PERONOSPOBALES. 63 1 



Diploneis Campylodiscus (Grim.) Cleve. 

 Diploneis coffaeiformis (A. Schmidt) Cleve. 

 Diploneis Crabro Ehrenb. 

 Diploneis demta (A. Schmidt) Cleve. 

 Diploneis gemmatula (Grun.) Cleve. 

 Trachyneis Antillarum Cleve. 

 Trachyneis Debyi (Leud.) Cleve. 

 Navicula approximata Grev. 

 Navicula complanata Grun. 

 Navicula cuspidata ambigua (Ehrenb.) Cleve 

 Navicula directa W. Smith. 

 Navicula irrorata Grev. 

 Navicula Scopulorum Breb. 

 Navicula transfuga Grun. 

 Gyrosigma rectum (Donkin) Cleve. 

 Pleurosigma compactum Grev. 

 Pleurosigma Weissflogii (Grun.) Cleve. 

 Auricula intermedia Cleve. 

 Auricula minuta Cleve. 

 Epithemia gibberula (Ehrenb.) Kiitz. 

 Nitzschia angularis W. Smith. 

 Nitzschia compressa (Bailey) Boyer. 

 Nitzschia granulata Grun. 

 Nitzschia Jelineckii Grun. 

 Nitzschia panduriformis Greg. 

 Nitzschia vermicularis (Kiitz.) Hantzsch. 

 Surirella fusiformis Leud. 

 Surirella incurvata A. Schmidt. 

 Surirella manca Janisch. 

 Surirella mexicana A. Schmidt. 

 Campylodiscus angularis Greg. 

 Campylodiscus biangulatus Grev. 

 Campylodiscus crebrecostatus Grev. 

 Campylodiscus Daemelianus Grun. 

 Campylodiscus Ecclesianus Grev. 

 Campylodiscus latus Shadb. 

 Campylodiscus limbatus Breb. 

 Campylodiscus samoensis Grun. 

 Campylodiscus undulatus Grev. 

 Campylodiscus Wallichianus Grev. 



CLASS 3. FUNGI. 



Contributed by FRED J. SEAVER. 



Sub-class 1. PHYCOMYCETES. 

 Order 1. PERONOSPORALES. 



1. Albugo Candida (Pers.) Kuntze, Eev. Gen. PI. 2: 658. 1891. 



Aecidium candidum Pers. in Gmelin, Syst. Nat. 2: 1473. 1791. 



On Lepidium virfjinicum L., New Providence, Watling's Island : widely dis- 

 tributed, probably occurring wherever the host plants are found. 



2. Albugo Ipomoeae-panduranae (Sehw.) Swing. Jour. Myc. 7: 112. 1892. 



Aecidium Ipomoeae-panduranae Schw. Schr. Nat. Ges. Leipzig 1: 69. 1822. 



On Jacquemontia cayensis Britton, Inagua : distribution similar to the pre- 

 ceding. 



