ERRATA. 



In the table of contents : 



Fifth paragraph, for ten plates on nine sheets read nine p'atcs on <i<jlit sheets. 



In tlie Historical Sketch : 



Page 216, 22d line, read Charles W. Eliot. 



" 6th " from bottom, for from all read from that of all. 



" 217,12th " n.^tQr leithiwicvt the chief causes of . 



In Mr. Sciidder's memoir : 



Page 33, line 9 froin the bottom, for confidentially read confidently. 



In Dr. Farlow's memoir : 



Page 3, note 2, for TTstitaginees read Ustilaginees. 



" 6, 9th line from top, for Euromyces read Emiromyces. 



" 7, 18th " " " " hynienifenis read hynieniferous. 



" 9, 5th " " bo'ttom, for raries read vary. 



" 11, 4th " " top, for Berke read Berk. 



" 12, 10th " " " " /;;. 17 read/y. 16. 



" 18, 12th " " " " Gasperrini read Gasparrini. 



" 20, Gth & 10th lines frotn top, for thuyoides i"ead thy aides. 



" 21, 7th line from top, for yymnosporangium read Gytnnospioranyitim. 



" 24, 13th " '■ " " luminata read luminatum. 



" 31, 10th »' " " « tiibercules read tubercles. 



" 31, 23d ■' " " " pseudoperidis yqa<\. p>seudoperidiis. 



"32,19th" " " h&iore present \nse\% the. 



" 33, 9th " " " for R. laccrta read E. lacerata. 

 Owing to the absence of the writer during the printing of this article a considerable p;irt of the jiroof 

 could not be submitted to him for revision. 



In Prof Morse's memoir : 



Page 7, 17lh line from top, for fore read hi/id. 



In Prof. Ja)nes' memoir : 



Page 12, lOtli line from bottom, for riyht read left. 



" " 9th " " " " left read right. 



" 30, 8tli " " top, for work read no work. 



expressed my sincere regret that we can no longer be led in this work by the President 

 whose devotion we have been only too pleased to acknowledge by our ballots for ten years 

 past ; but as long as his life is spared to us we shall have his sympathy and wise advice, 



(V) 



