220 FLORA OK THE EAST RIIMNC. OK YORKSHIRE. 



1 88 1. Ceterach offlcinarum. WilUL, 68. 



(Scale Fern). 



Native, Eng., 2, 3. Summer. 



Very rare, being only recorded in one or two stations : 

 an old wall in the village of Langton (M.B.S.). Mr. T. 

 Audas of Hull once got a tuft on Beverley Bridge. 



1882. Scolopendrium vulgare. Symons, lot. 



(Hart's-tonge). 



Native, Brit., 1, 2, 7. J"ly, I\'. 



Not common, and apparently vanishing. Nursery planta- 

 tion near Swine (G.N., 1850), 1890.* Skeffling Church 

 (H.J.W.); Near Withernsea (Mr. W. C. England); Lane 

 near Cottingham (G.N.) and (E.A.P.). 



18S9. Polystichum lobatum. Pirsl.. 104. 



(Prickly Shield-fern). 



Native, Brit., i, 2. Aug., II. 



Rare in the East Riding. \'ar. genuinum, Symc, between 

 Spring Head and Cottingham, and var. aculeatum, Syme, 

 in the same lane (G.N., 1880), where the author found one 

 specimen in 1899.* Only one other station is known for it, 

 namelv, on the side of a little beck near Leckonfield, where 

 it was iirst shown to me in Sept., 1897, by Mr. H. M. Foster ; 

 the specimen was var. aculeatum. 



1 89 1. Lastrsea Thelypteris. Prcsl., 43. 



(Marsh Buckler-fern). 



Native, Eng., 1-7. 



In bogs ; very rare. Heslington fields by Silvanus 

 Thompson Senr. (W.W.) ; Pulfin Bog. 1897*, not yet found 

 with sail in this station. 



1892. L. Oreopteris. PirsL, 102. 



Native, Brit., 6, 7. July, I\'. 



Woods at Eskrick (B.) ; infrequent on Skipwith Common 

 (W.N.C.) ; Houghton Moor.* 



