118 CARL SKOTTSBERG, A BOTANICAL SURVEY OF THE FALKLAND ISLANDS. 



17. Lagoon near Lovv Bay, Lafonia, about 1 — 2 dm. deep with a muddy 

 bottom. 



The rand zone was formed by a moist Cortoc^ena-association. In the water a 

 Scir'pus-Myrio'phyllum-ai9,&ociaAj\on. 



Soc. Scirpus riparius Sol. Agrostis magellanica 



Cop. Heleocharis melanostachi^s Callitriche antarctica 



Spårs. Myriophyllum elatlnoides Caltha sagittata (robust, forraiug pure mats). 



B. Buiining water. 



18. Small waterfall on Westpoint Island. — Plate X: 2. 



The bed of the stream was stony and bordered by rocks; all the ground, in 

 the water and on the banks, was overgrown with dense vegetation. In the bed were 

 swelling moss-cushions, över wich the water streamed, and carpets of mosses and 

 liverworts with a luxuriant growth of hygrophilous phanerogams, flanked it. Gunnera 

 7nagellanica-associa,tion. 



Coi).-soc. Gunnera magellanica Sol. Agropynim magellanicum Nassauvia serpcns (rare) 



Hierochloc magellanica Apium gfaveolens liubits geoides 



Cop. BlecJinum magellanicum Enargca marginata Senecio Darwinii f. 



» penna marina Galiimi antarcticum Sisyrincliium filifoliuni 



Spårs. Accena adscendcns Montia rivularis Veronica elUptica (seedliugs). 



Oxalis enneaphylla 



Association of ± submerse bryophytes: 



The rocks and stones, also the bed of the stream, were covered with a most 

 luxuriant growth of mosses and liverworts; in their cushions Montia and also Accena 

 occur: Bliyidia torrentiu7n Caud. n. sp. (abundant in the w?iter), Bry uni uvi dum C åhd. 

 n. sp., Hygrodicrayium falklaiidicutn Card. n. gen. et sp. (submerse), Rhacomitrium 

 subnigritum {± submerse), Sciaromium maritirnum (± submerse), Webera albicans, 

 alticaulis (submerse); Aneura cochleata (submerse), Chiloscyphus sp., Leioscyphus 

 ccquatus, Lophocolea falklandica, magellanica, symmetrica, Tylimanthiis Hallei. 



Another small stream on Westpoint Island had its bed nearly filled with mosses, 

 Callitriche antarctica and Rajmnculus pseudotrullifolius. 



I shall complete the list of aquatic bryophytes with the following notes on 

 some small brooks. 



A. Port Philomel, W. F. In the water: Drepanocladus lo7igijolius, Rhacomi- 

 trium la7nprocarpu7n (on stones); fringing the bed: Sciaromiu7n maritimum, Webera 

 albicans; Androcryphia conjluens, Chiloscyphus lobatus, Lepidozia blepharostoma, Lo- 

 phocolea vasculosa. 



B. Roy Cove, W. F. : Androcryphia conjluens, Lophocolea vasculosa, Pallavicinia 

 falklandica. 



C. Sparrow Cove, E. F. : Pse^idoleskea sordidoviridis Card. n. sp., Andro- 

 cryphia conjluens, Plagiochila obcuneata. 



