REPORT FOR 1914 OF THE BOTANICAL EXCHANGE CLUB 89 



REVIEWS. 



Beport for 1914 of the Botanical Exchange Club. By the Editor 

 and Distributor, E. H. Corstorphine, B.Sc. Published by 

 T. Buncle, Market Place, Arbroath, November, 1915. Price 

 35. 6^. 

 In accordance with our usual practice, we have selected from 

 this Eeport certain passages which, for one reason or another, 

 seem of general interest ; but they by no means adequately repre- 

 sent its most notable features. To specialists the numerous 

 remarks on particular genera, to which no further reference is 

 made here, will be of special value ; upon Erophila, Viola, Sagina, 

 Buboes, Bosa, CratcBgus, Hieracium, Euphrasia, Mentha, Salix, 

 Juncus, Potamogeton, Carex, and others there are copious notes 

 and opinions, the latter sometimes discrepant, for experts do not 

 always agree. The notes are sometimes of considerable length — 

 e.g. that upon an unnamed Sagina (pp. 130-132), collected near 

 Arbroath by Mr. and Mrs. Corstorphine, upon which Dr. Moss, 

 Messrs. Marshall, Salmon, Wheldon, Travis, C. E. Britton, and 

 Druce express their opinions, the consensics being to regard it as a 

 form of maritima. Occasionally they are a little puzzling — e. g. 

 that on Orchis prcetermissa Druce, itself perhaps not a very clearly 

 defined plant ; at any rate, the author of the species does not seem 

 satisfied about the Essex examples on which the entry is based, 

 but writes : " The middle lobe of the labellum is longer than in the 

 type, and suggests the presence of maculata : I should like to see 

 it in the fresh state." 



Arabis alpina L. North side of the Cuchullins, Skye, June, 

 1910. — G. C. Druce and T. H. Leach. This was from a different 

 locality on the Cuchullins to that which was discovered by Mr. 

 H. Hart in 1887, and is, I believe, the second time it has been 

 gathered in the British Isles. Mr. Hart's specimens . . . are 

 in fruit ; ours, gathered in June, are in good flower. The plant is 

 very local, and requires climbing to reach (2700-2800 ft. alt.), 

 growing on damp rock ledges. . . . We did not see it on Scur 

 Alister, where it is believed Mr. Hart originally found it. — G. C. 

 Druce. 



Arabis petrcea Lam., var. hispida DO. Ben Hope, W. Suther- 

 land, July, 1907. This hispid variety of A. petrma from Ben Hope 

 differs from the plant of the Cairngorms and Snowdon in having 

 much larger flowers, in this point resembling my var. grandifolia 

 from Ben Laoigh ; in fact, a few plants referable to that variety 

 were found there. Mr. Arthur Bennett referred my grandifolia to 

 A. petrcea, var. anibigua Fries Mantissa iii, 77 ; the vague defini- 

 tion " elatior, foliis radicalibus lyrato-sinuatis caulinis subdentatis 

 radice tenuiori " does not give the essential characters of the Ben 

 Laoigh plant I designated var. grandfolia, which must stand for 

 the Ben Laoigh plant. The var. ambigua Fries, A. ambigua DO. 

 Syst. i, 231, is chiefly Siberian and Unalaskan and is not a 

 perennial, and he makes no mention of size of leaves or flowers. 

 — G. 0. Druce. 



Journal of Botany. — Vol. 51. [March, 1916.] h 



