13 



Aetinothyrium Magnolise, S. 

 S. Syn. Am. Bor. 249 no. 2177. d. 1834. 

 Sacc. Syll. 3 : 658. d. 15 Dec. 1884. 

 ACurtis, Fr. 

 Fr. Summa 337. 1849. 



Sacc. Cub. & Mane. Syll. 6 : 691. d. i Aug. 1888. 

 Sacc. Syll. 11 : 13*9. d, July 1895. 

 ACurtis gigantea, (S.) Fr. 

 Fr. Summa 337. 1849. 



Sacc. Cub. & Mane. Syll. 6 : 691. d. i Aug. 1888. 

 Cke. Grev. 20: 11. Sept. 1891. 



NOTE. The genus ACurtis, Fr. was founded on Clavaria gigantea, S. 

 which by later writers has been recognized as a monstrosity of some species 

 of Lentinus. Writers are not agreed as to whether the species is Lentinus 

 tigrinus (see B. Card. Chron. II. 9 : 339. 16 March 1878) or Lentinus 

 lepideus (see W. G Smith, Jour. Bot. 41 : 322. Oct. 1903). 



Aeeidiella, Ell. & Kelsey. 

 See Puccinioslra, Lagerh. 



Aeeidiella Triumfettse, Ell. & Kelsey. 

 See Puccinioslra pallidula, Lagerh. 



Aecidium, P. Including Peridermium, (Lk.) Lev. and Rcestelia, Reb. 

 NOTE. Under the genus Aecidium are included all our aecidial forms 

 whether their connection with definite teleutosporic forms is known or not. 

 Where such connection is not yet known we have given all the references to 

 the species known to us. Where such connection is known or is strongly 

 suspected we have given under the aecidial name the references to the aecidial 

 form itself with a cross-reference to the uredosporic and teleutosporic forms, 

 where incidental references to the aecidia may also be found. 



It should be remarked that the modern method of studying the Uredinese 

 by infection experiments has resulted in the recognition of many races or 

 form-species, and the older characterization and nomenclature of aecidial 

 forms can be regarded only as temporary. 



Aecidium abietinum, A. & S. 



NOTE. The species of Albertini and Schweinitz has been shown to include 

 two forms : one connected with Chrysomyxa Rhododendri, the other with 

 Chrysomyxa Ledi. (See DeBary, Bot. Zeit. 37: 761 et seq. 1879, and, 

 Schrbeter, Beitr. Biol. Pflanzen 3:51. 1879.) The Aecidium abietinum 

 A. & S. {Peridermium abietinum, Thm.) as used by American mycologists 

 probably does not include the form connected with Chrysomyxa Rhodo- 

 dendri, as that species has not been reported in America. Some of the 

 references relate to the aecidial form of Chrysomyxa Ledi, but uncertainty 

 exists in other cases because under Aecidium abietinum some writers have 

 included as var. decolorans, Thm. the Peridermium decolorans of Peck. 



For references to forms probably connected with species of Chrysomyxa on 

 Ledum see Farl. Appalachia 3 : 239, Jan. 1884, and Proc. Am. Acad. 20 : 

 320, 1885 ; also Schroeter, Beitr. Biol. Pflanzen 1. c. and Ber. Schles. Ges. 

 1887 : 279. 



Aecidium (Peridepmium) abietinum, (Fung. Columb. 1479). 



NOTE. The locality and host make it probable that the specimens in this 

 case belong to a species which is not identical with those elsewhere given 

 under Aecidium abietinum. 



Aecidium abietinum, Auct. Amer. p. p. 



See Aecidium decolorans, (Pk.). 

 Aecidium abietinum, f. Engelmanni, Ell. & Ev. 



See Aecidium Coloradense, Diet. 



