CONTENTS OF VOL. XXVIII. 



Proceedings for Session 1919-1920 .... 



Do. do. 1920-1921 .... 



Do. do. 1921-1922 . . 



Do. do. 1922-1923 .... 



The Pharmacopoeia of another Botanical Physician. 



Hon. William Renwick Riddell, B.Sc, LL.D. 

 Additions to the Flora of Orkney, as recorded in 



"Topographical Botany," Second Edition (1883). 



H. H. Johnston, C.B., C.B.E., D.Sc, F.R.S.E., F.L.S. . 23 



Observations on " Notes on the Flora of the Orkney Isles. By 



Arthur Bennett, A.L.S." By Col. H. H. Johnston, C.B., 



C.B.E., D.Sc, F.R.S.E., F.L.S 43 



Corrections to " Notice of some of the Rarer Plants observed in 



Orkney during the Summer of 1849. By John T. Syme, Esq." 



By Coi. H. H. Johnston, C.B., C.B.E., D.Sc, F.R.S.E., F.L.S. 46 

 A new Species of Phomopsis Parasitic on the Douglas Fir. By 



Malcolm Wilson, D.Sc, F.R.S.E., F.L.S. . . . '. 47 



Additions to the Flora of Orknej% as recorded in Watson's " Topo- 

 graphical Botany," Second Edition (1883). By Col. H. H. 



Johnston, C.B., C.B.E., D.Sc, F.R.S.E., F.L.S. . . . 51 



Some Moss Records from St Kilda. By William Evans, F.R.S.E. 67 

 Craigia, a new Genus of Sterculiaceae. By W. W. Smith, M.A., 



and W. Edgar Evans, B.Sc. (Plate I.) . . . .69 



Pyrola rotundifolia, Linn., in Caithness, with Notes on the Genus. 



By Aithm- Bennett, A.L.S 71 



Vaccinium myrtillus, Linn., var. jjygnuieiis, Ostenfeld, f. micro- 



phylla, Lange, in litt. to Beeby. By Arthur Bennett, A.L.S. 75 

 Presidential Address — Agricultural Botany in the Past Fifty 



Years. By W. G. Smith, B.Sc, Ph.D 77 



Note on a Seedling of Cytisus Adami. By T. Bennet Clark, C.A. . 84 

 Salicornia dolichostachya. Moss, in Scotland. By E. J. Salisbuiy, 



D.Sc, F.L.S 87 



Notes on Pinguicula. By Arthur Bennett, A.L.S. ... 87 



