N0TE3 OH^ BEITISn P0TAM0GET0N3 13 



plant ! while in the Linnean herbarium one of the specimens named 

 " compressus " is lieterophyUus ! Hagstrom does not accept. 

 P. gyaminifolhis (Fries) l^yer for the Irish plant named P. lonchites 

 (Syme non Tuckerman). At the date of Syme's determination one 

 had to accept it ; he said later he had seen fruit and this seemed final. 

 AVriting to A. Gr. More in 1889, I remarked : " If not a hybrid, what 

 then ? I really do not know what to answer, but I strongly suspect 

 it may eventually come under lieterophijUus as var. hiherniciis. Out 

 of hundreds of specimens of }ietfrop)hyUi(s I have seen from over its. 

 whole area there is nothing quite like the Irish plant, so that the 

 above is still my opinion. 



P. FALCATUS Fryer. Hagstrom (p. 221) refers this to nitens 

 Weber, but some of Fiyer's specimens, e. g. " Stocking Fen, Eamsey, 

 Hunts., nos. 1265, 1275, 1086" — he refers to "true gramineus, 

 verging to i. jemflandicus Tis., or f. nigrescens Fr." (p. 209). 



P. KiTENS Weber (p. 221). Sweden to Swedish Lapland ; 

 Norway to Sydvaranger ; Finland to 63"^ n. lat. {Hjelt) ; Scoflaniv 

 to Shetland, Beehy. Hagstrom's account of nitens is very full : he 

 divides it into three varieties or groups : o. suhgramineus, with seven 

 forms ; /3. suhperfoliatus, with nine ; y. intermedins, with ten. Of 

 suhperfoliatus we have in Ireland, i. prcelongifolius (Killarney, 1890; 

 SculW, 2734 ; Ballyputylough, co. Clare, 1905, Frceger ; Ballynane- 

 Lake, Donegal, 1893, H. C. Hart) ; and f. ohtusus (Antrim, Drough 

 river, 1883 and Six-mile river, Dunaday, S. A. Steicart) : in Scotland, 

 f. perfoliatifolius (Thurso river, Caithness, 1886, F. J. Hanhury ; 

 Brue loch, Dunrossness, Shetland, 1890, Beely) and f. elongatus- 

 (Lunanburn, E. Perth, 1882, A. Stnrrock; Isle of Tire, v.c. 103, 

 1896, Macvicar; Birsaj, Orkney, 1876, J. W. H. Trail). 



P. LUCEXS L. (p. 232). Sweden to c. 63° n. lat, ; Norway, to 

 61° n. lat. (BIytt) ; Finknd. Hagstrom doubts Hjelt and Hult's 

 record of Kolari in Kemi Lappmark (1885), but this is confirmed in 

 Herb. Mus. Fenn. (1889) p. 33, and by Wainio at 67° 25' n. lat. in 

 his Fl. Lap. findland (1891) p. 71. In Ireland and England 

 f. insignis Tis. seems the most frequent form. 



P. DECiPiE^s Nolte (p. 2-12). Sweden to Gefleborgs Ian {Berlin)]. 

 Finland (as P. salicifolius Wolf), by Hjelt, Fl. Fenn. i. 538 (1895). 

 In Britain to Forfar, and v.c. 102 of Inner Hebrides, Somermlle., 

 I quite agree with Hagstrom that this =JucensxperfoJiatus, audi 

 consider that Graebner's separation into tw^o hybrids {Das Bjlanzen- 

 reich, 137, 1907) is erroneous. It is, as Hagstrom remarks, a 

 "beautiful hybrid"; the leaves and stipules in Cambs specimens, 

 are so translucent that every vein and sub- vein can be seen. I have- 

 only seen one specimen in fruit — from "Benwick, Cambs, 7.1884,, 

 A. Fryer." Of the Bath plant named in MS. " P. Burtoni, Canal,. 

 Bath, Som. ex herb. Hopkins, July 1866," I possess two specimens,, 

 and one from T. B. Flower, 1867 ; I also know those at the British 

 Museum and Kew. Fryer agreed wdth me that " wdiatever ' decipiens " 

 they were, they w^re not the decipiens of Nolte's herbarium." 



The plate in Journ. Bot. (1867, t. 61) was drnw^i from a specimen* 

 of true decipiens-, in the description (p. 73) it is definitely stated 



