CONTRIBUTION TO A FLORA OF CAITHNESS 229 



H. GRAVESTELLUM, Daklst. (rhomboides, Stenstr.). Thurso, Rev. 



H. J. Riddelsdell. 



H. CERINTHIFORME, Back. Thurso, Druce, I.e. 

 H. RUBICUNDUM, F. J. Hanb., var. f3 BOSWELLII, F. J. H. (H. 



jBoswellii, Linton). Strath of Dunbeath, Linton. 



H. SOMMERFELTII, Lindeb. Berriedale, form with very hairy leaves, 



Linton. 

 H. SILVATICUM, Gouan, var. PH/EOTRICHUM, Dahkt. Thurso, Rev. 



H. J. Riddelsdell. 

 H. SARCOPHYLLUM, Stenstr., var. EXPALLIDIFORME, Dahlst. Reay, 



Linton's "Brit. Hieracia," p. 55. 



H. SUBANFRACTUM, E. S. Marsh. Thurso, Rev. H. J. Riddelsdell. 

 H. VULGATUM, Fr., var. SUBFASCICULARE, IV. R. Linton. Berriedale 



and Dunbeath, " Brit. Hieracia," p. 64. 

 H. STRICTUM, Fr., var. OPSIANTHUM, Dahht. Thurso river and 



Wick river, " Brit. Hieracia," p. 86. 



(To be continued.} 



CONTRIBUTIONS TO A FLORA OF THE OUTER 



HEBRIDES. No. 4. 



By ARTHUR BENNETT, F.L.S. 

 ( Continued from p. 170.) 



U. NEGLECTA, Lehin. ( = U. major, Schmidel, ex Keller). The plant 

 referred here, gathered by Dr. Shoolbred in " a small loch near 

 Loch Maddy in North Uist," I believe to be correctly named. 

 This species seems to vary in size more than the others, I have 

 specimens with flowering stems 20 inches long and pedicels 

 ii inches long from " Staines, Middlesex, G. Nicholson." 

 These I refer to the U. neglecta, Lehm., "f. gigantea, Prahl, 1 

 mit 1.5 m. langem Bliitenstand fand Prahl ! ." 



Dr. Williams (" Prod. Fl. Brit." p. 6 (1909), p. 346) makes 

 this the /3 major of U. vulgaris ; and quotes Herr Meister as 

 saying that he considers vulgaris and neglecta are extreme states 

 of one species. I cannot agree with this. U. neglecta is 

 abundant in one spot in Surrey, and flowers freely, and both 

 grow together under the same conditions. 



U. INTERMEDIA, Hayne. Scarp, W. S. Duncan, sp. " Small lochs 

 and ditches in N. Uist, Harris, and Taransay," Dr. Shoolbred. 



1 In Prahl's " Krit. Fl. Schl.-Holstein " (1890), p. 173. 



