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404 87. Usnea. 3. HOMOTHALAME^. PLcellaph,
y. h'lrta. Thallus slightly upright, rather shrublike, yellowish
grey, much branched, rather powdery, roilghish;
branches much divided, bent, intricate, slender, fibrelike.
S. Usnea larlala. Bearded usnea,
Thallus hanging, smooth, round, rather thick, pale
greenish grey; branches diverging, frequently fibreiike, hair-
like at the tip, beneath jointed.
Lichen barhatii?, Lin. Sp. PL 1622 ; Engl. Hot. 258, fig. 2.
Usnea barbata, Achar. Meth. Lich.SXb ; Lich. Univ. 624.
On the branches of old trees.
^. ankidata. Thallus bald, grey, branches long, forked,
branched, jointed; joints bellied^ separate; last twigs hair-
like, fibrelike.
Lichenoides quod Muscus arboreus nodosiis, Raii Syn. 65,4.
Usnea barbata articulata, Achar. Lich. Univ. 605.
Lichen articulatus, Lin. S. P. 1623 ; Engl. Bot. 258, fig. 1
C. Ramalinide^s:. Thallus cartilaginous, branched
inside stuffed with fibres like tow ; apotiiecia same colour
as the thallus, formed entirely from it.
IX. 88. CORN I CUL ARIA. Honi-moss.
Thallus cartilaginous, rather solid inside, towlike,
branched, shrublike; apotiiecia orbiculate, terminal, oblique,
shieldlike, entirely formed of the thallus, similar to its outer
surface, become convex and rather inflated ;
edge scarcely
distinct, slightly toothed^ at length turned back, slightly
altered in colon i'.
1. Corn'icularia tristis. Dull horn-moss.
Thallus pitch-black, compressed, cylindrical, rather
smooth, 2-rowed, 2-forked; branches even-topped, black
above ; apotiiecia plano-convex, brownish black, slightly
margined, edge not toothed, not cut.
Coralloides corniculauim, fuel (enuinris facie, Dillen Muse. 118.
Liciien radiatus, Jhtds. Fl. AngL 559 ; Dicks. Crypt. 9, 25.
Lifhen fucoides, Wulf. in Jacq. Coll. 3.
Lichen cornicr.latu?. Light/. Fl. Scot. 385.
Lichen rigidiis, Wulf. in Jacq. Coll. 2.
Lichen tristis, Engl. Bot. 720.
Lobaria rigida, Hoffm. Germ. 142,
Coniicularia tristis, Achar. Metli. Lich. 300; Lich. Univ. 610.
On rocks.
Apothecia sometimes radiately toothed, and the branches
tuberculated, toothed.