KUNGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 55. N:0 5. 



97, Baagöe (hb. Stockholm.). — Finland, Karelia austr. et Tavastia austr. 08, H. 

 Lindberg. — Bussia, S:t Petersburg, 23, Weinmann (hb. Stockholm.), Sarepta in 

 Volga, Becker (hb. Stockh.), Kronstadt, 57, Körnicke (hb. Stockholm.). — Eng- 

 land, Shropshire, 81, Beckwith (hb. Stockholm.), Surrey, 81, Bennet, 82, Niciiolson 

 (hb. Stockholm.). — France, Carenton, 86, Corbiére (hb. Stockholm., Lund.), 

 Basserville (hb. Stockholm.) — Germany, Pomerania, 61, Zabel (hb. Uppsal.), 

 Konigsberg, 71, BiENiTZ (hb. Uppsal., Lund.: var. rutiformis Fisch.), Holstein, 

 92, Simmons (hb. Lund.), Bremen, Wikström and Grenier (hb. Stockholm.), Ba- 

 varia, Bamberg, 02, Fischer. — Austria, Vienna, 83, Tiselius (hb. Stockholm.). 

 The Tyrol, Kreutzberg, 71, Huber (hb. Stockholm.). — Hungary, Ofen, Steinitz 

 and Richter (hb. Uppsal., Lund.). — Istria, Bentham (hb. Stockholm.). — Trans- 

 silvania, Vizakna, Schur (hb. Stockholm.). — Spain, Guadalhore a Pizarra, 83, 

 Nilsson (hb. Uppsal.). — Portugal, 55, Sjögren (hb. Stockholm, and Lund.). — 

 Italy, Stagnis taurinensibus, Rostan (hb. Stockholm.: v. minor), Piedmont, Hohen- 

 acker (hb. Uppsal.), Palermo, Todaro and Lägger (hb. Uppsal.: v. minor), 83, 

 Lojacona (hb. Stockholm.: the main-form), Avola, 56, Huel du Pavillon (hb. Upp- 

 sal. : the main-form), Sicily, Tineo in hb. C. F. Nyman (hb. Stockholm. : the main- 

 form), »Palermo al fiume Oreto, Tod. » in hb. C. F. Nyman (hb. Stockholm.: v. 

 minor). 



Africa, Madeira, Fayal in rivulo, Mandon (hb. Stockholm.: the main-form), 

 Abyssinia, prope Adoam, 37, Schimper (hb. Stockholm., Uppsal.: f. austrinus); 

 South-Africa, Grahamstown, 97, Mac Owan (hb. Uppsal. : f. austrinus) ; Cape of Good 

 Hope, Wahlberg (hb. Stockholm. : the main-form). Natal, in riv. pr. Idutywa, 95, 

 R. Schlechter N:o 6272 »P. pusillus L.» (hb. Stockholm.). Asia, Afghanistan, 63 

 — 64, hb. Griffith (hb. Stockholm.), China bor., Kansu, 85, Potanin (hb. Stock- 

 holm.), a somewhat dubious form. America, Lees Lake, Colorado, 97, Crandall 

 (hb. Uppsal.: v. minor), Chisago Lake, Minn., 92, Taylor (hb. Stockholm.: v. minor?), 

 Ottawa, Canada, 82, Fletcher (hb. Stochholm., approaching to the main-form). 

 Oceania Honolulu, 52, Andersson (hb. Stockholm.), lacks fruit and turios, but seems 

 to be this species. 



P. panormitanus Biv. x pusillus L. (P. dualis Hagstr. n. hybr.). 



It may be almost impossible to give so accurate a description of this hybrid 

 that the different forms could, by such a one, be identified. It seems also to be 

 very rare. Of all Pusilli I have examined I have met with only the few forms 

 mentioned below which can with any amount of certitude be reckoned to this hy- 

 brid. To identify it we shall have first of all to pay attention to the buds and to 

 the fruit, further to the nervation and stipular sheaths, and the mode of branching 

 from the basis of the primary peduncle. If we know perfectly the characters of the 

 supposed parents, we shall soon discover the deviations and the intermediate form 

 betvveen the one and the other. 



