260 



Arthrinium earieieolum, Kze. 

 S. Syn. Am. Bor. 278 no. 2612. 1834. 

 Cke. Bull. Buf. Soc. 3 : 201. July 1877. 



Arthrinium eupvatum, Kze. 



See Camptoum curvatum, (Kze.) Lk. 



Apthpinium spopophloeum, Kze. 

 SporophlcEum gramineum, Lk. 



S. Syn. Am. Bor. 278 no. 2615. 1834. 

 Cke. Bull. Buf. Soc. 3 : 201. July 1877- 



APthonia eonfluens, Auct. Amer. p. p. 



Note. The genus Arthonia has usually been considered to belong to 

 lichens although some modern writers consider that at least part of the species 

 should be regarded as fungi. In the two citations given below Peziza pru- 

 inata, S. is said to be Arthonia eonfluens, a statement difficult to understand 

 since P. pruinata is properly considered to be a synonym of Solenia poriie- 

 foriis, (P.) Fckl. and is not related in the least to Arthonia. 



Furthermore from the citations below it is not possible to say which of the 

 several species known at different times under the name Arthonia eonfluens 

 is referred to. Apparently as used by lichenologists at the present day that 

 name is a synonym of different species of Opegrapha and Graphis. 



For North American species of Arthonia from a lichenological point of 

 view see Synopsis of the Genus Arthonia by Henry Willey, 1890. 



Cke. Bull. Buf. Soc. 2 : 293. March 1875. 

 B. Grev. 3 : 156 (134). June 1875. 



Apthpobotrys, Cda. 

 Pound & Clements, Minn. Bot. Studies 9 : 664. d. 30 Nov. 1896. 



Apthpobotpys oligospopa, Fres. 



See Arthrobotrys superba, Cda., var. ollgospora, (Fres.) Coem. 



Apthpobotpys posea, Massee. 

 Patterson, Bull. U. S. Agr. PI. Industry 8 : 27. 3 Feb. 1902. 



Apthpobotpys supepba, Cda., var. oligospopa, (Fres.) Coem. 

 Pound, Bot. Surv. Nebr. 3:11. 18 June 1894. 



Arthrobotrys oligospora, Fres. 

 Farl. Bull. Bussey Inst. 1 : 439. March 1876. 



Apthrobotpyum, Ces. 



Notk. The genus Arthrobotryum, attributed by various mycologists to 

 Cesati, was originally described, although rather vaguely, in Klotzsch Herb. 

 Viv. Myc. no. 1821. 1854, under the generic name Arthrographium and 

 the description was repeated in Bot. Zeit. 12: 186. 1854. In both places is 

 quoted the figure in Hedwigia 1: pi. 4, f. 3 (error for / /) which is called 

 Arthrobotryum stilboides without notes or description. As it is doubtful 

 whether the generic characters as understood by Cesati could be recognized 

 from the figure alone it might be questioned whether Arthrographium should 

 not replace Arthrobotryum. Since the latter name has been constantly used 

 by subsequent mycologists, not always perhaps in the same sense as used by 

 Cesati, we have not thought it best to abandon the name. 



Some of the North American species which have been by some writers in- 

 cluded in Arthrobotryum do not appear to us to be congeneric with A. stil- 

 boides, especially those here referred to Arthrosporium. 



Whether Didymobotryum, Sacc. Syll. 4 : 626.^/. 10 April 1886 should 

 be considered distinct from Arthrobotryum is so far as North American 

 species are concerned doubtful and we have placed the North American 

 species of Didymobotryum under the present genus. 



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



