142 IOWi^ ACADEMY OF SCIENCES. 



stone in southwestern Wisconsin and southeastern Minne- 

 sota contain this fern, but never in large areas. There is 

 a great deal of this fern along the Kickapoo river, in the 

 vicinity of Bloomingdale, growing with SuUirdntia Ohionsis, 

 Mitella diphylla, Diervilla trifida, Vaccinium Fennsylvani- 

 cum, Pherjopteris Dryopteris and Lpcopodum lucidubim. 



Iowa: Allamakee County, "seven miles northeast of 

 Postville, on Balsam Fir bluff, Yellow river" — Orr; Winne- 

 shiek County — Lewis; Delaware County — MftcBride. 



Southwestern Wisconsin: La Crosse — Famniel; Rock- 

 ton — Pamuiel. 



Southeastern Minnesota: Pine Creek "not represented 

 by a specimen" — Pammel. 



Pellcea atro purpurea Link. Fil. Hort. Berol. 59. 1841. 



This fern is found on limestone rocks, confined to the 

 Mississippi river and its tributaries. 



Iowa: Allamakee County, Yellow River, "common on 

 limestone bluffs" — Orr; Lansing— /I/ /^s Kiufj; Ackley — 

 Hunt; Dubuque — Pammel; Monticello — P)esseij ; Muscatine 

 County, Wyoming Hills, "in clefts of a lime-bearing sand- 

 stone" — Reppert; Winneshiek County — Lewis; Fort Dodge, 

 "limestone cliffs" — Besseij; Iowa City— Hiichcock; Clin- 

 ton — Pammel; Cedar R^^id^— Pammel. 



Southwestern Wisconsin: Bloomingdale — Miss Pam- 

 mel and Miss Kiiuj. 



tribe ASPLENIE.f:. 



AsplenitoiunKjusfifoliumMichx. Fl. Bor. Am. 2: 265. 1803. 



Its distribution in northeastern Iowa indicates an inva- 

 sion from Wisconsin. It does not occur in southeastern 

 Minnesota (Houston county) so far as known. 



Iowa: Waukon Junction, "heavy woods at base of Mis- 

 sissippi river bluff"— 0>-r; Lansing, "similar situation" — 

 Miss King. 



