Some Observations on the Germs Eubus. 141 



and fasc. XIII, n. 60, distributed forrns, which, as Mr. Neujian (1. c.) rightly 

 remarks, properly belong to R. insularis. The cause of this m i stake, if such 

 it can be called, is simply this, that. at that time, R. insularis had not been 

 distinguished, and that the forin which I, on the ground of its nearly complete 

 accordance with the english R. umbrosus, regarded as identical with 

 Arriienius' R. umbrosus, recedes very much from those specimens in Herb. 

 Norm, given under that name. Focke, on the examination of this species, had 

 already found, that it is identical with the North German R. villicaulis, and 

 during my travels last Stimmer, in Denmark and Sleswig, I convinced myself 

 that our species quite agrees with the form growing there, which the danish 

 Rubologists call R. villicaulis. I have had the opportunity, under the gui- 

 dance of Dr. Focke, of becoming acquainted with the North German form, at 

 Burg Lessum near Bremen, but this is separated from our form, by a more 

 contracted, racemose inäorescence, by scantier hairiness on the underside of the 

 leaves; also, by the flowering shoots being furnished with aciculi and glandules. 

 Also the R. villicaulis, which I have seen growing in Schlesian near Streitt- 

 berg, and even received from the late Professor Göppert — with the informa- 

 tion that it had been collected by Koehler himself — is separated from the 

 Suedish form, by its inflorescence being more racemous, and by its scantier 

 bairiness lipon the flowering shoots and under side of the leaves. They also 

 had not the feit, which distinguishes our form. The turiones of the North 

 German form, moreover, have more numerous and straighter prickles, and the 

 fruit seems to be much smaller. Mr. Lixdeberg identifies our species with 

 R. similatus, P. J. Müll.; an opinion, with which I can in no wise agree, 

 and which a comparison with Müller's description at once confutes. P. J. 

 Müller states (Jahresber. der Pollichia, pag. 115), that his species has a 

 pyramidical inHorescence, glandulous rachis and broad, oval, white petals. 



II. insularis is somewhat varying, as also might be expected sinco it is 

 rather frequent in the northwest of Skåne. As has already been remarked on 

 the preceding species, there aro many intennediate forms between these species 

 to Ijo found near Kullen. Mr. Neumax bas described no less, than five varieties 

 of K. insularis. They are, howcver, of littlc interest and can thercfore be 

 omitted. It may also be of use to remark, that in the one variety which 

 Neuma? calla vulnerans (Bot. Not. 1885, pag. 87), the feit is wanting on the 

 ander side of the leaves, even, wlien this form grows in open places. I pre- 

 sume therefore, that it is doscended from a shade form, particularly as Buch a 



