2l8 FLORA OK THE EAST RIOrNG OF YORKSHIRE. 



'856. Nardus striata. Lnm., 107. 



(Common Wheat-grass). 



Native, Brit., 6-7. July, II. 



Only in Derwent-land. Market VV'eighton sandfield 

 (J.J.M.) ;* Skipwith Common.* 



1858. Hordeum secalinum. Schrcb., 62. 



(vel. H. pratense, Hiids., Meadow Barley-grass). 



Native, Eng., i, 2. Aug. 



Near Dunswell, Hull;* Hilderthorpe (Dr. Hull). 



1859. H. murinum. Lnm., 78. 



(Wall Barley-grass). 



Native, Eng., i, 2. -^ug. , I. 



Very common near the Hull and the Humber. 



i860. H. marinum. Hnds., 27. 



(Seaside Barley). 

 Native, Eng., 2. '^"^•> '• 



Fairly frequent in the same localities as H. murinum, but 

 very sparingly in numbers (C.W.*); near Hedon, igoi (T. P.). 



1861. Elymus arenarius. Livn.,, 36. 



(Sea Lyme-grass). 

 Native, Scot., i, 2. -^"tC-i 1- 



Frequent on the coast sand-hills* ; Hornsea, Bridlington,* 

 Sand-le-mere, and Spurn.* 



FILICES. 



1866. Pteris aquilina. Lnm., 112. 



(Common Bracken). 



Native, Brit., 1-7. August. 



Common in occurrence, but except in some of the Der- 

 went-land woods not very plentiful in quantity; cultivation 

 seems more inimical to ferns than to many other plants. 



