DUSEN I PATAGONIAN AND FUEGIAN MOSSES. 83 



clavata, c. 1.4 mm. longa et 0.6 mm. crassa; calyptra juventute rubella, 

 pilis hyalinis appressis vestita; cetera ignota. 



Hab. Patagonia australis in truncis arborum. 



Nearer to Ulota fulvella Mitt, than Ulota fuegiana Mitt., differing in its 



FIG. ii. 



- 



fo 



/ S 



Ulota hamata Dusen. a, folium, \ 2 - ; b, folium peribracteale, ^ ; c, apex folii, * ; d, cellulae 

 basales, ^p ; e , cellulse marginales e parte basali, ^p ; f, theca vetusta humiditate, if- g, phanero- 

 stoma, 2-%-S- ; h, j, folia perigonialia, -^. 



hamate leaves, being neither twisted nor crisp in the dry state, in its cla- 

 vate capsule and reddish calyptra with appressed hyaline, inarticulated 

 hairs. 



ULOTA FULVELLA Mitt. 



Hab. Fuegia australis ad Lapataia et ad Villarino in ramulis. 



Gen. MACROMITRIUM Brid. 

 MACROMITRIUM TENAX C. Miill. 

 Hab. Fuegia australis. 



MACROMITRIUM BIFASCICULARE C. Miill. in herb. 



Pi. IX, Fig. 5. 



Dense caespitosum, caespitibus expansis, summitate flavescentibus, 

 ceterum atro-rubiginosis ; cau/is repens, dense ramosus, ramis erectis, 



