— 59 — 
43. Usnea barbata var. oxygona Miill. Arg. 
“Patagonia.” (Hedw. 34 : 139. 1895.) 
“thallus erectus, irregulariter sparsim ramosus et ramillosus, stramineo- 
albidus; rami primarii alveolato-inaequalis, acute angulosi et subsorediosi, minores 
tuberculoso-asperi.” 1. c. 
Type in the Boissier Herbarium, Chambesy. 
44. Usnea angulata var. paradoxa Zahlbr. 
“prope S. Amaro,” “Prov. Sao Paulo.” (Denksch. math, naturw. Klasse 
kaiserl. Akad. Wissen. 83 : 190. 1909.) 
“thallus rigidus, caespitosus, subpendulus, usque 15cm longus, crebre 
dichotome et sympodialiter ramosus, ramis primariis sat crassis, 1.5-1.8 mm 
latis, sordide lutescentibus, nitidulis, subteretibus, leviter areolatim impressis 
vel laevigatis, hinc inde transversim ruptis, punctulis sorediosis albidis obsitis, 
fibrillis pro maxima parte destitutis vel hinc inde fibrillis crebris, 3-8 mm longis, 
laevibus, transversim ruptis, simplicibus vel ramosis obsitis, ramis inferioribus 
divaricatis, ramis supremis assurgentibus et in apicibus seriatim globoso-sorediosis, 
soralibus glaucescenti-albidis, pulverulentis, usque 2 mm latis, ut plurimum con- 
fluentibus; strato myelohyphico albo, KHO e flavo rubente.” 1 . c. 
In the K. K. Naturhistorisches Hofmuseum, Vienna. 
45. Usnea poliotlirix Kremphb. 
“Lagoa Santa,” Brazil. (Lich. Brizil, Vidensk. Meddel. naturh. Foren. 
Kjobenhavn PL 1: fs. 5, 6 , 7, g. 4. 1873.) 
“Thallus cinerascens vel cinereo-rubens, erectus, teres, varie ramosus, ramis 
ramulisque laxis divaricatis, efibillosis vel paucis brevibusque fibrillis horizon- 
talibus, superficie asperula et medulla albida, pallido-cinnamomea. 
Apothecia parva vel mediocria, terminalia, concoloria, margine receptaculi 
fibrilloso-ciliato, disco plerumque concavo; sporae 8, breviter ellipsoideae vel 
subglobosae, incolores, long .0,011-013, lat. o.oo7-oo8mm.” 
= Usnea rigida Wain. 
= Usnea per cava f. asperrima Strn. 
= Usnea Baileyi Strt.?? 
46. Usnea punctulata Strt. 
“Prope Punta Arenas Patagoniae. ” (Scot. Nat. 7 : 76. 1883.) 
“Similis U. cavernosae (Tuck.) sed pallida vel pallide lutescens etiamque 
pallide rufescens. Axis filiformis: fibrillae medullares K-C-; J-.” 1 . c. 
47. Usnea radiata Strt. 
“Brasilia.” (Scot. Nat. 6 : 103. 1881-2.) 
_ “Similis infra U. ceratinae et papilloso-aspera sed supra ramosa ut in U. 
jlorida. Apothecia mediocria vel magna (latit. usque ad 15mm.) dense et longe 
fibrilloso-ciliata (fibrillis validis et ramosis), subtus hinc inde papilloso-aspera.” 
1. c. 
48. Usnea ceratina var. reagens Zahlbr. 
“ prope Theresiopolin. ” Brazil. (Sitzungsber. Kais. Akad. Wiss. Wien 
math-naturwiss. Klasse 3 : 430. 1902.) 
“Thallus pendulous, e basi ramosus, usque 14cm. altus, ramis primaris 
yalidiusculis, 2-2. 5mm. crassus, papillato-asperatus, KHO extus aurantiacus, 
intus flavo ferrugineo-rubens; disco apotheciorum KHO e flava aurantiaco.” 
1. c. 
In the K. K. Naturhistorisches Museum, Vienna. 
