4 Clavarias of the United States and Canada 



fungi, many of them Clavarias. These are the ones referred to 

 as collected by "Coker and party." About one-fourth of the ma- 

 terial (with notes) prepared on this trip was unfortunately lost 

 on the return, being mistaken for something valuable by a mis- 

 guided thief. 



In preparing the plates of microscopic detail I have been 

 assisted by Miss Holland and Mr. Couch. Miss Holland has made 

 many of the drawings and done all of the ink work. Mr. Couch 

 has made sections and done much of the drawing. The photo- 

 graphs have, with a few exceptions, been made by me, and a good 

 many of them have been developed and printed by Mr. Totten. 

 The plates in color have been painted by the following : 



Miss Mary E. Eaton — pi. 1, figs. 5 and 6; pi. 9, figs. 2-4; pi. 

 19, figs. 3 and 4 ; pi. 23 ; pi. 28, figs. 1 and 4 ; pis. 39 and 63. 



Miss Dorothy Coker— pi. 19, fig. 2 ; pi. 28, fig. 5 ; pi. 50, fig. 3. 



Miss Gladys Coker — pi. 9, fig. 1 ; pi. 50, fig. 1. 



Miss H. C. v. d. Pavord Smits — pi. 50, fig. 2. 



Miss Cornelia S. Love — pi. 1, figs. 2, 3, 4, and 8; pi. 28, figs. 3 

 and 6. 



Miss Alma Holland— pi. 28, fig. 2. 



Miss Ann Hibbard — pi. 1, fig. 7; pi. 19, fig. 1. 



Mrs. Edith Branson Smith — pi. 1, fig. 1. 



All of the paintings and photographs except that of C. Murrilli 

 were made from the living plants. 



Recently there has appeared Burt's important paper on the 

 North American Species of Clavaria (see p. 14). As the present 

 study was in proof at the time, I have made but sparing reference 

 to his work, and only when there is divergence of opinion. The 

 second volume of Buller's Researches on Fungi has also just 

 reached me. In this several pages are devoted to spore formation 

 and discharge in the Clavarias. The only important observation 

 recorded by him concerns spore discharge in C. formosa, which 

 was found to resemble closely that of other Hymenomycetes. He 

 says (p. 185) : 



"Shortly before a spore was to be discharged, a drop began to 

 be excreted at the spore-hilum. As soon as this drop had grown 

 for about five seconds and had attained a diameter equal to about 



