The Flora of Glamorgan. 185 



Elymus, Linn. 513. 



1 86 1, arenarius, Linn. Sand Lyme-grass. Amdo-wellt. 

 Rare. Scarce. Colonist ? Littoral. 



Swansea; (Moggridge), Port Talbot. Ridd. Porthkerry. J.S. 

 The status of this plant is marked doubtful, as all these localities are 

 places where aliens might be expected. I have searched in vain for 

 the plant and have never seen it anywhere in Wales. Moreover, it 

 is a grass that is not likely to escape notice. Probably a casual. Ed. 



93. Filices. 



Hymenophyllum, 5m. 514. 



1862. tunbridgense, Sm. Tunbridge Filmy Fern. Rhedynach teneuwe. 

 Rare. Scarce. Native. Rupestral. 



Pont Nedd Vechan. L.W.D., B.G. Bryncous, above Cadoxton 

 Village. L.W.D. Mat. Melincourt waterfall. Westcomhe and Young. 

 Newman's Hist. Brit. Ferns, p. 299. Pencaedrain ! growing with 

 H. unilaterale, 1892 to 1905. U.C. Hb. This locality was recently 

 wiped out by quarrying operations. Ed. Dimbath Valley, near 

 Black Mill. Miss B. Near Abertridwr. J. 8.(2). The last record 

 may be for 1863, as it is fairly evident that Storrie never learned to 

 distinguish the two segregates. 



1863. unilaterale, Bory. Wilson's Filmy Fern. 

 Local. Plentiful. Native. Rupestral. 



Melincourt Glen and Perddyn Glen. E. Young. Newman's Hist. 

 Brit. Ferns, p. 299. Cwm-cidy. /. /. Neale and T. W. Proger. 

 Dimbath Valley, near Black Mill, rare. Miss B. Rhondda Valley ; 

 near Pentre ; above Blaenrhondda ! and near Llyn Vach ! J.S. All 

 recorded under H. tunbridgense, but doubtless referring to this 

 species. Ed. Daren Bwllfa ; Cwm Selsig. Ridd. Craig-y-llyn ! 

 from 1892 onwards, abundant ; Pencaedrain ! Graig fawr and Graig 

 fach, Cwmparc ! Craig-y-bwlch ! and other places on the Pennant 

 Grit escarpments. Ed. Dr. Alfred Russell Wallace told me in 1909 

 that the Hymenphyllum formed great masses, clothing the rocks in 

 the Upper Neath Valley when he was surveying for the Neath and 

 Merthyr Rail. Co. in 1842. T.H.T. 



Adiantum, Linn. 516. 



1865. Capillus-Veneris, Linn. Maidenhair. Briger Gwener, Briger 



Gweno. 

 Local. Frequent. Native. Rupestral. 



Nine-acre cliff — half-a-mile from Porthkerry Church ; Nash 

 Point ! Lightfoot. J. of B. 1905. p. 299 and 300. " Growing very 

 plentifully out of a marly incrustation both at Barry Island and 



Porth Kirig and out of no other matter." Letter of Ed. Llwyd. 



Nov. 24th, 1696. Phyt. 1855-56. p. 268. Phil.Trans. Vol. VI. 

 1 7 1 3. p. 20. Common on Lias cliffs at the eastern end of the county ; 



