EQUISETACE^ 309 



Asplenium Trichomanes L. (Shady rocks and walls.) 

 viride Hudson. (Shady rocks and walls in Alps and 



sub- Alps.) 

 sepientrionale Hoffm. (Siliceous rocks.) 



■ Adiantum nigrum L. 



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



Sub-sp. Onopteris Heufler 



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 Bemh. (Granite Alps.) 

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

 NotholcBna Maranta R.Br. (Walls near Locarno in Tessin.) 

 Gymnogramme leptophylla Desv. (In Tessin ; rare.) 

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



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



OSMUNDACE^ 

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



OPHIOGLOSSACE^ 



Ophioglossum vulgatum L. (Damp meadows ; rare.) 

 Boirychium simplex Hitchcock. (Engelberg, Chamonix.) 



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



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



lanceolatum Angstrom. (In Orisons.) 



virginianum Sw. (In Orisons.) 



MatricaricB Spr. (Val Onsemone ; Chamonix.) 



MARSILIACE^ 



Marsilia quadrifolia L. (Bonfol, Villeneuve.) 

 Pilularia globulifera L. (Very rare.) 



EQUISETACE^ 



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



praiense L. (Woods and pastures.) 



maximum Lam. (Damp, shady places.) 



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



palusire 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.) 



