136 [Appendix B.N.F.C., 



A few varieties have also to be withdrawn, and a few records require to be 



transferred to plants different from those under which they were published ; 

 these corrections are made in their proper place. 



There are a number of otber plants for which no recent record could be given 

 in Flora, and for the presence of which in the district now we cannot vouch, 

 although many of them have been specially sought for, for the purpose of this 

 Supplement ; and there are a few others which recent changes have driven from 

 former haunts. The refinding of these plants is much to be desired, so we draw 

 attention here to the more prominent of them. They may be subdivided as 

 follows : — 



(1) Plants of which we have reason to doubt the identification : — 



Leontodon hispidum. Gentiana amarella. 



(2) Plants which appear to have been not established in the district, and now 

 missing : — 



Sisymbrium sophia. Solatium nigrum. 



Sinapis nigra. Chenopodium rubrum. 



(3) Plants apparently destroyed through drainage ; these are mostly plants of 

 Lough Neagh basin : — 



Rhamnus catharticus. Carex elongata. 



Lathyrus palustris. C. filiformis. 



Slum latifolium. C. paludota. 



Epipactis palustris. Lastrea thelypteris. 



Cephalanthera ensifolia. Pilularia globulifera. 



(4) Plants apparently lost though building or cultivation : — 



Eleocharis uniglumis. Eordeum pratense. 



Schlerochloa procumbens. 

 Three other plants : — Hypericum hirsutum, Adoxa moschatellina, Carex 

 tnuricata, have become almost extinct owing to similar causes. 



(5) Plants not seen recently, but for whose absence no special reason exists : — 



Geranium sanguineum. Taxits baccata. 



Trifolium striatum. Calamagrostis epigejos. 



Pyrus aria. Poa nemoralis. 



Arctostaphylos uva-ursi. Polypodium dryopteris. 



Pyrola seeunda. Tolypella nidifiea. 



We trust that our drawing attention to the above may lead to the rediscovery 

 of some of them. 



Turning now to the second part of our work — additions to the Flora— we find 

 a considerable amount of new matter available, thanks to the diligence of a 

 number of northern botanists. The chief systematic investigations carried out 

 in our district since the publication of Flora have been the exploration of the 

 Mourne Mountains district for cryptogams by Mr. Lett, and for phanerogams 

 by the present writers ; and the examination of the valley of the Lower Bann 

 by Mrs. Leebody, Miss Knowles, and R. LI. P. The subjoined list shows the 

 various sources from which the material of the present Supplement has been 

 drawn. 



