154 20. R. MACROPHYLLUS. 



6 glahratus; aculeis e basi maxima brevibus, foliis 

 quinatis, foliolis irregulariter vel subduplicato-dentatis 

 subtus in venis tantum sparsim pilosis, foliolo terminali 

 cordato-suhrotundo vel late obovato basi subcordato, 

 aculeis paniculse tenuibus, sepalorum apice ssepe foli- 

 aceo-dilatato (?). 



E. vulgaris y glahratus Kubi Germ. 38. t. 14. S? Bab. 

 Man. ed. 6. 111. 



This variety differs chiefly from var. ^ and y by the 

 nearly glabrous underside of its leaves and the remarkably 

 round form of the terminal leaflet, which is usually, but not 

 always, cuspidate. I have very little acquaintance with it, 

 and derive almost all my knowledge from a series of speci- 

 mens kindty sent to me by Mr H. C. Watson, who gathered 

 them near Long Ditton, Surrey. Two of these specimens 

 were named E. cordifolius by Mr Bloxam (in 1853), but 

 they do not agree with authentic specimens of that plant. 



Some doubt attends the identification of our plant with 

 that of Germany, for the leaves of the latter are said to be 

 soft beneath. 



Careful consideration and the examination of many 

 specimens has led me to the conclusion that all these plants 

 are probably forms of one variable species, notwithstanding 

 the rather considerable differences which exist between well 

 developed states of them. I am pleased to find myself con- 

 firmed in this opinion by a botanist of such eminence as Mr 

 Sonder (Fl. Hamh. 275) ; although he adds to the group, as 

 I think erroneously, the E. carpinifolius of the Euhi Ger- 

 manici. It is nevertheless quite possible that the error may 

 rest with us, and that the British E. carpinifolius is different 

 from that of Germany. The habit of our plant seems to 

 keep it quite separate from any form of E. macrophyllus. 

 E. umhrosus and E. Schlechtendalii are usually well marked 



