The Scottish Naturalist. 21 



Messrs. H. & J. Groves (Cliaracetz), Prof. Hackel {Gramind) r 

 Herr Svante Murbeck ( Viola), and Mr. H. N. Ridley (Orcliidacece). 

 Without their help I could not have hoped to present an account 

 of the various forms such as could be of any value, more especi- 

 ally as I am acquainted rather with our southern forms than with 

 those of the extreme north. My thanks are also due to Mr. A. 

 Craig-Christie and Dr. F. Buchanan White lor many useful hints 

 and localities. A few Hieracia and other critical plants are still 

 under examination ; and on these I hope to report on some future 

 occasion. 



Four distinct districts were visited, the greater amount of time 

 being spent in Unst, in which the tract north of Baltasound was 

 alone worked ; a walk of fifteen miles through Yell, and a few 

 hours spent at Mid Yell Voe the following morning, represent the 

 work done in that island ; two days were spent about Ollaberry, 

 in Northmavin, the northern peninsula of Mainland ; and a few 

 hours about Lerwick, in the southern peninsula. The following, 

 abbreviations are used : 

 U = Unst. Y = Yell. 

 N = Northmavin. L = Lerwick. 



* = believed not to have been previously published as British. 

 \ =not recorded in Top. Hot., Ed. If., or in Bennett's " Ad- 

 ditional Records" unless with some form of query. 



Ranunculus Fiamniula L. Most commonly as the var. 

 radicans Nolte ; sometimes, as by the shores of Littlesetter Loch, 

 Yell, much like R. reptans L. The latter may occur ; but Ed- 

 mondston's record of it appears, from the localities visited, to refer 

 to the var. of Flammnla. 



Caltha palustris L. U. Loch of Cliff. Y. Littlesetter Loch. 

 N. Ditches and streams about Ollaberry. * Var. Zetlandica 

 mihi. U. South end of Loch of Cliff. Y. Peaty ditches by the 

 Arisdale Burn, Hamna Voe ; Littlesetter Loch. L. Stony margin 

 of Clickhimmin Loch. The plant for which I propose the above 

 name is too abundant and wide-spread to be passed by as a chance 

 form of the type. It is characterised by its small size (about 5 8 

 inches), rooting stems, and small flowers, but the root-leaves re- 

 semble those of palustris rather than C. radicans Forstj the char- 

 acteristic root leaves of which were sought in vain. I thought 

 that it might be the C. palustris var. radicans of Fries, which has 

 been said not to be the true plant of Forster; and Dr. Lange, to 



