228 SEA-WEEDS. 


















royal museum as meteoric paper ! 
and sharp-pointed and jointed dark-green filaments, may be 
seen, in the deeper and colder tide-pools, the Cheetomorpha 
melangonium, looking rich and inviting to the eye; and 
lining the bottom, may be detected the dwarfer forms of the 
Carrageen, or Chondrus crispus, and its relative and ne 
bor the Gigartina mammillosa, with its channelled, forked, 
lobed frond, the segments often covered with tubercules, 
color a rich dark purple, becoming, like the carrageen 
the same horny stiffness when dry. Sometimes among 
rocks, but oftener lying upon the soft mud, are the beat 
shining smooth green Ulva, or Laver, of which there are t 
or three kinds; the seeds are to be looked for in the - 
substance of the fronds, arranged in fours; one, the 0: 
latissima, or oyster-green, grows upon the shells of oys 
and may be frequently seen on piles of living oysters 1m% — 
market. Served with lemon-juice, it is employed as a sald, 
and esteemed by the Chinese as salubrious. Hang! 
piles and piers in a flaccid, drooping way when the | 
out, but bravely flaunting its gay, rich purple banners 
rushing and incoming return of the sea, is the Porphyr? 
purple Alga, which I have seen finely luxuriant at B5 
Boston ferry dock, and elsewhere. 
A most interesting order of the sea-weeds is the > 
ACEE: green, or else coated with lime, the fronds very 
ble in form, but made up of hollow, inarticulate plami 
belonging to our warmer seas, but represented in the 
feathery Bryopsis plumosa, found near Quincy, and gi 
by my friend, Miss Brewer, of Boston, —something 
looking after on the narrow leaves of the sea-wrack, 
te 
IPH 
ra. 
The ribbon leaves of this plant, familiarly know? 
grass, is often prettily speckled with small pa : 
thin scale, of an irregular outline. Any one of OE 
