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PLANTS CELLULOSE APHYLLE.^. 277
Subseries I. A. PLANTiE cellulosje aphylle^.
Fungi and Algce, Linnseus. GyncecicB, Stokes. AnandrcB^
Link.
Planls similar in all their parts, formed into an universal
receptacle, fhallus, or several partial receptacles, ihecce either
loose, or fastened to the place of growth by peltate or
fibrous holdfasts; absorbing their nutriment by their whole
surface. Propagation by budlike spores, which are generally
enclosed in sporidia, and these sporidia placed in or
upon the receptacles.
FAMILIES.
] . Aquatic or marine : thallus filamentous.^ or memlira-
naceous, ofteji gree7i. Algse.
Thallus tubular; plants aquatic, greenish ;
sporidia in the tubes HYDROPHYTE. 1.
Thallus fibrous, or netted ; plants marine
sporidia in thecse or in the thallus
THALASSIOPHYT.E. 2,
2. Terrestrial or parasitical : thallus crusfaceous, or leather-
like, green when wet, and grazed; sporidia enclosed in
apothecia of various co?istruction. Lichenes.
Thallus corklike or deshy;
apothecia dissimilar, covered SARCOTIlALAMEE. 3.
Thallus crustaceous or leatherlike
apothecia dissimilar, covered . . IDIOTHALAMEE. 4..
TA«//?/,? crustaceous or leatherlike;
5.
Thallus leatherlike or cartilaginous;
apothecia dissimilar, naked . . CGENOTHALAMEtE.
apothecia similar HOMOTHALAMEiE. 6.
S. Terrestrial or parasitical : thallus threadlike or ficshy,
not green, sometimes wanting. Fungi.
Thallus ; sporidia free, naked, or in
a simple theca PROTOMYCEE. 7.
Thallus threadlike, sometimes jointed
sporidia attached, naked NEMATOMYCEE. 8.
Thallus ; sporidia scattered in
a bladder-like theca GASTEROMYCEE. 9.