EKMAN, NOMENCLATURE OF SOME NORTH-EUROPEAN DRAB^. 7 



J. Dickson on Ben Lawers and under the name of Draha 

 stellaia mentioned by him in Transaction of Linnean Soc. t. 

 II p. 288 (1793). In Flora Britannica p. 677 (1800) it is 

 called D. hirta by J. E. Smith, which name he also used in 

 English Botany 1804 where the plant is represented 

 vol. 19 tab. 1338. In August 1793 R. Brown collected this 

 plant himself and under his type specimens in the Nat. Hist. 

 Mus. in London he has noted locality, date and the name. 

 »D. stellata Jacq.?>> As to habit this Scottish D. rupestris 

 does not seem to vary very much, but on the contrary as 

 to the pubescence of the leaves. One of the specimens, in 

 the Nat. Hist. Museum, of which I made a sketch through 

 the microscope has a pubescence of both stellulate, forked 

 and simple hairs, the latter kind, however, in the majority. 

 With such a heterotrichous pubescence, though varying in 

 its combination, J. W. Hooker has described D. rupestris 

 in Flora Boreali-Americana I p. 53 (1840) which plant he 

 had gathered for many successive years on Ben Lawers. 

 With a heterotrichous pubescence it is also represented by 

 L. Reichenbach (in Icones Florae Germanicse tab. 4245), 

 though the stellulate hairs there seem to be dominant. 



I have, however, seen specimens from the same locality 

 (collected in September 1911 by Professor C. Lindman) on 

 which the stellulate hairs are quite missing and only bifurc- 

 ous and simple hairs occur. Upon such a specimen the 

 diagnosis of J. E. Smith 1. 1. c. c. was founded. x4s mention- 

 ed. Smith also has called the plant D. hirta. The fruit of 

 D. rujjestris also varies. Generally it is pubescent but some- 

 times also glabrous. The description of R. Brown includes 

 both the forms. He describes the fruit as hairy, such as it 

 is in most specimens. The characteristics of both forms 

 are: the lower growth — the tallest specimens 11 — 12 cm. 

 — the entire or slightly serrated leaves of the rosella, the 

 hairy stalk, which is leafless or only has a single leaf, the 

 pubescence of simple or bifurcous hairs in the rosulate leaves, 

 the upright or slightly patulate pedicels, which are shorter 

 than the ovate, lanceolate pods, the short style, the small, 

 white flowers and the hairy sepals. 



For the form which has stellulate hairs on the leaves. 

 I should like to propose the name of D. rupestris R. Brown, 



