246 FLORA OF THE LAKE DISTRICT. 



1418. Isoetes lacustris, L. (Quillwort). Native. Highland 

 type. Range 1-2. In all the large lakes, and in many of the 

 mountain tarns. Wastwater, Ennerdale Lake, Crummock 

 Lake, Derwentwater, Windermere, Ullswater, Hawes Water, 

 Rydal Water, etc. Ascends to Stickle Tarn, 500 yards. — 

 (J. C. Melvill.) Codale Tarn (W. Matthews), and Floutern 

 Tarn (W. Wilson). 



ORDER MARSILEACE.E. 



1419. Pilularia globulifera,~L. (Pillwort). Native. British 

 type. Range 1. 



C. Pond at Nethertown. — (Whitehaven Cat.) Ennerdale 

 Lake. — (J. Robson.) 



ORDER EQUISETACE.E. 



1420. Equisetum maximum, Lam. (Great Mare's Tail). 

 Native. English type. Range 1. Damp woods. Not in- 

 frequent. Flimby, Whitehaven, Salter Hall, Parton, banks 

 of the Irt, Keswick, banks of the Eamont, etc. 



142 1. Equisetum umbrosum, Willd. Native. Scottish 

 type. Range 1. 



C. Eskatt Wood. — (Whitehaven Cat.) I fear a mistake for 

 E. maximum, which Mr. Hodgson tells me grows there abun- 

 dantly. 



W. Swindale. — (J. Backhouse.) 



1422. Equisetum arvense, L. (Common Mare's Tail; 

 Paddock Pipes). Native. British type. Range 1. Com- 

 mon by roadsides, and in cultivated fields, up to 300 yards. 

 — (Watson.) 



1423. Equisetum sylvaticum, L. (Wood Mare's Tail). 

 Native. British type. Range 1-2. Frequent in damp 



