24 The Flora of Glamorgan. 



Major ! and St. Doiiats ! It is so common, however, that one is apt 

 to forget that it has been recorded as rare and looked upon as a 

 doubtful native, and therefore its occurrence has not always been 

 definitely noted. It is often more abundant than the Charlock in 

 weedy cornfields in south-west Glamorgan. 



Diplotaxis, DC. 43. 



142. tenuifolia, DC. Narrow leaved Wall Mustard. 

 Local. Abundant. Denizen. Viatical. 



Near Llandur (Landore). Gutch in Phyt. 1842. p. i(j6. 

 Frequent. Penarth, etc. /.5. Common. Flora Rhondda. Grange- 

 town ! on old ballast. V. Common at Barry ! B. Barry District. 

 D. Porthcawl ! and Ely Common ! M.A.D. Sandy Shore at 

 Porthcawl. P. and N. The plant has every appearance of having 

 been originally introduced with ballast. It has established itself 

 thoroughly in a great many places, but never occurs far from the 

 original tipping places. It is very common on the embankments 

 and waste places about Penarth ! 



143. muralis, DC. Sand Mustard. 



Local. Abundant. Denizen. Viatical. 



Plentiful about Swansea. B.G. " Very common on the sand- 

 hills, and by the roadsides, and almost everywhere about the town, 

 oxcept on walls." L. W.D.Mat. Frequent. Penarth ! etc. /.5. 

 Common. Flora Rhondda. Common about Swansea. Woods in 

 Phyt. 1850. p. 1060. Barry. /. Porthcawl ! P. and N. Single- 

 ton. G.T. Caswell Bay ! Llandough ! Steep Holm ! This plant 

 occurs mixed with the former species at Porthcawl, is relatively 

 rare in the eastenr half of the County, and relatively common in the 

 western. 



Bursa, Weber. 44. 



144. Bursa=pastoris, Weber, Shepherd's purse. Llys tryfol. Purs y 



bugail. 

 Common. Abundant. Native. Viatical and agrestal. 



Coronopus, Rupp. 45. 



145. didymus, Sm. Lesser Wart Cress. 

 Local. Abundant. Native. Viatical. 



Llandwr Marsh common. Cadoxton and Fabian's Bay. Gutch 

 in Phyt. 1842. p. 106. Abundant about rubbish heaps and road- 

 sides at Swansea. L.W. D.Mat. Common about Cardiff. J.S. In 

 the Cardiff Museum there are specimens from Pwllypant (1877, 

 A. Langley), and Mumbles (July, 1834, Conway Collection). Bute 

 Esplanade, Cathays Park. V. Fairwater. /. Leckwith. M.A.D. 

 and N. Southerndown. N. Abercynon. IF. Coedriglan. G.T. 

 and H.E. Penarth ! Sully ! Caswell Bay ! 



