Pl. cell. aph. 2. THALASSIOPHYT &. 61. Spheeroc. 371 
Fucus membranaceus rubens angustifolius, marginibus ligulis armatis, 
Rati Syn. 47, 33. 
Fucus ciliatus, Lin. Mant. 436; Turn. Hist. 70; Engl. Bot. 1069. 
Fucus holosetacéus, Gmel. 177, 
Fucus ligulatus, Gmel, 178. 
Ulva ciliata, De Cand. Fl. Fr. 2,13, 
Spherococcus ciliatus, Agardh Syn. 28. 
Delesseria ciliata, Lamour. Thal. 
Dulesh. 
Sea-shore; perennial; winter. 
_ Thallus 3 or 4 inches long; eaten as a salad either alone 
or after being sprinkled before drying with a little alkaline 
salt. 
8. pinnatifidus. Thallus lanceolate, pinnately divided ; 
segments long: » lanceolate, simple. 
’ 
y. palmatus. Thallus lanceolate, rather naked, undi- 
vided or palmate. 
0. jubatus. Fringes branched. 
Fucus jubatus, Linn. Trans. 3, 162. 
s. lanceolatus. Thallus linear, lanceolate, very much di- 
vided ; fringes divided. 
Fucus lanceolatus, With. Bot. Arr. 4, 104. 
¢. angustus. Thallus linear, very much divided; seg- 
ments nearly hairlike, very slender, compressed. 
y. spinosus. Thallus linear, compressed, much and irre- 
gularly divided, entirely covered with short, simple, awl- 
shape cilia. 
XXXVII. 62. GIGARTINA. Plum-weed. 
Thallus linear, compressed or cylindrical, very much 
branched, nearly of equal thickness throughout; sporidia 
in Bee tage tubercles, either lateral or terminal. 
a. Gelidium. YFhallus toothed on the edge, fringed ; tu-~ 
bercles roundish, on the marginal cilie. 
1. Gigariinus pistillatus. Pistilled plum-weed. 
Thallus cartilaginous, linear, compressed, irregularly 
two-forked; twigs “awlshape, rather two-rowed, horizontal; 
tubercles on the twigs, olobose. 
2B 2 
