5- ( TRANS. ST. LOUIS ACAD. SCIENCE. 



E. CYPERINUM, L. Spec, 2d ed. 

 Wet places ; rare. 

 I have seen the specimens of this, but have none in my possession. 

 E. POLYSTACHYON, L. Spec. 



Low prairie; frequent. 

 Hkmicarpha micrantha, (Vahl) Britt. Torr. Bull. xv. 1888. 

 — Scirfus micranthus, Vahl. Enum. ii. — H. subsquarrosa, Nees in 

 Mart. Fl. Bras. ii. I, 1829. 

 Wet sand ; scarce. 

 Caiiex intumescens, Rudge, Trans. Linn. Soc. vii. 1804 (read 1803). 

 Low shady places ; common. 



C. Grayii, Carey, Amer. Jour. Sci. iv. 1821. 



Low woods ; common. 

 C. lupulina, Muhl. in Willd. Spec. iv. 

 Sloughs. 



Prof. Bailey notes one specimen as nearly typical ; another as approaching var. 

 pedunctrtata. 



C. lurida, Wahl. Konigl. Ac. Haudl. xxiv. 1803. 

 Sloughs; infrequent. 



Prof. Bailey says our specimens are a "depauperate form" of this species. 



C. Fii.iFORMis, L. Spec. 

 Swamps; abundant. 

 Var. lanuginosa, (Michx.) B.S.P. Cat.— C. lanuginosa, Michx. 

 Fl. — C. jiliformis, L., var. latifolia, Boeck. Linnrea. xli. 1S76-7. 

 Swamps ; frequent. 

 C. TRICHOCARPA, Muhl. in Willd. Spec. iv. 

 Marshes; infrequent. 

 Var. imberbis, Gray, Man. 5th ed. 



Swamps ; common. 

 Var. l.eviconica, (Dewey). — C. Icevlconica, Dewey, Amer. 

 Jour. Sci. xxiv. 1833. — C. trichocarpa, Muhl., var. Deweyi. Bailey 

 in Bot. Gaz. X.M8S3. 

 Low places; common. 

 Var. aristata, (R. Br.) Bailey in Bot. Gaz. x. 1883.— C. aris- 

 tata, R. Br. in Narr. Frankl. Exped. app. 

 Swamps; infrequent. 

 C. riparia, W. Curtis, Fl. Lond. iv. 1821. 



Low places; common. 

 C. fusca, All. Fl. Pedem. ii. 1785. 



Grassland; infrequent. 

 C. stricta, Lam. Diet. iii. 



Sloughs; common. 

 C. eongirostris, Torr. in Schwein. Ann. Tab. Car. (Ann. X. Y 

 Lye. i. 1823.) 



Shady places; abundant. 



