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554 54.. Spongil. 2.THALASSIOPHYTiE. Pl.cell.aph,
Spongia rnniosa fluviatilis, Rail Syn. 30, 5.
SpongiUa rainosa, Lam. Hist, 2, 100.
Spongia lacuslris, Lin. Syst. Nat. 1, 1299.
Ephidaiia lacuslris, Lamour. Pol. 6.
Bottoms of lakes and ponds.
&. digitata, TliaUiis digitate, slightly branched.
Sijongia fluviatilis ramosa fragilif, Raii Syn. 30, 6.
y. gracilis. Tkallus and hranchss slender, branched.
Spongia canaliiim, Gmel. Syst. Nat. 1, 3S26.
EpJitdati.a canalium, Lamouroux, 6.
H. Spongidi.s. Thallus continuous, gelatinous, formed
of interlaced, flexnous, horny fibres or asbestine spiculae,
very porous, absorbing much water; spondia scattered in
the jelly of the thallus.— Yellow or brown, becoming white;
when dry tough and flexible.
XXX. Bo. TUPHA. Tiiphe.
Thallus fixed, roundish, solid, very porous, leaflike;
bi'anches simple or compound; formed of interwoven, bentj
horny, reticulated fibres, without any chalklike matter.
a. Bra?2ched, hranches simple or compound.
1. Tupha oculata. Eyelet iuphe..
Thallus much branched, soft; branches roundish, blunt,
dotted with marginal pores.
Spongia oculata, Ellis Corall, 80.
Sea-shore.
Thallus 9 inches high, bottom naked, tough, woody;
above branched.
^. elegans. Tkallus pale brown; branches divaricating
and closing together at top ; tips blunt, 4 or 5-cut.
2. Tupha stuposa. Towlike iuphe.
Thallus branched ; branches towlike, round, covered
Avith pointed hairs.
Spongia stuposa, Ellis Zooph, 186.
Spongia cervicornis, Pallas?
Sea-shore.
B. gracilis. Thallus very slender, beautifully white
branches ascending, very hairj'.
y. damicormis. Thallus palmate, divaricating, like the
antlers of a buck.