261 



Apthrobotryum atpoeephalum, (Ell.) Sacc. 

 Sacc. Syll. 4: 630. d. 10 April 1886. 



Stilbum atroeephalum, Ell. 

 Ell. Bull. Torr. Bot. Club 6 : 107. d. Sept. 1876. 

 Ell. in Cat. PI. N. J. 572. 1889. 



Wettsteinlella atrocephala, O. Kuntze. 

 Kuntze, O., Rev. Gen. PI. 2 : 875. 1891. 



Apthpobotpyum eompositum, Pound & Clements. 

 See Arthrosporium eompositum, Ell. 



Apthpobotpyum didymum, (Cke.) Pound & Clements. 



Note. We have not been able to examine an authentic specimen of this 

 species but the spores are said to be i-septate and for this reason it is placed 

 by Saccardo in Didymobotryum. Since however D. pubeseens is to be re- 

 ferred to Arthrobotryum we have preferred to place this species also in 

 Arthrobotryum since, judging from the described species, the grounds on 

 which Didymobotryum is separated from Arthrobotryum seem hardly 

 adequate. 



Pound & Clements, Minn. Bot. Studies 9: 728. 31 May 1897. 



Stilbum didymum. Cke. 

 Cke. Grev. 7 : 34. d. Sept. 1878. 



Didymobotryum Cookei, Sacc. 

 Sacc. Syll. 4 : 626. d. 10 April 1886. 

 Lindau in Engler & Prantl, Pflanzenfam. I 1 ** : 496. Feb. 1900. 



Apthpobotpyum fusispopium, A. L. Smith. 

 Smith, A. L., Jour. Linn. Soc. 35 : 13. d. pi. 1 , /. 13-15. 1 April 1901. 



West Indies. 

 Sacc. & Syd. Syll. 16 : 11 58. 1 Feb. 1902. 



Apthpobotpyum Melanoplaea, B. & C. 



Note. This seems to be the conidia of a species of Meliola, possibly 71/. 

 penicilliformis, Gaillard described on Psychotria from South America. See 

 Gaillard, Le Genre Meliola 57.//. 6,f. 2. 1892. 



B. & C. Jour. Linn. Soc. 10 : 360. d. 1869. West Indies. 

 Sacc. Syll. 4 : 629. d. 10 April 1886. 



Wettsteinieila Melanoplaea, O. Kuntze. 

 Kuntze, O., Rev. Gen. PI. 2: 875. 1891. 



Apthpobotpyum pubeseens, (C. & E.) Pound & Clements. 



Note. The spores of this species as figured in Grev. 6 : //. g6, f. jS are 

 two-celled but mature spores as shown in N. A. F. 2488 are four-celled and 

 dark colored and the species belongs to Arthrobotryum rather than to Didy- 

 mobotryum where it is placed by Saccardo. 



Pound & Clements, Minn. Bot. Studies 9 : 728. 31 May 1897. 

 (J rap hi urn pubeseens, C. & E. 



C. & E. Grev. 6: 5. d. pi. 96, f. 38. Sept. 1877. 

 Ell. in Cat. PI. N. J. 573- 1889. 



*E1I. & Ev. N. A. F. 2488. 1890. 

 Didymobotryum pubeseens, Sacc. 

 Sacc. Syll. 4 : 627. d. 10 April 1886. 



Lindau in Engler & Prantl, Pflanzenfam. I 1 ** : 496. Feb. 1900. 

 Apthpobotpyum pobustum, C. & E. 

 C. & E. Grev. 7 : 7. d. Sept. 1878. 

 Sacc. Syll. 4 : 629. d. 10 April 1886. 

 Ell. in Cat. PI. N. J. 573- 1889. 



Wettsteinieila robusta, O. Kuntze. 

 Kuntze, O., Rev. Gen. PI. 2 : 875. 1891. 



