(458) 



Exsiccati: Briosi & Cavara, Funghi Paras. 161, 163; Sydow, 

 Ured. 380, 585, 799, 1288, 1289, 1885; Linhart, Fungi Hung. 

 39, 132, 243; Roum. Fungi Sel. 7339; Sacc. Myc. Ital. 437, 921, 

 1096; Sacc. Myc. Venet. 398; Sydow, Myc. Mar. 1816; Eriks. 

 Fungi Par. Scand. 73, 180; Rab. Fungi Eur. 1390; Rab.-Wint.- 

 Paz. Fungi Eur. 4013; Rab. Herb. Mycol. 788; Desm. PL Crypt. 

 1378; Thiim. Myc. Univ. 743, 1122; West. & Wall. Herb. Crypt. 



Although the writer has previously given brief statements 

 (Kern, 1908 1 , 1908 2 ) of his disposition of the specific name juni- 

 perinum a further explanation seems desirable. It seems clear 

 from the literature that Linnaeus and the writers who followed 

 him for a hundred years or more used this name to refer to a large 

 conspicuous form such as is known to belong with Roestelia 

 penicillata. Oersted (1866 1 ) is responsible for introducing the 

 use of the name juniperinum for the smaller and less conspicuous 

 form which he culturally connected with Roestelia cornuta. Euro- 

 pean writers since the time of Oersted have been uncertain in the 

 use of this name. Recently Fischer (1909, 1910) has shown by 

 cultures that at least three distinct species have quite generally 

 been included by most European authors under this name. He 

 separates out under the name G. Amelanchieris, a small twig- 

 inhabiting form belonging with an aecial form on Amelanchier, 

 and under the name G. Torminali-juniperinum an inconspicuous 

 leaf-inhabiting form producing its aecial phase on Sorbus torminalis. 

 By a sort of process of elimination he retains the name juniperinum 

 for the form related to Roestelia cornuta on Sorbus Aucuparia. 

 In this, Fischer follows Oersted but since the evidence indicates 

 he was originally responsible for a misuse of the name the writer 

 hesitates to accept this interpretation. The disposition of the 

 name juniperinum, previously suggested by the writer and here 

 retained, appears to be in accordance with the prior conception. 



24. Gymnosporangium gracilens (Peck) Kern & Bethel. 

 Aecidium gracilens Peck, Bot. Gaz. 4: 128. 1879. 

 Gymnosporangium speciosum Peck, Bot. Gaz. 4: 217. 1879. 

 Aecidium Rusbyi Gerard, Bull. Torrey Club. 8: 34. 1881. 

 Tremella speciosa Arth. Proc. Ind. Acad. Sci. 1900: 35. 1901. 



Aecia hypophyllous,in small groups 2-5 mm. across, on discolored 

 spots, cylindric, 0.3-0.4 mm. in diameter by 2-3 mm. high; peri- 



