New Fungi from Mississippi 



Bv S. M . Tracy and F. S. Earle 



Descriptions of other fungi from Mississippi have been pubi 

 hshed by the authors in this Bulletin, 22 : 174-179, and 23 : 205- 

 211, and Hsts of all parasitic species known from the state in Bul- 

 letins 34 and 38 of the Mississippi Agricultural Experiment Station 

 The followmg additions are from the Gulf Coast and adjacent 

 islands, a region that has already afforded a large number of new 

 or local species, both among fungi and the higher plants. Types 

 . of the following are in the herbaria of the authors, and duplicates 

 from the same collections have been placed in the herbaria of 

 Columbia and Harvard Universities, Rutgers College, 

 Botanical Garden and other institutions. 



Misso 



Aecidium Stillingiae 



Hypophyllous or rarely amphigenous : spots definite bri-ht 

 yc low,_ I cm or more in diameter: pscudoperidia densely crowdl^d 

 cyhndncal elongated .5-.75 mm., irregularly lacerale and re: 

 curved, cells quite uniformly pentagonal, conspicuously roughened 

 by ndge-hke folds, 25-30//; aecidiospores light yellow sub- 

 spherical, epispore thick, slightly roughened, 22-29 '^ 



On leaves of StUliiigia llgustrina, Wisdom, Miss., J 



7, S. M. Tracv no ^ m t 7 Alo^ ^-.^,.: 1 ' n . ■, 



14, 



Springs, Miss, 



Also previously collected at Ocean 



Ustilago caricicola 



Involvmg occasional spikes, only slighty distorting the in- 

 florescence : spore masses hard, brown, 2-5 mm. in diameter, ex- 

 ternally fibrous and almost wool-like ; spores mostly ovoid mi- 

 nutely echinulate, slightly fuscous, about 6x4//. 



On Carcx foUiadata, Augusta, Miss., June, 1897, S. M Tracy 

 ■"o- 3343 ; Beauvoir, Miss., May, 1898. 



I 



Ustilago Psilocaryae 



Involving but not de^roying the ovaries, transforming the seeds 

 tnto black powdery masses : spores lenticular, dark brown, opaque 

 epi-spore^thick, reticulated, 10-14 I'- in diameter, 6-8/. thick ' 



^' " ' nchosporioides, Horn Island. Miss.. Orf t.9o. 



and Oct., 1898, S. M. Tracy, no. 5226. 



(493) 



