292 THE JOURNAL OF BOTANY 



culty of this investigation has been immensely increased by the 

 publication by different authors of the same plant under different 

 names, and of nearly one hundred species based on inadequate 

 material, which can probably never be determined. Much infor- 

 mation about the genus and its species will ultimately be obtained, 

 it is believed, however, by the systematic cultivation of these plants 

 at the Arboretum, although preliminary studies must be made in 

 the field. 



Since the autumn of 1899, 2469 lots of Crataegus seeds have 

 been planted here. Careful records are kept of each sowing, and 

 herbarium specimens are preserved, taken from the plant from 

 which the seeds of each sowing were gathered. About five hundred 

 lots of these seedling plants have now been permanently planted 

 out, but among these are many representatives of widely distributed 

 species raised from seeds gathered in different localities, in order to 

 show the existence of any variation that may occur in such species. 

 A comparative study of these cultivated plants when they are old 

 enough to flower and produce fruit should make it possible to dis- 

 tinguish the different forms, and to determine the value of the field- 

 work which has been done in this genus. 



PLANTS OF E. PERTH AND S. ABERDEEN. 



By Rev. E. S. Marshall, M.A., F.L.S., & W. A. Shoolbred, F.L.S. 



These notes are the outcome of a week's work at Blairgowrie 

 (E. S. M.), a week at the Spittal of Glen Shee, and nearly a fort- 

 night at Braemar in July, 1906. In such well-worked districts we 

 could not expect to find many novelties, apart from critical forms ; 

 for help in working out these we are indebted to Mr. Arthur 

 Bennett, Rev. E. F. Linton, Rev. W. R. Linton (who saw most of 

 the hawkweeds), Rev. A. Ley, and others. Supposed new vice- 

 comital records are starred. 89 = E. Perth; 92 = S. Aberdeen. 



Ranunculus Drouetii F. Schultz. 89. The plant at New Mill, 

 Lunan.Burn, mentioned in Fl. Perth, is not this species, but li. 

 heterophyllus, which also occurs in Fingask Loch. — R. Lingua L. 

 89. Stormont Loch ; locally abundant. 



Hadicula Nasturtium -aquatkum Rendle & Britten var. sii folia 

 (Reich.). 89. Near Ardblair Loch.— R.palustris Moench. 89. A 

 form with remarkably cut leaves, growing by Stormont Loch, may 

 be var. pinnatifida Tausch ; but we have seen no description. 



*Barbarea intermedia Boreau. 89. In fair quantity and fruiting 

 well by the Shee Water, below the Spittal, so that it bids fair to 



become established ; we do not know of any previous occurrence in 

 Scotland. 



Geranium sylvatiaim L. 89. Near the Spittal we found growing 

 with the type a few specimens which appear to agree with var. 

 Wanneri Briquet, a new variety for Britain, excepting the foliage. 

 In Rouy's Flore de France, iv. 81, it is thus described: "Feuilles 



