564 
VII. LICHENE3. 
[ Usnea. 
2. U. angulata, Ach. ; — Bab. in FI. N. Z. ii. 269. Thallus as in U. bar- 
bata, var. dasypoga, but stems and branches angular and scabrous. — Nyland. 
Synops. Lich. 272. 
Northern Island, J. D. II., barren. (Australia, Madagascar, S. America.) 
§ 2. Neuropogon, Nees and Flotoio. — Apothecia black. 
3. U. melaxantha, Ach.; — Bab. in FI. N. Z. ii. 369. Thallus erect- 
straw-coloured or orange-yellow, often banded with black, rigid, dichoto- 
mously branched ; tops of branches slender, black, smooth or rough. Apo- 
thecia large, black. — Neuropogon, Nyland. Synops. Lich. 272. 
Lofty mountains of the Northern and Middle Islands, Colenso, etc. (Arctic and 
antarctic regions, Andes and Alps of Tasmania.) 
12. ALECTORIA, Ach. 
Thallus terete or compressed, erect or pendulous, filiform, intricately 
branched ; axis hollow or spongy. Apothecia usually dark-coloured, with a 
thalline border ; paraphyses not separating ; spores ellipsoid. Spermagonia 
with acicular spermatia. 
A small temperate, alpine, and arctic genus. 
1. A. ochroleuca, Nyland. — Evernia, Fries Bab. in FI. N. Z. ii. 
269. Thallus erect or prostrate, rigid, terete or compressed, smooth or laci- 
mose ; branches often black at the tips. Apothecia rufous or brown, nearly 
terminal on the subulate top of the branch, sticking out at one side of it. — 
Nyland. Synops. Lich. 281. 
Northern and Middle Islands, Colenso , Bidwi/l, etc. (Australia, Bourbon, N. hemi- 
sphere generally.) 
13. RAM ALINA, Ach. 
Thallus erect or pendulous, tufted, white or pale, compressed or leafy, laci- 
niate, the two surfaces alike. Apothecia scattered or marginal, pale, with a 
thalline border ; spores oblong, 1 -septate, usually curved; paraphyses sepa- 
rate. Spermagonia with branched filaments ; sterigmata with few articula- 
tions ; spermatia cylindric. 
A considerable genus, found in all latitudes. 
1. R. calicaris, Fries ; — Bab. in FI. N. Z. ii. 270. Thallus yellow- 
white, rigid, compressed, linear, laciniose, unequally divided, often channelled, 
never rigid and cartilaginous. Apothecia subterminal, plane. — Nyland. 
Synops. Lich. 294. 
Var .fraxinea. Thallus with long broad lacinife. Apothecia shortly pedicelled, marginal 
or lateral. 
Var .fastigiata. Thallus smaller ; lacinise compressed or terete, subfastigiate. Apothecia 
subterminal or terminal. 
Var . farinacea. Thallus covered with soredia. 
Var. Eckloni (var. membranacea , FI. N. Z. ii. 270). Thallus glabrous, membranous. 
Apothecia small. 
Var. linearis ( R . linearis, Ach, ; — FI. N. Z. ii. 270). Thallus small, narrow, flat, glabrous. 
Var . pusilla. Thallus short, fastigiate, subterete, inflated; branches obtuse. Apothecia 
terminal. — R. injlata, Hook. f. FI. Antarct. 194. t. 79. f. 1. 
