474 the botanical exchange club of the BRITISH ISLES. 
andra, L., and S. viminalis, L , and represents very well the middle 
form of the hybrid, S. hippophaifolia, Thuill., which is placed by 
Anderson between S. Trevirani and S, inollissima, the more one- 
sided forms. It has the peculiarity of catkins which are male in 
the lower and female in the upper-half. It is not uncommon to 
find hybrid willows which are androgynous, the stamens aborted 
and producing small ovaries on the top of the filaments in place of 
anthers ; in this River Wye plant both kinds of flowers are perfectly 
developed in the order above mentioned. — E. F. Linton. 
Salix alba, L., X ? Right bank of the Wye, Foy, Hereford- 
shire, a single bush, May 25 and September 6, 1909. Close beside 
a single bush of S. viridis, Fr., and strikingly contrasting with it in 
habit ; S. viridis having the spreading stiff branches of 6’. fragilis, the 
present plant being of close upright growth with slender twigs ; 
flowering very little, and the incipient ca])sules withering early and 
falling off — Augustin Ley. A very interesting form of 6". viridis, 
Fr., with the habit and slender twigs of A", alba, L., and leaves, 
catkins, &c., fairly intermediate between S. alba and S. fragilis. 
The leaves are too glabrescent for any form of S. alba, and the 
ovaries too slender or long in proportion to their breadth. The 
short styles and the coequal nectaries and pedicels are fairl\ normal 
for the hybrid. The adjoining bush of S. viridis appears to have 
the habit of S. fragilis, but probably has some compensating leaning 
in other particulars towards the other parents. — E. F. Linton. 
Salix Doniana,^^)^^. = S. purpui-ea X repens} By the Cherwell, 
the Parks, Oxford, Sept., 1909. Formerly grown in the Salicetum 
at the Botanic Cardens, then removed to this locality. The labels 
of these Willows are now mostly lost or misplacetl. I thought 
members might like to have this rare plant which was shewn me 
by the late Mr. W. H. Baxter as being the one sent by Borrer to 
his father Mr. W. Baxter, the author of ‘ Phaenogamous Botany.’ — 
G. C. Druce. a leaf specimen only. If this were the plant 
received by Mr. Borrer through Geo. Anderson from G. Don, 
and supplied by the former to Sir J. E. Smith for description, good 
specimens would no doubt be welcome. The descriptions of that 
plant are very precise from ‘ Sm. Engl. FI.,’ iv, 213 to ‘ Syme, E. B ,’ 
(3rd ed.), viii. 219 ; garden specimens are preserved in Hb. Borrer 
at Kew ; and also widely distributed through well-known sets, for 
there can, I think, be no doubt that Leefe’s, ‘ Sal. Exs.,’ iv. 99, and 
our ‘ Set of British Willows,’ N. 6, are actual descendants of 
Borrer’s plant. I have garden specimens by me from four diftefent 
gardens, and can make allowance for such variation as can be 
caused by wet and dry ground, exposure and shade : but it is 
impossible to identify the Oxford plants with S. Doniana, Sm., 
nor do I think there is any S. repais in it, but ox\\y‘ S. purpurea, 
