408 90. Alector. 3. HOMOTHALAMEZS. PI. cell. aph. 
1. Alectoria jubata. Mane cockscomb-moss. 
Thallus cylindrical, slightly shining, livid brown and 
black, compressed at the joints; apothecia of the same co- 
lour, growing convex, border not in the least cut. 
Lichenoides quod Muscus corallinus saxatilis feeniculaceus, Raii Syn. 
65,7. 
Usnea jubata nigricans, Dill. Musc. 64. 
Lichen jubatus, Lin. S. P. 1622; Engl. Bot. 1880. 
Usnea jubata, Hoffm. Germ. 134. 
Parmelia jubata, Achar. Meth. Dich. 272. 
Alectoria jubata, Achar, Lich. Univ. 592. 
On the trunks and branches of old trees. 
2. Alectoria chalybeiformis. Tron-wire cockscomb-moss. 
Thallus and branches rather simple, bent, straggling, 
tufted, stiffish, lead black, lying down. - 
Lichenoides quod Muscus caule rigido instar fili chalybei, Rati Syn- 
65, 2. 
: Lichen chalybeiformis, Lin. S. P. 1623. 
Lichen jubatus 6, Engl. Bot. 1880. 
Usnea implexa, Hoffm. Germ. 134. 
Usnea chalybeiformis, Hoffm. Germ. 135. 
Parmelia jubata 6, Achar. Meth. Lich. 273. 
Alectoria jubata chalybeiformis, Achar. Lich. Univ, 595. 
On banks, palings, trees, and rocks. 
3. Alectoria sarmentosa. Runner cockscoml-moss. 
Thallus rather cylindrical, angularly pitted, two-forked, 
pale. whitish, tips much branched, weak, very slender ; 
apothecia slightly concave, livid, hoary, afterwards spread 
out flat. 
Usnea loris longis dichotomis, extremitatibus tenuioribus, Dillen Musc. 
Lichen sarmentosus, Achar. Prod. 180; Engl. Bot. 2040. 
Lichen dichotomus, 4char. Prodr. 181, 
Usnea dichotoma, Hoffm. Germ. 134. 
Parmelia sarmentosa, dchar. Meth. Lich. 271. 
Ramalina sarmentosa, Achur. Lich. Univ. 595. 
On the trunks and branches of trees, and on rocks. 
Fam. IV. 4. CENOTHALAME. Lichenes cenotha- 
lami, Acharius. Algarum pars, Linnzeus. 
Lichenum pars, Jussieu. 
Thallus crustaceous or leatherlike; sporidia scattered, 
innate in the substance, and in a naked proligerous flake of 
a different colour placed upon the thallus, without any 
internal nucleus or perithecium.—Thallus perennial, ter- 
restrial or parasitic, greenish or becoming so when wetted ; 
absorbing water by the surface, and transmitting it to all 
parts. 
