Mr. "Woods on the British Species of Rosa. 185 



by it to seek this speciesof Rose among the last-mentioned family ; 



the permanence of the setae, and their insensible gradation into 



aculei, which never occurs among that tribe, will serve to correct 



the error. 



5. Rosa Doniana. 



R. ebracteata, caulibus setigeris, calycibus simplicibus, foliolis 

 duplicato-serratis utrinque hirsutis, aculcis strictis inaequa- 

 libus sparsis. 



Frutex bipedalis; in sepibus Sussexiae interdum etiam quinqiiepedalis. Rami svibdif- 

 fusi, fusci, aculeis rectiusculis horizontaliter pateiitibus, iuxqualibus, gracilibus, spar- 

 sis, tandem in setas immutatis iiistructi. Petioli villosi, glandulosi, atque interdum 

 aculeis minimis muniti. Stipulce lanceolato-lineares, glanduloso-serratae, tomentosEe, 

 subastjuales, sed interdum eae floribus propiores aliquantulum latiores, atque etiam in 

 bracteas parvulas immutatse. Foliola 7 vel 9, elliptica, inflorescentise propiora sub- 

 pauciora, par superius et foliolum impar ceteris majora dupiicato>serrata, utrinque 

 villosa, egiandulosa. Pedu7iculi solhaiW, cylindracei, setis insqualibus muniti. Re- 

 ceptacultim globosum, fusco-viridc, sctis fortibus armatuni. Calycisjoliola subulato- 

 lanceolata, elongata, simplicia, vel tantura hie illic lacinia filiformi instructa, petala 

 sequantia, villosa, setosa, recejitaculo viridiora. Floras expansi ; petala alba, obcor- 

 data. Styli inclusi, stigmatibus planiusculis. Fructus globosus, setosus : maturum 

 non vidi. 



Gathered by Mr. G. Don of Forfar, on the mountains of Clova, 

 and by Mr. Borrer by the water of Leith near Collington, also 

 near Albourn and Henfield in Sussex. 



I am very happy in the name of this species to have an oppor- 

 tunity of commemorating Mr. G. Don of Forfar, whose ability as 

 an indefatigable investigator of our indigenous botany is well 

 known, unfortunately now exerted no more. Mr. Don first ga- 

 thered this plant, and distinguished it from ft. involuta : and it 

 merits observation, that though he relied entirely on the habit of 

 the plant, all his specimens agree precisely with the artificial 

 character I have adopted. Besides the particular diflerences 

 pointed out under K. involuta, Mr. Don observed that the present 



VOL. XII. 2 B species 



