Some Observations on t lie Genus Rubus. l-i.' 



late & breviter unguiciilatis, prsecipue extus pubescen tibus; filamentis roseis vel 

 albidis, stylos roseos vel albescentes superantibus, raro gequantibus (in forma ad 

 Mjellby in Blekingia); an the ris glabris vel sparse pilosis (observ. ad Vestervik); 

 germinibus apicé barbatis; receptaculo sparse piloso. 



In our country, fhis species grows on mountain sides, faceing the south, 

 in brushwood, and in stony places. It is also mucb more common on the 

 easl coast, t lian on the west; and is to be met with in many places, in the 

 east of Skåne, also in many places on the eastern coast; particularly, in Ble- 

 king, and Northern Småland, as far as Stockholm. It is wanting in western Skåne, 

 but is to be found in the north of Halland at Malvik, and several places in 

 Bohuslän, and the south of Norway. In Bleking as well as in Östergötland, 

 this species also grows in certain places further inland. 



R. thy isoide us, in this country, bas always pink flowers, and sparsely 

 pilose germina. But, already on the island of Bornholm, situated south east 

 of Skåne, the white-flowered form is to be found (Frieder. & Gel. Ruh. exs. 

 Dan. & Slesv. n. 5). In our country, it remains constant, and can never be 

 confounded with any other species. It has also little inclination to change. 

 lipon poor soil it has very small leaflets, thicker, more irregularly serrate and 

 on the apper side light green; also a simple, racemose, leafless inflorescence 

 tf. macrior, Blytt, Norges Flora, pag. 1161). On the contrary, in rieh soil, 

 it gets a Compound, leafy inflorescence; and the leaves become larger, thinner, 

 daik green, and almost simply serrate. Only the shorter shoots, arising from 

 the Upper part of the stem. bear a more simple, leafless inflorescence. Mr. 

 Lindeberg, has distributed such a form, under the name of R. Grabowskii 

 (Herb. Bub. Scand. n. 31.). How far this form is identical with "Weihe's R. 

 Grabowskii, I do not know, but it is, however, certain that the Swedish form 

 is a luxuriant form of R. thyrsoideus, and, therefore, identical with the form 

 which 1 håve con-idored as a forma vegetior (Blytt. Norg. Flora, pag. 1 1 6 1 ). 

 The leaflets can, sometimes, be lacrniate (var in cisa., Lindeb. Herb. Rub. Scand. 

 n. 7.). In the shade, the leaves, like those of other biambles, get more or 

 lese jfreen. 



Tb"' vaiiahility. which R. thyrsoideus shows in this country, is, however, 



'•an easily he understood, not oi such a nature, that it could lead to the 



origmation of constant varieties, with the one exception mentioned later 



on. On the Scandinavian peninsula, this species nearly agrees with the 



form found in Den mark, also in north and easl Germany; so that any doubl 



