46 SUMMARIES OF EAST RIDIXG PLANTS. 



have been expected from the similarity of physiographical' 

 and artificial conditions which obtains in the '^'orkshire and 

 Frisian areas. Both have much comparatively new land^ 

 river-made alluvium and tracts reclaimed from the sea, and 

 as a consequence there is a distinctly new facies about the 

 floras of both. 



LIST OF INCOGNITA, OR PROBABLY 

 EXTINCT PLANTS. 



Remarks, giving Reason fob Regarding as 

 Name. Incog, or Extinct. 



Polycarpon tetrapliyllnm ...In the old "Botanist's Cluide," possibly a 



mistake for Radiola linoides. 

 Impatiens noli-me-tanyere...At most an alien, even if once found at 



Market Weighton. 

 Latliyrus Nissolia In the old "Botanist's Guide,"' as found by 



Mrs. Wharton, near 8ij;glesthorne — not 



recently confirmed. 

 Latliyrus sylvestris One of Oliver's Beverley list — -we know 



nothing of it now. 



Rosa rubella A garden escape, not found now. 



Feucedanum palustro Incognit now, although Col. MaclieH's 



specimen from near Beverlej' is still in 



the York Museum. 



Galium anglicuin Not recently verified. 



Dipsacus pilosus do. do. 



Lysimachia tbyrsiHora Not recently verified. Teesdale was. 



doubtful, not having seen the plant 



himself. 



Rhinanthus major Possibly an alien importation at S. Cave. 



Ophrys muscifera A likely enough plant, but probably con- 

 fused with the bee orchis owing to its 



insect name. 

 Sparganium natans Not recently seen, drainage having e.\- 



terminated it. 

 Elisma (alisma) natans Not recently seen. Possibly an error 



ab initio. 



Carex Davalliana An error. Teesdale's plant in the York 



Mu.seum is not from Yorkshire. 



Carex elongata Extinct by drainage at Langwith. 



Carex axillaris Now extinct at Beverley owing to drainage. 



Alopecurus bulbosus Unknown now. 



Bronius racemosus Drainage has cleared away. 



Melica nutans One of Oliver's list, likely a slip for 



"unitlora." 

 Isoetes lacustris Extinct by drainage. 



