast. 
ECTOCARPUWS. 
The filaments jointed and much branched—the 
Sructification—lanceolate pods, or ovate capsules, 
solitary or racemose, 
1. E. Lirtesauis.  Dillw.t31.. E. Bot. t. 
2290. (Conr. Lirrorauxts.) Common on the 
coast, attached to rocks and fuci. 
B. Fronds not articulated, 
DIVISION 4, ULVOIDEE. | 
The plants of this division are chiefly marine, and 
have thin cellular fronds, which are either plane or 
