302 Juncaceae Juncus 



EXCLUDED SPECIES 



1. Juncus coriaceus Mack. (Bull. Torrey Bot. Club 56: 28. 1929.) 

 (Juncus setaceus of authors, not Rostk.) Reported from Lake County by 

 Pepoon in the "Flora of the Chicago Region" but no specimen could be 

 found. 



Del. to Fla. and La., usually in brackish habitats. 



2. Juncus tenuis Willd. (Bull. Torrey Bot. Club. 56 : 25-27. 1929.) ) Jun- 

 cus dichotomies Ell.) This species of the Coastal Plain has been reported 

 many times from Indiana but no authentic material from the state could be 

 found. The reports from Jasper and La Porte Counties were based upon 

 specimens of /. Greenei and that from Gibson County upon an immature 

 specimen of /. macer. Other reports likewise were probably based upon 

 errors in indentification. 



Conn, to Fla. and Argentina. 



3. Juncus brevicaudatus (Engelm.) Fern. (Juncus canadensis var. 

 brevicaudatus Engelm. and Juncus canadensis var. coarctatus Engelm.) 

 Reported from Lake County by both Pepoon and Peattie but the one speci- 

 men found which had been referred to this species (a collection of Umbach's 

 from Pine, Lake County, labeled Juncus canadensis var. coarctatus, Uni- 

 versity of Wisconsin Herbarium) is /. alpinus var. rariflorus. Indiana is 

 considerably south of the known range of J. brevicaudatus. 



Newf. to Minn., southw. to Conn., Pa., and W. Va. 



4. Juncus debilis Gray. (Juncus acuminatus var. debilis (Gray) 

 Engelm.) No specimen could be found to confirm the report from Vigo 

 County by Blatchley of this eastern and southern species. A specimen in 

 the Wabash College Herbarium labeled Juncus acuminatus var. debilis 

 (Coulter no. 1918 from Hanover) was probably the basis of Barnes' report 

 from Jefferson County. This specimen is /. diffusissimus. 



R. I. to Fla., Miss., and Ark. 



