DUSEN: PATAGONIAN AND FUEGIAN MOSSES. 



8 9 



Gen. BRYUM Dill. 

 BRYUM BIMUM Schreb. 



Hab. Patagonia australis in territorio fontinali fluminis Rio Chico in 

 terra paludosa. 



Patagonia australis ad Lapataia in terra paludosa. 



BRYUM LAMPROCH^ETE Dusen n. sp. 



PI. IX, Figs. 13-15. 



Synoicum; dense intricate caespitosum, caespitibus inferne fuscis, superne 

 laete viridibus, sat expansis, humilibus, baud nitidis ; caulis strictus, erec- 

 tus, c. 1.5 cm. altus, fere tota longitudine radiculosus, radiculis atropur- 

 pureis, fasciculatis, inferne defoliatus, superne, praecipue apice innovando 

 ramulosus, innovationibus c. 3 mm. longis ; folia inferiora parva, sursum 

 raptim accrescentia, suprema dense conferta, siccitate gemmate conniventia, 



FIG. 1 6. 



rfl- 



a b c d 



Bryum lamprochate Dusen. a, folium, ^; b, sectio folii, 

 basales, ^i ; e, capsula humiditate, -^ ; /, capsula siccitate, J^. 



humida subrecta, usque ad 1.8 mm. longa et 0.5-0.7 mm. lata, stricta, 

 canaliculata, haud decurrentia, late oblongo-lanceolata vel ovato-lanceo- 

 lata, ob cellulas marginales elongatas, angustissimas, subtriseriatas sub- 

 limbata, marginibus reflexis, integerrimis vel apice denticulis paucis, re- 

 motis ornatis, carinate nervosa, nervo viridi, valido, basi 0.08 mm. crasso, 

 excedente, in foliis supremis cuspidate excurrente ; cellulcz laxae, pellucidae, 

 interdum parce chlorophyllosae, apicales subelongatas, interdum subrhom- 

 beae, basales paulum majores, rectangular, marginales angustissime elon- 

 gatae ; bractece perichcetii foliis caulinis supremis similes ; seta tenuis, stricta, 



