Dec. 1901.] BOTANICAL SOCIETY OF EDINBURGH 



121 



intend to give these observations here, reserving them for 

 a later paper, but it is worth remark that out of the 

 17,.306 recorded visitors 11,554 were short-tongued flies, 

 and that the order of their flower selection was to — 



Class Bi . . . . 4971^ 



., AB . . . . 3U18 



„ A .... :>253 



„ B .... 640 



„ Po . . . . 344 



Classes F and H (combined) . 299 



the remaining 7 went to class AY. 



Among- the 363 self-maintaining species of the flora, 

 45 are annuals, 276 are herbs of more than one year's 

 growth, 34 are shrubby, and 8 are trees. Many of the 

 annuals are maintained by man indirectly, and out of 

 them we consider 28 to be intrusions on the results of 

 husbandry. It is very marked how the annuals decrease 

 in number as we ascend the hills. 



Above 3000 * 

 2500-3000 

 2000-2500 

 1500-2000 

 1000-1500 

 500-11 '00 



These figures are very regular in sequence ; and, if 



we deduct from the flora of the lowest zone the 35 



* Given shelter, annuals may run higher; Buchanan White found 

 Euphrasia almost at the top of the crags of Lochnagar (" Scottish 

 Naturalist," viii. p. 340), but within our region there is no shelter 

 above oOOO feet. 



tionally cold, with very heavy falls of snow which blocked 

 the roads in the glen for fourteen weeks. 

 June 14-July 8 (I. H. B.). Fine to unsettled. 

 July 5-23 (J. C. W.). Wet weather. 

 September 13-24 (I. H. B.). Fine weather. 

 1896, May 21-23 (J. C. W.). Unsettled; season earlv. 



June 16-July 11 (I. H. B.) ; July 4-11 (J. C. W.). Fine 

 to tm.*ettled. 



^'ery fine ; season late. 



Cold, with frequent snow showers ; 



1897, May 18-27 (I. H. B.). 



1898, May 7-16 (1. H. B.). 



season late. 



1899, June 10-19 (I. H. B.) 

 July 24-26 (J. C. W.) 



Fine and warm. 



Dull. 

 AVe' can only regret that it has not been possible for us to 

 pay a visit to Clova in August ; with the exception of 

 this month, and the close of the season in October, we 

 have worked at the biology of Glen Clova in all phases 

 of its vegetative activity. 



TKAXS. BOT. SCO. EDIX. VOI- IXII. I 



