2,6 The Flora of Glamorgan. 



century. Hence he regards it not only as " perfectly naturalized," 

 but as much of a native as many plants which appear in our floras. 

 Its natural range is " over France to the English Channel." L.W.D. 

 Mat. Common about Cardiff Docks, etc. J.S. Common. Blaen- 

 rhondda to Forth. Flora Rhondda. Waste ground about Cardiff. V. 

 Barry ! B. and D. Hirwain and Aberdare. W. Merthyr District. 

 F. Fenarth ! to Cardiff ! on railway embankments. Watson 

 classes this species as an alien. The plant appears to furnish a case 

 of a ballast plant which has adapted itself thoroughly to its new 

 environment. 



Thiaspi, Linn. 47. 



153. arvense, Linn. Field Fenny Cress. 



Rare. Scarce. Colonist. Agrestal and viatical. 



Wych Tree Bridge (Dillwyn). Giitch in Phyt. 1842. p. 106. 

 By the roadside between Wychtree Bridge and Llangyfelach, and 

 several other places. L.W.D. Mat. Llanishen. H.E. Rare. Tem- 

 perance Town and occasionally on ballast. J.S. Cardiff Museum 

 Specimens exist labelled Tyndall Street, Cardiff, 1877, Artillery 

 Range, 1877, Roath Fark, 1892. Fenarth Dock ! probably on old 

 ballast, 1905. Cornfield near Dinas Fowls Common! nth June, 

 1892. St. Hilary. G.T. Kymin ! 1907. 



155. alpestre, Linn. Alpine Shepherd's Furse. 

 Rare. Scarce. Native. Rupestral. 



About Font-nedd-Vechan and Aberpergwm. B.G. This locality 

 is repeated in L.W.D. Mat. and by Giitch in Phyt., 1842, and by G.T. 

 Recent records accompanied by specimens are very desirable. 



Iberis, Linn. 48. 



156. amara, Linn. Bitter Candytuft. Beryn chwerw. 

 Local. Scarce. Alien. Viatical. 



Dusty Forge, Fontypridd. Outcast. J.S. On cliffs near Swan- 

 bridge, where it maintained itself for several years. The University 

 College Herbarium has a specimen marked 1891. Flant apparently 

 extinct, 1905. 



Teesdalia, R.Br. 49. 



157. nudicaulis, R.Br. Shepherd's Cress. Beryn coesnoeth. 

 Local. Scarce. Native. Rupestral and glareal. 



Not infrequent about Swansea. B.G. Occasionally found about 

 the sand-hills and roadsides. L.W.D. Mat. Gutch in Phyt. 1842, has 

 the same note. Recent records are desirable as the plant does not 

 seem to occur in West Glamorgan. The Editor has collected it on 

 limestone rocks near Crickhowell, Breconshire, a district not included 

 in Topographical Botany, 2nd edition. 



