a 
526 A FEW WORDS ON INDIGENOUS BARBARES. 
frequent. Poa maritima: Dunwich. Festuca pratensis and gi- 
gantea: frequent. Bromus erectus, B villosus: Dunwich. | Bra- 
chypodium sylvaticum: common. Triticum caninum and junceum : 
Dunwich, ete. T. repens, 8 littorale: Dunwich, etc. Hordeum 
pratense: frequent. H. murinum: common. Nardus stricta: 
heaths. Polypodium vulgare : with fine bifid and serrate varieties. 
Aspidium aculeatum: Heveningham, ete. A. lobatum and an- 
gulare: frequent. Lastrea spinulosa: Heveningham.  L. dila- 
tata: Prasenhall. JL. Filiv-mas: with the variety incisa, very 
fine. Athyrium Filiv-femina: Fast Bridge, Theberton. As- 
plenium Ruta-muraria: Eye Church. Scolopendrium vulgare: with 
several varieties. Blechnum boreale: heaths. Pteris aquilina. 
Equisetum Telmateia, palustre, and limosum. Chara aspera. 

A Few Words on our Indigenous Barbaree. By J. G. Baker. 
I had intended before this to have supplemented your obser- 
vations on Barbarea by a few remarks and suggestions relative 
to the indigenous forms or species that represent the genus in 
the British Flora. 
First there is B. arcuata (admitted as a distinct species by the 
German and French botanists, but now unanimously viewed in 
Britain as a variety only), which may be known from the normal 
vulgaris by its larger flowers, and slender, horizontal pedicels, 
and arcuate-ascending or spreading pods. 
Next comes B. vulgaris, as restricted by Reichenbach, Godron, 
etc., characterized by erecto-patent pods and arcuate-ascending 
pedicels, which is by far the most widely diffused form in this 
country. My notes record its ascent to fully 200 yards in 
both Teesdale and Wensleydale; and I have also collected it at 
300 yards near the summit of the Castlebar rocks near Settle, 
growing with <Alliwn complanatum of Boreau (A. carinatum, 
Smith, not Linn.), an elevation which will justify an average 
annual temperature of 45° being placed for the boreal limit of 
the species. 
Over and above these, there is a third form, with rigid, erect 
pods and peduncles, and smaller flowers than either of the pre- 
ceding, which I suppose to be what is alluded to by Mr. Borrer 
