238 PROCEEDINGS OF THE AMERICAN ACADEMY. 



cillus, and only at our last visit I noticed, in water barely deep enough 

 to cover them, peculiar little mounds in the sand ; brushing off the tops 

 of these revealed the Penicillus capitatus, as abundant as seedling ever- 

 greens in a neglected Maine pasture lot. Not far from here, on a stone 

 wall at the edge of a gentleman's garden, the ribbon Ulva, U. fasciata, 

 streamed out into the water, quite filling it for a distance of about a 

 meter. It grew here, on a very limited area, on each of our visits, but 

 we found it nowhere else on the island. . . . 



" Morant Bay is larger, and has a comparatively long stretch of sandy 

 beach, but the surf comes in so heavily that seaweeding is very difficult. 

 Annotto Bay is somewhat unusual, the land for some distance from the 

 sea being low and swampy, with sluggish rivers entering the sea by 

 several mouths, but the sandy pebbly shores retained the usual beautiful 

 curve. Montego Bay has a group of small atolls overgrown with man- 

 grove trees, surrounded with shallow water. Kingston has a fine large 

 harbor, enclosed by a long, narrow, sandy arm. On the outside of this, 

 deep water species were often washed ashore. . . . 



" The conditions under which one must collect algae in the tropics are 

 somewhat different from those for collecting in the North, where we 

 have the rise and fall of the tide at intervals of a few hours, alternately 

 laying bare and covering the algae on the rocks. At Jamaica many 

 weeds grow on rocks so situated as to be alternately bared and covered 

 by the wash of the waves at intervals of a few minutes. Many of the 

 Polysiphouias, Gelidiums, Gracilarias, etc., are generally found under 

 these conditions. Padina and the Galaxauras occur at these stations, 

 but the finest growth of Padina that we saw was at Montego Bay, from a 

 road passing over a bluff, directly on the edge of the sea, down into which 

 one could look and see Padina growing like a field of gray morning- 

 glory blossoms set upon stones in the shallow, rather quiet water. Near 

 by were patches of Zonaria variegata, like red-brown morning glories. 



" Much of our collecting was done from boats, rowed by two or three 

 strong, experienced boatmen. We would be rowed out to the shallow 

 places overgrown with grass, the water even there being to our waists, 

 then jump from the boat into the water, and fish about for seaweeds. 

 We always wore bathing suits and boys' thick hip rubber boots. On the 

 reefs or by the ledges the waves were often strong enough to take us off 

 our feet. Then we would cling closely together, one holding on to the 

 other, while the latter plunged for the seaweeds. Even then we would 

 sometimes be washed away from our footing. The boatmen would be 

 busy keeping the boat from the rocks, and stood ready to assist us back 



