MARINE ALG.E OF BEAUFORT, N. C. 



403 



to three days' work in each locality and are believed to give a fair representation of the 

 algae present at these times. The species and varieties found are as follows: 



BANKS CHANNEL, MASONBORO SOUND, WRIGHTSVILLE BEACH, N. C. 



Ulva lactuca. 

 Codium decorticatum. 

 Codium tomentosum. 

 Ectocarpus sp. 

 Rosenvingea orientalis. 

 Dictyota dichotoma. 



Lyngbya sp. 

 Enteromorpha prolifera. 

 Ulva lactuca. 



Undetermined Myxophyceae. 

 Enteromorpha prolifera. 



Gracilaria confervoides. 

 Gracilaria multipartita. 

 Hypnea musciformis. 

 Champia parvula. 

 Herposiphonia tenella. 

 Melobesia sp. 



SOUTHPORT, N. C. 



Cladophora fascicularis. 

 Gracilaria multipartita. 

 Bostrychia rivularis. 



GEORGETOWN, S. C. 



I Ulva lactuca. 



PAWLEYS ISLAND, NEAR GEORGETOWN, S. C. 



Enteromorpha prolifera. 

 Codium decorticatum. 

 Codium tomentosum. 

 Gelidium crinale. 

 Hypnea musciformis (2 cm. long). 



Chaetomorpha linum. 

 Gelidium coerulescens. 

 Agardhiella tenera ? 



Grinnellia americana (i cm. long). 

 Dasya pedicellata (i cm. long). 

 Herposiphonia tenella. 

 Polysiphonia denudata? (2 cm. long). 



CHARLESTON, S. C. 



Gracilaria confervoides. 

 Gracilaria multipartita. 

 Grateloupia gibbesii. 



PORT ROYAL, S. C. 



Enteromorpha linza. 



Enteromorpha prolifera. 



Gracilaria multipartita var. angustissima. 



Gracilaria confervoides. 



Lomentaria uncinata. 

 Polysiphonia harveyi. 

 Polysiphonia denudata. 



TYBEE, GA. 



No algae except undetermined Myxophyceae on oyster shells. 



METHODS FOR COLLECTING AND PRESERVING ALG^E. 



Many excellent specimens of algae may be gathered from the beach, where they are 

 thrown by the tides and waves, but satisfactory collections can be obtained only from 

 the places where they are growing. Except in deep water, where the tide makes no 

 appreciable difference, all collections should, of course, be made at low tide. The algae 

 are procured in three ways: Those growing between tide lines or near the surface are 

 collected by hand; at a greater depth they may be gathered by long hooks, rakes, or 

 tongs; while those growing at great depths are obtained by dredging. These three 

 methods differ greatly in their relative values. Those stations which may be reached 



