38 THE BRITISH WILLOWS 



This description is mainly taken from the intermediate plant 

 raised by me in the garden (see British Willows, No. 87). Some 

 four plants of this have been found (1894-1906) in the valley 

 through which the Lochy Burn runs, near the Spital of Glenshee, 

 Perthshire. Europe : East Prussia ; Sweden. 



SALIX LAPPONUM X RETICULATA. 



Syn. S. sibyllina B. White ?, Kevision, 446 (leaves only) ; 

 quoted by Seemen, iv. 329. 



Exs. Hb. Edin. Bot. Gard. (from Loch Brandy, Clova, Greville, 

 1824) ?. Hb. E. P. Linton, No. 344 (S. Boydii ined.). The latter 

 plant is here described : — 



Salix Boydii, nov. hybr. Dwarf erect shrub, rigid, branches 

 thinly pubescent at first ; buds globose, light olive, then dark 

 brown, soon glabrous. Stipules none seen. Leaf-blades small up 

 to } in. long, rotund, usually cordate or subcordate, or rounded, 

 entire, rounded above or retuse, shortly petioled, dark green above 

 slowly glabrescent, rugose with veins deeply impressed, grey 

 beneath with dense persistent pubescence, veins much raised, 

 reticulate, thick, coriaceous, margin revolute. Catkins |— § in. 

 long, appearing with or rather before the leaves, ovoid at first ; 

 bracts obovate, rounded and blackened above, clothed with long 

 silky hair ; ovaries shortly ovoid in the young state, tomentose, 

 sessile ; nectaries solitary, linear, long ; style and stigmas fairly 

 long. 



This unique plant is very near S. reticulata in the leaf -blades 

 and very near S. lajwonum in its inflorescence, and it might be 

 assumed that X S. Boydii drew its origin from these two parents 

 only ; but there are two characters, the short petioles and the 

 short nearly round glabrescent buds, which neither of these satis- 

 factorily account for. These two characters suggest that a third 

 species, viz. S. herbacea, may have entered into its composition, 

 more or less remotely. 



S. sibyllina, described by Dr. B. White from leaf specimens 

 only, and thought by him to be S. lapponum x reticulata, matches 

 a plant from Glen Fiagh, Forfarshire (hb. E. F. Linton, No. 50), 

 which is almost certainly one of the numerous forms of S. herbacea 

 x lappomm. 



The new hybrid form, of which a description in Latin follows, 

 was found by Mr. Wm. Boyd in Glen Fiagh, and has been culti- 

 vated for some years at Faldonside. 



X Salix Boydii, nov. hybr. Frutex nana ramulis rigidis 

 novellis pubescentibus ; laminis |-f unc. longis subrotundis ad 

 basin cordatis vel rotundatis integris, mox glabrescentibus rugosis 

 venis supra impressis, infra griseo-pubescentibus venis elevatis 

 reticulatis, marginibus revolutis. Iulis |-f unc. longis, ? bracteis 

 obovatis supra rotundatis nigrescentibus, pilis longis sericeis 

 vestitis ; ovariis ovatis sessilibus tomentosis ; nectariis singulis 

 linearibus ; stylis et stigmatibus sat longis. 



Named after Mr. W. Boyd, who discovered it. 



