Studies in North American Peronosporales— IV. Host index 



Guy West Wilson 



The present host index of the North American species of the 

 order Peronosporales has been prepared with a view of bringing to- 

 gether in a convenient form for reference all the published hosts of 

 these fungi. The list has been made as complete as possible and 

 such cross-references as will facilitate its use are given, while care 

 has been taken not to overburden the index with useless synonyms. 

 No new hosts are recorded in this index and no attempt is made 

 to unravel tangles of synonymy or specific limitations, but the 

 ■naex represents as completely as possible our present knowledge 

 of the host distribution of the commonly recognized American 

 species of the order. 



AIZOACEAE 



Tkunthema Portulacastrum L. 

 Albugo Trianthemae G. W. 



Wilson 



ALLIACEAE 



Caspary 

 C. longipe 



A tuuM Cepa L. ' 



p eronospora Schleideni Unger. 



ALSINACEAE 



e *astiu m cerastioides (L.) Britton. 

 cJ. er °" 0spora Alsinearum Caspary. 



T IUM LONGIPEDUNCULATUM Muhl. 



reronospora Alsinearum 

 l,STIl ' M nutans Raf. ; see 



Cera Hcu,atum Muhl. 



Wiuif trigynum Vill.; see C. ceras 



Ostium viscosum L. 



eronospora Alsinearum 



Ostium S p. 



Sii tt l r0nospora Alsinearum Caspary. 

 * E antirrhina L. 



^°*ospora Arenariae 

 » *arl. 



Sll **B sp. 



Per °nospor a 

 5ft FarL 



^ ARVE NSIS L. 



er °nospora Alsinearum Caspary 



Caspary, 

 Caspary, 



macrospora 



Arenariae macrospora 



Tissa leucantha (Robins.) Greene. 



Albugo Lepigoni (de Bary) Kuntze. 

 Tissa marina (L.) Britton. 



Albugo Lepigoni (de Bary) Kuntze. 



ALLIONIACEAE 



Allionia incarnata L. ; see Wedclia incar 



nata (L.)Kuntze. 

 Allionia nyctaginea Michx. 



Peronospora Oxybaphi E. & E. 

 Boerhaavia anisophylla A. Gray. 



Albugo platensis (Speg.) Swingle. 

 Boerhaavia diffusa L. 



Albugo platensis (Speg.) Swingle. 



Boerhaavia erecta L. 



Albugo platensis (Speg.) Swingle. 



Boerhaavia hirsuta Willd. 



Albugo platensis (Speg.) Swingle. 

 Boerhaavia paniculata Rich. 



Albugo platensis (Speg.) Swingle. 

 Boerhaavia Sonorae Rose. 



Albugo platensis (Speg.) Swingle. 

 Boerhaavia spicata Choisy. 



Albugo platensis (Speg.) Swingle. 

 Boerhaavia viscosa Lag. & Rodr. 



Albugo platensis (Speg.) Swingle. 

 Boerhaavia Xanti S. Wats. 



Albugo platensis (Speg.) Swingle. 

 Oxybaphus nyctagineus Sweet; see Allio- 

 nia nyctaginea Michx. 

 Wedelia incarnata (L.) Kuntze. 



Albugo platensis (Speg.) Swingle. 



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