1911-12.] BOTANICAL SOCIETY OF EDINBURGH 49 



changing transversely into others, very peculiar, givino- at 

 first the impression that they are very minute, viz. -004-7 

 mm. across, but such are ultimately seen to be the dimen- 

 sions of particles of chlorophyll, whereas the cells proper 

 are bluntly quadrate, close, with very thin transparent 

 walls, containing four particles of chlorophyll in each, and 

 •009-01-A mm. across, ultimately dark and opaque : such 

 are found throughout the rest of the leaf, the larger next 

 the nerve. Leaves are minutely papillose, more especially 

 in their upper third, less frequently on the margin : height 

 about -0025 mm. 



At Onich near seashore in two places ; in one place 

 similarly situated at Gairloch, 1911. 



Scottish Forms of Spargaxioi. By Arthur 

 Bexxett, A.L.S. 



Following up my previous notes (see p. 26 ). I here give 

 the forms of this genus, which I have from Scotland. 



The specimens have all been seen by the late Mr. Beeby 

 and by Dr. Rothert. 



The names are given in the sense and value of the 

 describers. although opinions may differ as to their being 

 varieties, states, etc. 



Sparganium ramoswm, Curtis (sensu Beeby). 1 



f. m icroca/rpu m, Xeuman in Hartm.. " Sk. Fl.," 112, 1899.' 2 

 — Crianlarich. Perth. E. S. Marshall sp., 1893. Dalmally, 

 Argyll. E. S. Marshall sp., 1893. Baldernock, Stirling, 

 R M'Kay sp.. 1887. 



S. affi/ne, Schniz. 



a zoster i folium, Xeuman (I.e.). — Unst, Shetland, W. H. 

 Beeby sp., 1887. 



fi deminutum, Neuman {l.c.) — Loch na Criche, Moidart. 

 v.c. 97. S. Macvicar sp., 1895. 



y microcephalum, Xeuman {I.e.). — Loch between Rack- 

 wick and Orgill, Hoy, Orkney, E. S. Marshall sp. 



S. minimum. Fries, var. jiacciclum (Meinh. sp.). — 'Mel. 

 Biol.," xviii., 3, 393, 1893. Isle of Gigha, v.c. 101, 



1 S. erectum (a), Linn, "Sp. PL," ed. 1, 1753, 971. 



2 First part, all published. 



TRANS. BOT. SOC. EDIX. VOL. XXVI. 4 



