96 PATAGONIAN EXPEDITIONS I BOTANY. 



humiditate stricta, patentia, c. basi amplexicauli, baud decurrente, lata et 

 brevi raptim contracta, elongate cuspidata, canaliculata, apice rotundata, 

 marginibus integerrimis, erectis, nervo valido, basi o. 18 mm. lato, indis- 

 tincte limitato, infra summum apicem evanescente ; cellulce laxae, pellucidae, 

 parietibus teneris, basales rectangular, apicales ceteris multo breviores ; 

 cetera desunt. 



Hab. speciei Patagonia australis, ubi verisimiliter in territorio fontinali 

 fluminis Rio Chico lecta est. 



Nearest to Meesea austro-georgica C. Mull., differing from that species 

 by its entire leaves, its rectangular leaf-cells and non-excurrent nerve. 



The species is one of the most interesting of those brought home from 

 South America by Mr. Hatcher. Hitherto there were only two species 

 of the genus Meesea know from the southern part of the globe, viz., M. 

 austro-georgica C. Mull, from south Georgia and M. tmilleri C. Mull, et 

 Hampe from Australia. The M. patagonica is then the third species of 

 this genus known from the southern hemisphere. 



Fam. MNIACE.E. 



Gen. MNIUM Drill. 



MNIUM ROSTRATUM Schrad. 

 Hab. Patagonia australis in paludosis. 



Fam. RHIZOGONIACE^E. 

 Gen. RHIZOGONIUM Brid. 



RHIZOGONIUM MNIOIDES (Hook.) Schpr. 

 Hab. Patagonia australis. 



RHIZOGONIUM SUBBASILARE (Hook.) Schpr. 

 Hab. Patagonia australis. 



Fam. LEPTOSTOMACE^E. 



Gen. LEPTOSTOMUM R. Br. 

 LEPTOSTOMUM MENZIESII (Hook.) R. Br. 

 Hab. Patagonia australis. 



