Calamagrostis strigosa as a British Plant. 315 



Trinius under stn'r/osa, as was done by General Munro in 

 Sir J. D. Hooker's paper on Arctic Plants in the Linnean 

 Transactions, p. 307, it will extend its distribution to 

 N. E. Asia and W. and N. E. America (Arctic). In this 

 paper Hooker also gives it as a Greenland plant. Dr Lange 

 {Conspectus Floroi Groinlandicce) doubts its occurrence, and 

 no specimens from there exist at Copenhagen. There is 

 some reason to think that it may be found there, as the 

 Swedish expedition of 1883 gathered C. lapponica, Wg., at 

 Sofieham, in North Greenland. 



Anderssen, under C. lapj^onica, Wg., has a note — " In 

 Scotia adest forma nostras plantae valde similis." Where 

 could he have obtained this information ? I cannot trace 

 it. Surely it could not have been the Forfar plant always 

 referred to C. stricta, Nutt. 



C. st7'igosa diifers from C. stricta {Deyeuxia stricta of 

 Hooker's Student's Manual, 3rd ed.) by its larger and more 

 acute glumes, armature of the pedicels, length of hairs of 

 the florets, more acute iigules, in minor characters and habit. 



Calamagrostis is a genus in which the species are 

 specially difficult of determination, and they seem con- 

 siderably more so in the north than in the south of Europe; 

 sub-species and hybrids occurring there that make it very 

 difficult to fix the limits of the forms. In an early state 

 Calamagrostes are liable to be passed over for other grasses, 

 and it will be well that all lochs that possess a sloping shore 

 with accompanying marsh, and rivers, whose banks are low, 

 with ditches alongside, should be examined for other species 

 of the genus in Scotland. I shall be only too pleased to 

 render any help. 



While on the subject of a grass, I should like to suggest 

 that Sclerochloa Borreri^ Bab., ought to be found on the 

 Scottish coast. Unless we consider S. conferta, Fries, to 

 be a northern sub-species of this, it is found in Iceland, 

 Greenland, and Scandinavia, so there is really no reason 

 why it should not be found. Has it been confounded with 

 forms of distant or maritima ? 



Carcx aquafilis, Wg., var. cuspidata, Laestadius. Among 

 my friend Mr Hanbury's gatherings in Caithness last July, 

 I fovmd a few specimens of this form of aquatilis, where it 

 was growing with C. aquatilis, var. Watsoni, Syme, and C. 



