EQUISETACE^E 309 



Asplenium Trichomanes L. (Shady rocks and walls.) 



viride Hudson. (Shady rocks and walls in Alps and 



sub- Alps.) 



septentrionale Hoffm. (Siliceous rocks.) 



Adiantum nigrum L. } 



Sub-sp. nigrum Heufler V Sub- Alps and lower mountains. 



Sub-sp. Onopteris Heufler J 



germanicum Weis. (Rare.) 



Ruta-muraria L. (Rocks, walls, etc.) 



Pteridium aquilinum Kulm. (Woods, hedges, moors, etc.) 

 Pteris cretica L. (In Tessin, near Locarno.) 

 Allosorus crispus Bernh. (Granite Alps.) 

 Adiantum Capillus Veneris L. (Damp rocks ; rare.) 

 Nothol&na Marantcz R.Br. (Walls near Locarno in Tessin.) 

 Gymnogramme leptophylla Desv. (In Tessin ; rare.) 

 Polypodium vulgare L. (Rocks, walls, on trees, etc.) 

 Sub-sp. serratum (Willd. (Tessin and the Rhone Valley.) 



OSMUNDACE.E 



Osmunda regalis L. (Marshes in trans-alpine Switzerland.) 



OPHIOGLOSSACE^: 



Ophioglossum vulgatum L. (Damp meadows ; rare.) 

 Botrychium simplex Hitchcock. (Engelberg, Chamonix.) 



Lunaria L. (Alpine and sub-alpine pastures.) 



ramosum Aschers. (Near Altorf, etc. ; rare.) 



lanceolatum Augstrom. (In Grisons.) 



virginianum Sw. (In Grisons.) 



- Matricaria Spr. (Val Onsernone ; Chamonix.) 



MARSILIACE.E 



Marsilia quadrifolia L. (Bonfol, Villeneuve.) 

 Pilularia globulifera L. (Very rare.) 



EQUISETACE^ 



Equisetum sylvaticum L. (Woods in sub-Alps and Jura.) 

 pratense L. (Woods and pastures.) 



- maximum Lam. (Damp, shady places.) 



arvense L. (Fields, roadsides, etc. ; common.) 



palustre L. (Marshes and wet places.) 



limosum L. (Lakes, marshes, etc.) 

 hiemale L. (Damp woods and marshes.) 



ramosissimum Desf . (Sandy and stony places.) 



variegatum Schleicher. (Sandy places.) 



