8 
THE r.OTANICAL EXCHANGE GLUT. OF THE KRITISH ISLES. 
1900. On this plant Rev. W. M. Rogers sends me the following 
interesting note: — “The Bolston Wood plant seems nearer to R. Lettu 
than to R. crhiiger, being on the whole perhaps nearest to R. Gelertu, 
with R. Lettii between it and R. criniger. From the very constant 
Irish plant of Co. Down and Armagh it differs (? constantly) by closer 
pubescence on stem (in that one character most like criniger), the 
clothing of the stem of R. Lettii consisting of longer, looser, more 
conspicuously white hairs, ... by leaf more open and wide- 
spread, with felt on underside surface whitish instead of greenish-grey, 
and the terminal leaflet with longer, more gradually acuminate point and 
narrower base, the toothing also being deeper and more finely pointed; 
and by the much longer ultra-axillary panicle top. These characters, 
though taken one by one not very distinctive, when combined give a 
considerably different look to the two plants ; and each form seems 
constant to a remarkable degree.” The plant is abundant over a 
pretty large area in Bolston Wood. — Augustin Ley. 
Riibus melanoxylon, Muell. and Wirtg. Roadside, Bexley Wood ; 
also Crown Wood, Shooter’s Hill, W. Kent, 29th July 1901. — A H. 
Woli.ey-Doi). “A particularly interesting discovery; it was previously 
known in Britain only from Scotland, Wales, and Herefordshire.” Ed. 
R. infestiis, Weihe (“with abnormally narrow leaflets.” — W. M. 
Rogers). Near Abbeystead and Dolphinholme, v.-c. 60, West Lan- 
cashire, August 1901. — J. A. Wheldon. 
R. Drejeri, C. Jensen, var. hibernicus, Rogers, ‘ Handbook,’ p. 62. 
By the side of a lane, Tonaghmore, 27th June 1896; and roadside by 
an old mill, Saintfield, Co. Down, June and August 1898.— C. H. 
AVaddell. “ Named by Mr. Rogers, who considers it to be a sub- 
species, not a variety.” — Ed 
R. diinaisis, Rogers, ‘Journ. Bot.,’ 1901, p. 382. Aghaderg Glebe, 
Co. Down, luly 23rd and 27th, 1901. Coll. H. ^V. Lett; comm. 
\ S . Moyle Rogers. 
R. radula, Weihe, var. anglicanus, Rogers. The usual form about 
Bournemouth, S. Hants, July 26th, 1898; the same as represented in 
the set of ‘British AW.’— E. F. Linton. “A subspecies, according 
to Mr. Rogers.” — Ed. 
R. melanodermis, Focke. Branksome Park, Dorset, August 6th, 
1901 . — . Moyle Rogers. 
R. rudis, Weihe. Puddledock Wood, W. Kent, 16th July 1901. — 
A. H. Wolley-Dod. 
R. prccriiptoriini, Boul. Wood borders. Upper Sapey, Hereford- 
shire, 1 6th August 1901. Named for me liy Dr. Focke in 1899, “ A. 
GritJithianus, Rog.”; by Rev. W'. M. Rogers in 1901, “A’, prterup- 
toriim, Boul.” Mr. Rogers had the advantage of seeing a large series 
of this plant, and, judging from a comparison of Carnarvonshire speci- 
