Download PDF

364 59.Deless. 2.THALASSI0PHYT^. Pl.cell.aph.
&. minor. Thallus very narrow.
Fncus hjpoglossoidt's, Stackfi. Ner. Brit. 176,
y. incrassifoUa. Thallus narrow, linear ; network scarcely
visible.
4. Delesseria alata. Winged delesser.
Thallus winged, repeatedly and alternately branched;
lohes confluent, decurrent, alternately branched.
P'ucus dichotomus parvus costatus et mcmbranaceus, Dilkn in Ravi Syn.
44, 20.
Fiicus alatus, Lin, Mant. 135 ;
Engl. Bot. 1S37.
Delesseria alata, Lamour. Thai.
Sea-shore; perennial.
/3. dilatata. Thallus broad ; wings broad, waved.
y. aiigustissima. Thallus very slender ; tvi/rgs very narrow,
scarcely any.
XXXV. 60. ODONTHALIA. Lyngbye. Sea-tooth.
Thallus fiat, membranaceous,, confluent, reddish; midrib
slightly prominent; edge toothed; sporidia in two lines on
solitary or clustered lanceolate marginal processes ; iheccef
pedicelled, wine-glass-shape. The thecse are by some
thought to be parasitic animals.
Odonlhalia pimiatijida. Vinnatifid sea-tooth.
Thallus branched, alternately pinnatifid; iivigs alternate,
toothed at the tip, teeth short.
Fucus dentaltis, Lin. Mant. 135.
Fucus piiinatifidus, Ft. Dan. 354.
Delesseria dentaty, Lamour. Thai 36,
Sphaerococciis dentatus, jlgardh Syn. 22.
Odonthalia dentata, Lyngbije Hydr. Dan. 9.
Sea-shore; perennial; autumn.
Thallus solitary, about 4' inches long.
XXXVI. 61. SPH^ROCOCCUS. Stackh. RoundfruH.
Thallus flat, membranaceous or coriaceous, confluent,
ribless ; sporidia in roundish tubercles ; theccB scattered
on the surface, or on the edge.
a. Dromius, Thallus membranaceous, ribless, itilerclesjlat
on the surface.
1. Sphcerococcus punctatus. Dotted roundfruit.
Thallus very thin, membranaceous, palmate, two-forked,
lobes linear, tip two-cut, blunt, edge flat, tubercles oblong.