•J IS 



Cyperaceae 



Carex 



77. Carex digitalis Willd. (Including Carex digitalis var. macropoda 

 Fern. Rhodora 40: 400-401. 1938.) Map 500. Common in southern 

 Indiana; locally frequent in the northern counties. A woodland species 

 preferring dry beech woods but frequent also in dry or moist black or white 

 oak woods. 



The length of the peduncle of the staminate spike in this species, as in 

 Carex laxicvlmis, is extremely variable. An extreme form in which the 

 staminate spike is born on a peduncle overtopping the uppermost pistillate 

 spike and bract has been described by Professor Fernald as var. macropoda, 

 and under this variety he cites Deam no. 27837 from Crawford County 

 and no. 27119 from Perry County. In the Deam Herbarium, Deam no. 

 44066 from Perry County apparently represents this extreme of the species 

 but is too immature to be placed here with certainty. Among the numerous 

 intermediate collections Deam no. 20378 from Harrison County and no. 

 20592 from Washington County most nearly approximate var. macropoda. 



78. Carex laxiciiimis Schwein. Map 501. Fairly common in woods and 

 thickets. Plants intermediate between the species and the following 

 variety are not infrequent ; such are Deam nos. 844 ; 24750 ; 35708 ; 35924 ; 

 :;<;p»7; 10669; and 51825. 



Maine to Wis., southw. to N. C. and Mo. 



78a. Carex laxiculmis var. copulata (Bailey) Fern. {Carex copulata 

 (Bailey) Mack.) Map 502. Frequent in eastern Indiana in dry woods, 

 principally white oak and beech; rare in the western counties. The variety 

 is said to be a calciphile while the species prefers neutral or only slightly 

 calcareous soils. 



N. J. to Mich, and Mo. 



79. Carex stylollexa Buckley. (Carex la xi flora var. styloflexa (Buck- 

 ley) Boott.) Map 503. An eastern and southern species chiefly of the 

 Coastal Plain known in Indiana from a collection by Mrs. C. C. Deam: 

 in moist woods near Adams. Decatur County. May 13, 1911, no. 8149. 



