17 



CYPERACE^E. 



Cyperus diandius, Torr. 

 erythrorhizos, Muhl. 

 infiexus, Muhl. 

 ^^acuminatus, Torr. 

 phymatodes, Muhl. 

 strigosus, L. 

 Michauxianus. Schultes. 

 Schweinitzii, Torr. 



filiculmis, Vahl. 



"Hemicarpha subsquarrosa, Nees. 

 ffleocharis obtusa, Schultes. 



Engelmanni, Steud. var. detonsa, 

 [Gray ined. 



Mississippi bottoms, 1 mile south of Oquawka 

 rare with E. obtusa. Distinguished from that 

 species by its cylindrical spikes and the short 

 bristles of the perianth ; stigmas 2. Bristles 

 abortive or ouly their bnses present in the var. 



palustris, R. Br. 



intermedia, Schultes. 



acicularis, R. Br. 

 Scirpus validus, Vahl. 



fluviatilis, Gray. 



atrovirens, Muhl. 



lineatus, Michx. 



Eriophorum, Michx. 

 Fimbristylis capillaris, Gray. 



auturnnalis, R. & S. 



spadicea, var. castanea, Gr. 



One mile south of Oquawka. A!so in Hancock 

 county, Dr. S. B. MEAD : Kankakee county, 

 Prof. E. J. HILL. 



Scleria triglomerata, MX. 

 CAREX. 



(My Cyrices were all submitted to, and deter- 

 mined by, Mr. M. S. BEISB.) 



C. vulpinoidea, Michx. ' 

 ^^^crns-oorvi, Shuttlexv. 

 ftipata, Muhl. 



cephaloidea, De\v. 

 cepbalophora, Muhl. 

 rosea, Schk. 



arida, Schw. & Torr. 

 straminea, Schk. 

 aperta, Boott. 

 stricta. Lam. 



?adii, Dewey. 

 jrrisea, Wahl. 



- 'Davisii, Sehw. & Torr. 



Pennsylvauica, Lam. 

 ^-pubescens, Muhl. 



lanngiuosa, Michx. 

 trichocarpa, var. imberbis, Graf. 



hystricina, Willd. 



Grayii, Carey. 



lupuliua, Muhl. 



sqnnrrosa, L. 



utriculata, Boott. 

 -^*longirostris, Torrey. 



GRAMINE^E. 



Leersia Virginica, Willd. 

 *^ oryzoides, Swartz. 



lenticularis, Michx. 

 Zizania aquatica, L. 

 Alopecurus geniculatus, L. 

 Phleum pratense, L. 

 Vilfa aspera, Beanv. 



vaginseflora, Torr. 



rSporobolus heterolepis, Gray, 

 cryptandrus, Gray. 

 Agrostis perennans, Tuck, 

 scabra, Willd. 



Cinna arundinacea, L. 



Muhlenbergia glomerata, Trin. 

 Mexicans, Trin. 

 diftusa, Schreb. 



ijBrachyelytrura aristatum, Beauv. 

 .Stipa spaitea, Trin. 



iistida gracilis, Ell. 

 rtuberculosa, Nntt. 

 Spartina cynosuroides, Willd. 

 ^^Boutelona hirsnta, Lagasca. 

 , 0* * curtipendula, Gray. 

 Eleusine ludica, Gaertn. 

 -Tricuspis seslerioides, Torr. 

 purpurea, Gray. 



Sandy Prairies and Oak Barrens, with Bonteionc 

 hirsuta, Panicuni autumnale, <tc. ; common. 



Koeleria cristata, Pers. 

 I ^-^atonia obtusata, Gray. 

 lelica mutica, Walt. 

 Glyceria nervata, Trin. 

 flu i tans, R. Brown. 

 Poa pratensis, L. 

 sylvestris, Gray. 



