ON GYMNOMITKIUM OBTUSUM. 387 



HymenophyUum Wihoni, Hook.— Local. Muckish Mountain, 

 with Polypodium Phegopteru ; Drummonaghan Wood near Rainelton, 



Dean Gwynn. 



Botrychium Lunaria, Sw. — Local. Between Ramelton and Fort 



Stewart, by the side of the old road. Here, as in Fanet, in 

 company with Habenana nitidis. 



Ophioglossum hisitanicum, L.— I gathered this plant again on 

 Horn Head, fruiting in September, 1879. Specimens sent to Sir 

 J. Hooker and to Mr. H. C. Watson were pronounced distinct from 



(). ambigtmm of Orkney. 



Isoetes lacustris, L.— Rare. Aranmore, in Lough Shore. 



Lycopodium alpinwn, L.— Quite rare. Dooish Mountain, near 

 the summit to the westward. 



ON GYMNOMirBIUM OBTUSUM. 



By W. H. Peakson. 



GrYMNOMITKIUM OBTUSUM, 



Dioicous. When tufts crowded, stems erect, with branches few, 

 assurgent, ascending to height of chief stem; when tufts loose 

 stems prostrate, creeping; leaves closely clasping stem on both 

 sides; fertile stems increasing in size to apex, which is blunt and 

 swollen ; barren shoots catenulate ; leaves ovate, roundish ovate, 

 bidentate; segments round and obtuse, finely cmndate. 



Cesia obtusa, Lindberg in ' Meddelanden jf Sooietaa Pro Fauna 

 et Flora Fennica' (Helsingsfors), Feb. 3rd, 1877. 



Jmuiertnanilia yymtwmitrioides, Nees ? /?,,„,„„. 



Exsiccate. Gottsche & Baben., Hep. Eur. no 5 67, as tf^>- 

 mit,ium concinnatum, Card*. Carrmgton & parson Hep. Brit. Ex., 

 Fasc. I., no. 1, with (iymwmitrium eoncmnatiun ^ Corda 



Growing in the crevices of rocks, or on the baie exposeci or 

 shaded Tck, at an elevation of from a ewhundred feet (Glen 

 Finnan, Inverness) to 3f 70 feet (summit of Snawd^ 



Mardale V Westmoreland, ^ Geo ^ A . 



Inverness, July, 187B, Hi. Oamng ^ Merionethshire, 



shire, Aug., 1870, J. *1. bun, w Llanberis, 



July, 1870, W. HP. ; Aug f^es" Summit of Snowdon, 

 Carnarvonshire, Aug., l«/», fr.rr 7w UP * 

 June, 1880, J. E. Byrom, J. Nerfd, & W \H ^ ften le 



Plants growing in tutta of a ie ^ in f eS ^ ged dark coloured; 

 of a silvery polished appearance j where exposed, aa 

 where much shaded, with a greeni s h tinge. ^ 



Stems intricately entangled, t^ * inch ton ^ 

 outer layer of cells of a darker coloui and stron er 

 inner ones. ___— — : . ~ 



— — ' ~ f T" ,i,n t .ns from most of these localities to the 



* [Mr. l>ear,oii has presented! 8P«*"™?f _" m be found in our last number 

 British Museum Herbarium. Other localttfe. Wll 



(p. ai«).— Ed. Joukn. Bot.] 2 x 



