CONTRIBUTION TO A FLORA OF CAITHNESS 227 



*BRASSICA NAPUS, Z., *B. RUTABAYA, DC., and : ' f B. RAPA, Z., SATIVA 



DRABA INCANA, Z., var. GRACILIS (Z>. gracilis, Led. " Fl. Ross." 

 i. (1842), p. 152). Gelert, in"Bot.Tiddsk.," 1898, p. 310, says: 

 " This is a thin form of D. incana with only few leaves on the 

 stem." Such weak plants have often been called D. hirta. 

 Some Caithness specimens seem to agree with Ledebour's 

 description. 



CERASTIUM VULGATUM, Z., var. HOLOSTEOIDES, Fr. Reay Links, 

 W. R. Linton, sp. 



C. SEMIDECANDRUM, Z. Downreay, Holborn Head, Druce. 



ARENARIA PEPLOIDES, Z., var. DIFFUSA, Hornem. Downreay, near 

 Murkle Bay, Druce. 



SPERGULARIA MARGINATA, Kittel. (S. halophila media, Marss). 

 Roadside near Wick, R. Bain, sp. 



MONTIA FONTANA, subsp. LAMPROSPERMA, Chamisso in Linnaea, 

 1831; var. MAJOR, Bab. ( = AT. fontana, var. rivularis, Syme, 

 teste Beeby). John O'Groat's, Miss Geldart, 1899; shores of 

 Yarrows lochs, J. Grant. 



HYPERICUM PULCHRUM, Z., var. PROCUMBENS, Rostrup. Holborn 

 Head, " Bot. Ex. Club Rep." 1897 (1898). 



*GERANIUM PH^EUM, Z. 



*!I,EX AQUIFOLIUM, Z. 



ACER CAMPESTRE, Z. 



RADIOLA MILLEGRANA, Z. Dunnet Hill, Miller, sp. 



PARNASSIA PALUSTRIS, Z. Abundant on the banks of the Thurso 

 river, Miller, sp. 



LOTUS CORNICULATUS, Z. Near top of Morven, 2300 ft., J. Grant, 



sp. 

 LATHYRUS MONTANUS, Bernh., var. TENUIFOLIUS, Roth. Among 



heath and juniper on river braes near Wick, R. Bain, sp. 



RUBUS ID^EUS, Z. Among boulders at summit of Morven, J. Grant, 



sp. 

 fPvRus ARIA, Z., Brown, Campst., in " Tr. Bot. Soc. Edin." 1860. 



Planted about Castleton, Druce, I.e. 



EPILOBIUM PALUSTRE, Z., var. LAVANDUL^FOLIUM, Lee. et Lam. 

 Probably seen by Rev. E. S. Marshall ("J. Bot." 1889, 146). 



PEPLIS PORTULA, Z. Bower, D. Doull, sp. 



CALLITRICHE PALUSTRIS, Z., (vernalis, Koch). I have seen no 

 specimen that could be referred to this segregate from Caith ; 

 ness. 



C. INTERMEDIA, Hoffm., var. TENUiFOLiA (Persoon, sp., 1805). 



