y6 The Scottish Naturalist. 



costati, ljeviusculi sed non evidenter vel tantum obsolete arti- 

 culati. Axis crassus pallidus, J — ; fibrillar medullares J — , 

 K flaventes dein rubentes. 



Ad rupes in New South Wales Australia) (Kirton). 



Another very distinct lichen, having also affinities to U. longis- 



sima, but differing, as may be observed, in various respects. 



Usnea punctulata sp. no v. — Similis U. cavernosa (Tuck.) sed 

 pallida vel pallide lutescens etiamque pallide rufescens. Axis 

 filiformis : fibrillar medullares K — C — ; J — . 

 Prope Punta Arenas Patagonia?, a cl. J. King lecta. 

 In U. cavernosa the thallus is glaucescent, while the axis is 



thickish and the medullary fibres are tinted yellow, or even orange 



by K. 



Usnea rubescens sp. nov. — Similis U. rubrottnctce (vide Scot. Nat., 

 Julio, 1881) sed pendula? vel prostrata, elongata (interdum 

 pedalis). Thallus cinerascenti-pallidus, passim rufo-ferru- 

 gineus. Axis mediocris vel crassus, pallidus, K passim rubro- 

 maculatus ; fibrilke medullares albida3 compacta3 J — , K 

 flaventes dein rubentes. 



Ad rupes in New South Wales Australia. 



This lichen tends to merge into a rufo-ferrugineous colour, 



especially after being retained for a time in the herbarium. 



At page 294 of Scot. Nat. for July, 1882, is described U.conwsa. 



As this name had previously been assigned by Acharius to a form 



of U. florida, it becomes necessary to change it. Let the Usnea 



there described be now called U. chcetophora. 



Under this I possess another from Australia which may be 



ranked as a sub-species. 



Usnea chatophora (Strn.), subsp. propinqua. — Similis typo sed 

 robustior, crassior et minus ramosa. Thallus pallescens et ad 

 ochroleucum mergens. 

 In Victoria Australian a cl. H. Paton lecta. 



Usnea protensa sp. nov. — Similis U. subsordidee (Strn.) sed robus- 

 tior et pendula, longitudine (*5-i)-pedalis. 

 Prope New Galloway Scotia) a cl. J. M 'Andrew lecta. 



Usnea lorea sp. nov. — Thallus albido-cinerascens vel sordide 

 flavescens, teres, elongatus, pendulus, acute ramosus et ramu- 

 losus, ramulis ssepe curvulis vel cirrhatulis concoloribus, sat 

 crebris, passim fibrillosis. Axis crassiusculus pallidus solidus; 

 fibrilhu medullares com pacta) alba) vel albidre, J caTulescentes 

 dein violascentes, K flaventes. Ad ramulos arborum in 

 Montibus Himalayis (Sikkim) a D lc G. Watt lecta. The blue 



