14? The Flora of Glamorgan. 



72. Myricacese. 



Myrica, Linn. 374. 



1384. Qale, Linn. Bog Myrtle. Madywydd, Gwyrddling, Mordywydd, 



Helygen Mair. 

 Rare. Abundant. Native. Ericetal, uliginal. 



Crymlyn Bog, in 1773. Lightfoot. J. of B. 1905. p. 301. 

 Llanishen ; Bryn Garw ; Llangynwyd. J.S. Twmpath, near 

 Porthcawl ; Fairwood Common. Miss B. Cefn Bryn ! Miss S. 

 Near Loughor and several places in Gower. T.H.T. Rhosili Down ; 

 Pontardulais. Ridd. 



73. CupuHferse. 



Betula, Linn. 375. 



1385. verrucosa, Ehrh. White Birch. Bedwen gyffredin. 

 Common. Abundant. Native. Sylvestral. 



Most of the records are for Betula alba in an aggregate sense. 



The records for the segregates Nos. 1385 and 1386 are unsatis- 

 factory. Three or more forms occur, and appear to me to be con- 

 nected with each other by intermediate types. The nomenclature 

 is likewise confusing. Further study is desirable. 



1386. pubescens, Ehrh. Common Birch. Bedwen gyffredin. 



This type certainly occurs frequently, and is probably abundant, 

 and perhaps common. 



Alnus, Linn. 376. 



'389. glutinosa, Medic. Common Alder. Gwernen. 



Common. Abundant. Native. Sylvestral, paludal. 



Carpinus, Linn. 377. 



1390. Betulus, Linn. Hornbeam. Oestrwydden gyffredin. 

 Local. Frequent. Alien ? Sylvestral. 



Llanishen ; St. Fagans. J.S. Merthyr district. E. and F. 



Killay to Pennard ; Neath ; Wenvoe ; Aberdare ; Llaniltern, 



Ridd. Perhaps native in wood near Sychnant Ravine ; often found 

 in hedges. Ed. 



Corylus, Linn. 378. 



139 1. Avellana, Linn. Hazel. Coll-lwyn. CoUen. 

 Common, .\bundant. Native. Sylvestral, septal. 



This polymorphic species still awaits analysis. 



