408 90. Alector. 3. HOMOTHALAME M. PL cell. aph. 
1. A lector la 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 coraliinus saxaiilis foeniculaceus, Raii Syn* 
65 , 7 . 
Usnea jubata nigricans, Dill. Muse. 64. 
Lichen jubafus, Lin. S. P. 1622; Engl.Bot. 1880. 
Usnea jubata, Hoffm. Germ. 134. 
Parmelia jubafa, Achar. Meth. Licit. 272. 
Alectoria jubata, Achar. Lick. Univ. 592. 
On the trunks and branches of old trees. 
2. Alec foiia chalybeiformis. Iron-wire cockscomb-moss . 
Thallus and branches rather simple, bent, straggling, 
tufted, stiffish, lead black, lying down. 
Lichenoides quod Muscus caule rigido instar fili chalybei, Rail Syn. 
65 , 2 . 
Lichen chalybei formis, Lin. S. P. 1623. 
Lichen jubatus jS, Engl. Pol. 1880. 
Usnea irnplexa, Hoffm. Germ. 134. 
Usnea chalybei form is, Hoffm. Germ. 135. 
Parmelia jubata 8, Achar. Meth. Licit. 273- 
Alectoria jubata chalybeiformis, Achar. Licit. Univ. 595. 
On banks, palings, trees, and rocks. 
3. Alectoria sarmentosa. Runner cockscomb-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 Muse . 
59. 
Lichen sarmentosus, Achar. Prod. 180; Engl. Hot. 2040. 
Lichen dichotomies, Achar. Prodr. 181. 
Usnea dichotoma, Hoffm. Germ. 134. 
Parmelia sarmentosa, Achar. Meth. Lich. 271. 
Jtamalina sarmentosa, Achar. Lich. Univ. 595. 
On the trunks and branches of trees, and on rocks. 
Earn. IV. 4. CENOTHALAMEiE. Lichenes cenotha- 
lami , Acharius. Algarum pars , Linnaeus. 
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. 
