124 THE SCOTTISH BOTANICAL REVIEW 



Most British authors look upon AI. rubra as a species or variety 

 differing from M. sativa in its longer leaf-stalks, while Hudson 

 regarded his M. rubra as differing from that species by having 

 shorter petioles. Hudson should not therefore be cited as the 

 authority for the plant with longish petioles usually referred to as M. 

 rubra in British floras. — S. T. D. This is near to M. ocymiodora, 

 Opiz, in ' Naturalientausch,' No. lo, p. 22 (1823), but differs in the 

 exserted stamens, and the stem base nearly glabrous. — A. B. I agree 

 to this as M. rubra, Sm., and, according to my herbarium, it is the 

 usual British form, though I am aware that it is not quite like the 

 figure in ' English Botany,' ed. iii. M. rubra, as I know it, has 

 short roundish-ovate bracts, not so ovate or ovate-oblong as they are 

 figured. — E. F. L. 



'■'■ M, gentilis, L. Roadside ditch, near Malvern, Worcs., v.c. 37, 

 Sept. 9, 1910. — S. H. Bickham. I think that this is not typical 

 ge/itilis, which has calyx-teeth much more hairy, but rather var. 

 lVir/ge?iiana, F. Schultz, as it has the long-petioled leaves, stalked 

 whorls, etc., of that form. I see in Druce's ' List of British Plants ' 

 that this variety is placed under M. rubra, but I think that L'Abbe 

 Ch. A. Strail is right in regarding it as a form oi gentilis. — C. E. S. 

 M. gentilis, L., approaching var. Wirtgeniana in the subglabrous 

 stem and leaves and calyx thinly hairy, but failing in the points 

 L'Abbe Strail (' B. E.G. Kept.' 1887, p. 187) emphasised, e.g. 'the 

 floral whorls are all stalked, the lower ones with very long stalks, in 

 the variety.' This plant has the whorls mostly sessile, a few only in 

 the middle of the spike being shortly stalked. This is borne out by 

 Dr. Wirtgen's specimens of M Wirtgeniana, F. Schultz, No 4, 

 ' Herb. Menthar. Rhenan.,' ed. iii., which are also nearly glabrous 

 in foliage. — E. F. L. The Abbe Strail, in ' Essai de classification et 

 descriptions des Menthes qu'on rencontre en Belgique ' ('Bull. Soc. 

 roy. de botanique de Belgique,' xxvi. (1887), pp. 63-168) gives '(i) 

 Calice tubuleux, a dents longuement subulees, etc. {M. Wirtgeniafia, 

 Schultz) ; (2) Calice campanule et a dents plus ou moins courtes 

 {Al.genti/is, Smith).' He gives ^M JVirtgeniana = M. rubra, hej. et 

 Court., " Comp. fl. Belg. et Sm."' On the whole it seems to me, 

 judging by Strail's detailed descriptions, that this belongs to gentt/is. 

 —A. B. 



" Popuius \nionilifera\ $. Plantation at Glen Parva, Leics., v.c. 

 55, June 1 9 10. — A. R. Horwood. Not Populus monilifera. Ait. 

 {i']^V)) — P. deitoidea. Marsh. (1785), which is very rare in Britain, 

 even as a cultivated tree; nor is it P. 7nonilifera, Mich. fil. (=/'. 

 monilifera, Loud.), which is the common ' Black Italian poplar' of 

 cultivation ; but it seems to be P. virgifiiatia, Fougeroux (' Mem. Soc. 

 Agric. Par.,' 1787). I have not seen this description, but I think 

 this is the plant intended by Continental writers {e.g. Ascherson and 

 Graebner, ' Flo. Mitteleur.') by their P. virginiana. Some examples 

 of it in Kew Gardens are named P. maryla7idica ; but the description 

 of ' P. marylandica, Bosc.,' in Lamarck's ' Encycl. suppl. iv.' does not 

 fit the plant. This poplar does not appear in any of the British 



