396 EQUISETACE^. 



871. L. Selago, L. Fir Club-moss. 



Native ; in peaty bogs and damp places on commons. Very rare. 

 D. III. A single plant by one of the leats on Roborough Down, 1861. 

 IV. Three in a bog on Wigvor Do\vn, 1862. In fair quantity in a bog 



near Collard Tor, 1880. 

 V. One in a boggy spot in an enclosure by Crownhill Down, 1871. 

 Grows in greater quantity on a portion of Dartmoor beyond the area. 



EQUISETACE^. 



EQUISETUM, X. 



872. E. arvense, L. Corn-field Horsetail. 



Native ; in damp and clayey places by roadsides, in fields, and 



on low moist hedge-banks. Very common. April. Area 



general. 



The conmionest species, extending from the coast to the semi-moorland 



tracts. A form with the barren stems decumbent occurs in sand by 



Bigbury Bay. 



873. E. palustre, L. Marsh Horsetail. 



Native ; in damp meadows, marshes, and other moist places. 

 Rather common. May to September. 

 0. I. In the Seaton Valley between Hessenford and the coast. 



II. In a damp place in a field through which is the pathway from St. 



Johns village to the Millbrook and Tregantle Road. 



D. IV. In or about the marshes between Longbridge and Plympton 



St. Mary Church ; also in a meadow between Colebrook and 



Newnham. 



V, Yealmpton, and at Yeo in that neighbourhood. Yealm Vale, 



between Weston Mill and Lee Mill Bridge. Ford. Slade. 

 VI. Roadside at Sequers Bridge and near Ermington village, also 

 between it and Ludbrook. 



874. E. limosum, L. Water or Smooth Naked Horsetail. 



Native ; about drains in marshes, in wet meadows and swampy 

 places. Common. Part of April to June, or later. 

 c. I. Between Seaton and Hessenford. Sconner. Near Trerule. 

 Latchbrook. Notter Bridge. Cutmere. 

 II. Banks of the Tamar near Calstock (as var. flumatile) ; Keys, Fl. 

 iii. 289 ; I have seen both the forms near Weir Head. Swamp 

 in a wood between Hatt and Kingsmill. 

 D. III. Vale between Weston Mills and Houicknowle. Gawton, Beer 

 Ferrers. Near Tavistock. 



