228 J. O. HAGSTROM, CRITICAL RESEARCHES ON THE POTAMOGETONS. 



Here below I give a list of the P. nitens collections present in our Swedish 

 Museums annotating the form-names of the typical specimens. 



Sweden. Scania, Kjeflinge, 18, Fries (hb. Uppsal.), f. intermedins; Vejlesjo, 

 37, V. DuBEN (hb. Lund.); Krageholm Lake, 37, v. Duben (hb. Lund.), y sub- 

 intermedius ; Malmo, 94, Jonsson (hb. Stockholm.), Allerum, 78, Wallengren. — 

 Smoland, Dagsbo (hb. Uppsal.); Vireda, 74, Nilsson (hb. Uppsal.), f. intermedins; 

 Jonkoping, 81, Svanstrom etc. (hb. Uppsal., Lund.), ff. subovalis and fyrisensis; 

 Vimmerby in the Nossen Lake, 68, A. W. Lund (hb. Lund., Gothenb.), f. mcela- 

 rensis, this is the supposed »P. gramineus x prcelo7igus (P. Lnndii Richt.)», see 

 above! but anything of P. 2^'>''^^ongus cannot be discovered in this plant; N. 

 Vixen, 86, Romare (hb. Lund.), the same f.; Moheda, 74, Hylten-Cavallius 

 (hb. Uppsal.), a more dubious f. with narrow leaf -bases; Hvetlanda, in Eman, 

 85, Samuelsson (hb. Stockholm.); Upplanda, d:o (hb. Stockholm.). — Gothland, 

 Fardume Lake, 52, Westoo and others (hb. Uppsal., Lund), f. gotlandicns; Ting- 

 stade Lake, 95, Johansson (hb. Stockholm.), the same f.; Oja, 90, Laurin (hb. 

 Stockholm.); Bunge, Hultungs, 95, Johansson (hb. Uppsal.); Gothemsan, 43, Westoo 

 (hb. Stockholm.), f. typicns. — Eastgothia, Norrkoping in Motala River, 78, Grevil- 

 LITTS (hb. Uppsal.), f. subsimilis ; 56, Hammarsten (hb. Uppsal.), f. jyrisensis; Lin- 

 koping, 83, Euren (lib. Lund.), f. innominatus; Vadstena in the Vetter, 45 (hb. 

 Uppsal.), f. lacnum; Asby, 86, Molin (hb. Lund.), f. lacuum; Sjogesiiter, 54, Sten- 

 hammar (hb. Lund.), f. stenohasis; Borkhult, 51, Holmgren (hb. Uppsal.), f. snbsi- 

 milis; Hvena Lake, 84, Stromfelt (hb. Stockholm.), f. intermedins; Nynas in Hau- 

 rida, 89, Mattsson (hb. Uppsal.) f. typicns; Norsholm, 83, Euren (hb. Lund.), f. 

 snhovalis. — Westgothia, Frojered, 80, Jungner (hb. Uppsal., Lund.), f. fluminetis; 

 Kinnarum, 65, J. A. R— m (hb. Lund.), f. mcelarensis; Toarp, 89, Olsson (hb. Stock- 

 holm., Lund.), f. typicns; Grimstorp, 99, Nordstedt (hb. Lund.), f. perfoliatif alius ; 

 Trilleholm in Tidan, 63, Vastberg (hb. Lund.), f. robnstior; Sjotorp in the Lake 

 Vener, 1911, B. Lagerwall. — Dalia, Gunnarsnas, 58, Wittrock (hb. Uppsal.), f. 

 typicns; Furusjon, 86, Kellgren (hb. Lund.), f. mcelare^isis ; Holm at Toresbyn, 04, 

 Fryxell (hb. Lund.), f. typicus. — Nericia, Oskevik, 40, Z:dt (hb. Lund.). — Sn- 

 dermania, Hvitsand near Sodertelje in the Mselar, 96, Lindmark (hb. Stockholm., 

 Lund.), f. mcela7-ensis ; Ostertelje in Uttran, 93, Hagstrom et Tiselius (hb. Uppsal.), 

 f. intermedins; Eskilstuna, 34, Hartman (hb. Stockholm., Uppsal.), f. typicus; Her- 

 restad, 86, Kohler (hb. Stockholm., Uppsal.), f. typicus; Linasound at Sodertelje, 

 92, Hagstrom and others (hb. Stockholm., Uppsal.), f. typicus; Nykoping in the 

 river, 51, Fristedt (hb. Stockholm.), f. typicns; Mariefred, 85, Kohler (hb. Lund.), 

 f. mcelarensis; Vardinge in Yngen, 98, Ekstrom (hb. Lund.), f. mcelarensis; Streng- 

 nas in RuUingen, 93, Kohlee (hb. Lund.), f. typicus; besides in Yngaren, Masnaren 

 etc. (hb. Hagstrom); Gryt in Baven, 06, Sonden (hb. Stockholm.). — Stockholm 

 and neighbourhood, Svartsjolandet, 68, Berndes (hb. Uppsal.), f. hrevipes; Skuru- 

 sund, Nyman (hb. Uppsal., Lund.), f. maritimus in hb. norm. 8:67; Nockebybro, 04, 

 Fries (hb. Stockholm., Lund.), f. subovalis; Ulfsundasjon, Wahlberg (hb. Lund.), 

 f. typicus; Brunnsviken, 94, Tiselius (hb. Stockholm., Uppsal., Lund.), f. maritimus; 



