Hos 
by 
216 CRYPTOGAMIA ANTARCTICA. | Puegia, the 
5. Usnea florida, Ach.; Lich. Univ. p. 304. Engl. Bot. t. 872. 
Has. Chonos Archipelago, on trees ; C. Darwin, Esq. 
A plant evidently impatient of perennial cold ; inhabiting none of the Antarctic islands south of New Zealand 
and Tasmania in the Old World, nor of the Chonos Archipelago in the New. In the northern regions, again, 
it does not pass the wooded regions (63? N.), in America, or reach Lapland in Europe. 
2. EVERNIA, Ach. 
1. Evernsa Magellanica, Mont.; in Voy. au Pole Sud, Bot. Crypt. p. 198. 
Haz. Strait of Magalhaens; D'Urville and Jacquinot. 
A very beautiful and distinct species, which I have seen from no other locality than that indicated by Montagne. 
3. RAMALINA, Ach. 
1. RAMALINA scopulorum, Ach.; Lich. Univ. p. 604. Engl. Bot. t. 688. 
Var. a. thallo 1-1} pollicari lineari rigido polito utrinque glabro, apotheciis plurimis primum concavis 
demum convexis marginibus reflexis. R. verrucosa, 2۵0, in Lond. Journ. Bot. vol. ii. p. 655. 
Var. 8. thallo fastigiato sub 2-pollicari cartilagineo pallide stramineo lineari v. lineari-obovato laciniato 
polito obscure lacunoso hic illic terebrato apicibus sub-acutis, apotheciis nullis. 
Var. y. thallo elongato 2—6-unciali rigide cartilagineo planiusculo v. lacunoso parce pruinoso pertuso 
laciniis 4 unc. latis lobulis acutis, apotheciis nullis. 
Var. 8. thallo flavo dense fastigiato lineari-ligulato 1-5-unciali laciniis flaccidis nunc pertusis pluries 
divisis acuminatis glabratis punctisve pruinosis sparsis, apotheciis nullis. 
Var. e. omnia varietatis ô., sed rigida, apotheciis apices versus laciniarum confertis corrugatis plerisque 
monstrosis. 
Var. ¢. terebrata; thallo elongato 8 unc. ad pedalem flaccido lacunoso et corrugato pertuso pruinoso 
v. glabrato, margine integerrimo eroso lobulato v. prolifero, apotheciis nullis :—inter var. y. and 8. media 
sed statura proceriore. R. terebrata, nob. in Lond. Journ. Bot. vol. ii. p. 654. 
Var.n. truncata; fastigiata, thallo cuneato in lacinias breves truncatas flabellatim expanso laciniis 
pertusis pruinosis griseis apicibus involutis :—an forma incompleta ? 
Has. Var. a. Dry quartz rocks, Falkland Islands. Var. 8. and y. Dry rocks, chiefly of clay slate, 
Falkland Islands. Var. 8. Falkland Islands and Cape Horn; on rocks near the sea. Var. e. Dry granite 
rocks, Cape Horn; Kerguelen's Land, Anderson. Var. ¢. Falkland Islands; on moist exposed rocks, near 
the sea, most abundant. Var. y. with var. ¢. but in more shady places. 
On these varieties, or rather forms, we are enabled to offer the following observations :— 
The var. a. is exactly the English R. scopulorum, and the only one which produces perfect fruit in the Falkland 
Islands. Var. 8. is found in New Zealand, and in fruit; also abundantly in Brazil. Var. y. and ¢. are scarcely 
distinguishable from R. fraxinea of Norfolk: small specimens exactly resemble R. membranacea, Laurer, of New 
Holland; it is a very common form in the Southern Hemisphere. Var. 6. is very similar to the Uraguay 
R. prolifera, of Taylor. Var. e. is a small form of a Chilian variety. The var. y. inhabits Chiloe, and approaches 
near to R. pollinaria. 
