DUSEN I PATAGONIAN AND FUEGIAN MOSSES. 



purpureum, vernicosum; sporce 0.021-0.027 mm. magnae, laevissimae; 

 cetera ignota.- 



Hab. Patagonia australis. 



Nearly of the same appearance as Bryum lamprochtete Dusen, but well 

 distinguished from that species by its stem being simple above, its nar- 

 rower, more densely and more elegantly lamellated external peristomial 

 teeth which are glabrous above, and by its exactly conical and shining 



FIG. 17. 



b <= e 



Bryum vernicosum Dusen. a, folium, ^ b, cellulae apicales, *f> ; c, cellulse basales, 

 humiditate, e , theca siccitate, ; /, folium perigoniale, J^. 



f 

 ; d, theca 



operculum. Besides, the Bryum vernicosum is dioecious, the Bryum 

 lamprochcete syncecious. 



Our species seems to be related also to Bryum minuscuhtm C. Mull., 

 concluding from the diagnosis, but differs from that species by the ab- 

 sence of innovations, by its always pendulous capsule, the wider cells of 

 its leaves, its much shorter cuspidate leaves, and by its perichastial leaves. 



BRYUM RIGOCH/ETE Dusen n. sp. 



PI. X, Figs. 3, 4. 



. Synoicnm ; dense caespitosum, caespitibus inferne fuscis, superne viridi- 

 bus, haud nitidis ; caulis c. 2 cm. altus, strictus, ad medium atropurpureo- 

 radiculosus, inferne defoliatus, simplex vel fertilitate superne innovando 

 pauci-ramosus ; folia sicca appressa, humida suberecta, c. 2.7 mm. longa 

 et 1.2 mm. lata, haud decurrentia, ovato-oblonga, leviter incurvata, acuta, 

 apicibus strictis vel paulum reflexis, subcochleariforme concava, margini- 

 bus integerrimis reflexisque, carinato-nervosa, nervo rubescente, valido, 



