A CONTRIBUTION TOWARDS A FLORA OF BRECONSHIKE. Ill 



Syme. F. in cultivated ground. Doubtless common throughout 

 Wales, but, as yet, only recorded from two other Welsh counties. 

 — ^'A. dcltuidea Bab. Very rare ; carefully searched for, but only 

 four or five plants seen together, near Llangorse Lake. Eecorded 

 from no other inland county, and from only tAvo maritime counties 

 in Wales. — --A. timitJiii Syme. liemarkably rare. One large plant 

 on rock in Usk, between Brecon and Diuas. 



liumex com/lomeratus Murr. C. — H. nemorosus Schrad. Elan 

 Valley ; A. Ley. — Var. --a. riridis. C. — E. marithmts L. Very 

 rare. Observed one plant only on east side of Llangorse Lake. A 

 single plant had been previously found by this lake by Kev. A. Ley. 

 I am not aware of any other record for Wales. — R. obtusif oliiis Anct., 

 R. crispus L., and IL Acetosa L. C. — E. Acetosella L. Kock at 

 summit of Brecon Beacons, 2860 ft. ; A. Ley. C. 



Pohjgo7ium Convolvulus L. Nant-gwyllt ; A. Ley. Pen-y-wyllt, 

 Talybont. Builth. — P. aviculaie L. C. Several forms. — P. 

 Hydropiper L. C. Widely distributed. — P. Persicana L. Very C. 



— P. lapathi/olinm L. Nant-gwyllt; A. Ley. Bare. Shores of 

 Llangorse Lake, very sparingly. The rarity of this plant is note- 

 worthy. — *P. maculatum Trim. & Dyer. Shores of Llangorse 

 Lake. There is but one other record for AVales. — P. amphihium 

 L.* (the type). Canal, Talybont. Eiver Lynvi. Llangorse. — 

 Var. b. terrestre. Erwood; A. Ley. Llauthetty, near Talybont. 

 Llangorse. 



Empetrum niyrmn L. Blaen Taf-vechan ; A. Ley. 



Euphorbia Helioscopia L. Near Llanwrthwl ; A. Ley. Near 

 Builth. E. Pejjlus L. C. — E. exigua L. Partricio; A. Ley. 

 Not C. Llangorse. Near Brecon. — EL ainygdaloides L. Not seen. 



Mercurialis perennis L. Eemarkably abundant throughout the 

 county. 



Parietaria diffusa Koch. Scarce. Old walls, Brecon; plentiful. 



Urtica dioica Li. F. — ^'-JJ. urens Li. Apparentlj^ rather scarce, 

 and only seen near houses. Brynmawr. Llangorse. Builth. 



Humidus Lupulus L. Near Pen-y-wyllt ; A. Ley. Gilwern. 

 Talybont. Doubtless introduced. 



Ulmus suberosa Ehrh. Hedgerow, Grlyn Neath ; probably 

 planted ; A. Ley. — TJ. montuna Sm. F. — Var. c. nitida. Near 

 Builth ; planted ; A. Ley. 



Quercus sessiliflora L. Old natural woods, hillside, Nant-gwyllt ; 

 A. Ley. 



Corylus Avellcma L. Very common. 



Alnus glutinosa L. A. Ley. 



Betula alba L. C. — Var. b. ybitinosa. Near Pen-y-wyllt; A. Ley. 



Myrica Gcde L., and Junipems. None seen. 



Salix fragilis L. A. Ley. — S. Smithiana Willd. Near Brecon ; 

 A. Ley. — S.cinerealj. Elan Valley. Pen-pont ; A. Ley. — S. aurita 

 L. Cwm Tarell ; A. Ley. — -S'. caprea L. Nant-gwyllt; A. Ley. 



— S. repens L. Near Capel Coelbren ; A. Ley. — .S. Iwrbacea L. 

 On summit of northern precipice of Brecon Beacons, fine and in 

 some plenty, 1883 ; A. Ley. 



'''Taxus baccata L. F., especially in South and Mid Breconshire ; 



