240 



Cyperaceae 



Carex 



Jan. 



Feb. 



Mar. 



Apr 



May 



June 



July 



Aug. 



Sept. 



Oct. 



Nov. 



Dec 



Miles 



50 



Map 480 

 Carex nigromarcjinata Schwein. 



55a. Carex artitecta var. subtilirostris Hermann. (Rhodora 40: 79. 

 1938.) Map 478. Known in Indiana only from the type collection: 

 Deam no. 54764, wooded slope along a small creek about 3 miles northwest 

 of Clinton, Vermillion County, May 5, 1934. 



Ind. and Tenn. 



56. Carex Emmonsii Dewey. (Carex albicans of authors, doubtfully of 

 Willd., Rhodora 40: 330-331. 1938.) Map 479. A coastal plain species 

 found sparingly in the northern counties of the lake area. It grows in 

 sandy open woods and on moist sandy borders of marshes or thickets in 

 the dunes, but its preferred habitat is dry black oak ridges. 



Indiana plants tend to have the culms longer and less arcuate and the 

 pistillate spikes fewer and less congested than in the characteristic plant 

 of the Atlantic Coastal Plain. 



N. S. to Fla. mostly along the coast, and about the Great Lakes. 



57. Carex nigromarginata Schwein. Map 480. A southern and eastern 

 species known in Indiana from a single collection : Deam no. 44074A, top 

 of the wooded bluff of the Ohio River, about a quarter of a mile north of 

 Fredonia, Crawford County, April 24, 1927. 



Conn, to Tenn., Fla., and La., mostly along the coast, and northw. in the 

 Mississippi Valley to Mo. and s. Ind. 



58. Carex communis Bailey. Map 481. Common in dry woods of all 

 types, particularly on rocky slopes. It is one of the earliest sedges to 

 flower and fruit. 



Deam no. 33881 (Gray Herbarium) is abnormal in having the leaf 

 sheaths prolonged laterally and ventrally, forming auricles reaching almost 

 to the summit of the ligule. Typically the leaf sheaths are deeply concave 

 at the mouth. 



N. S. to Minn., southw. to Ga., Ky., and Ark. 



