DUSEN I PATAGONIAN AND FUEGIAN MOSSES. 



103 



Hab. speciei Fuegia australis, ubi ad Lapataia in consortio Sciaromii 

 depasti lecta est. 



A small and delicate species, very distinct, differing from all the other 

 South American species in its minuteness and in its perfectly elimbated 



leaves. 



FIG. 25. 



Sciaromium gracile Dusn. Folia, ^-. 



Gen. HYPNUM Dill. 



HYPNUM UNCINATUM Hedw. subspecies SYMMETRICUM Ren. et Card. 

 Hab. Patagonia australis. 



HYPNUM PERPLICATUM Dusen n. sp. 



PI. XI, Fig. 7. 



Densiuscule caespitosum, caespitibus expansis, superne sordido-viridibus 

 vel flavo-brunneis, inferne sordido-brunneis, rigidiusculis ; caulis subas- 

 cendens, plerumque c. 8 cm. interdum usque ad 15 cm. altus, apice falca- 

 tus, haud radiculosus, inferne defoliatus, sed nervis persistentibus foliorum 

 vetustorum plus minusque dense obtectus, simplex vel plerumque superne 

 saltern remotiuscule ramosus, ramis distichis et vix ramulosis ; folia dense 

 conferta usque ad 5.5 mm. longa et basi 0.9 mm. lata, uncinate falcata, e 

 basi sublineari vix decurrente elongate lanceolata, cuspidata, canaliculata, 

 longitudinaliter plicata, marginibus erectis, integerrimis, nervo valido, basi 

 0.25 mm. lata, sat longe excurrente, laevissimo ; cellules anguste elongate, 

 laevissimae, parietibus paulum incrassatis, alares sat paucae, omnino brevi- 



