Climate of Middle Illinois. 63 



Carex filiformis L. swamps III. 5 N.E.— Up.Mo.— 54° N.L. 



Carex lanuginosa Michx. wet prairie V. 5 N.E.— Ky.— N.Mex.— Cal.— Mc- 



Kenzie. 

 Carex riparia Curt, swamp I. 5 Fla. N.E.— Up.Miss. 

 Carex trichocarpa Muhl. bottom II. 5 N.E.— Ga.— Up.Miss. 

 Carex comosa Boot, swamp I. 4 X.E. — Up.Miss. 

 Carex histricina Willd. wet banks, bottom VII. 7 IST.E. — Up.Miss. Ga.— 



N.Mex. 

 Carex tentaculata Muhl. bottom VII. 6 Atl. — Miss.G. — Can. 

 Carex Grayi Carey bottom V. 4 N.Y. — Up.Miss. 

 Carex lupulina Muhl. bottom V. 5 Atl. — Miss.G. — Can. 

 Carex lupuliformis Sartwell bottom I. .3 N.Y. — Del. — 111. 

 Carex monile Tuck, swamps II. 3 N.E. — Ky. — 65° N.L, 

 Carex squarrosa L. bottom I. 4 N.E.— All. (Ga.) — Up.Miss. 

 Carex longirostris Ton. woods III. 5 N.E. — li.Mts. — 54° N.h. 



GraminesB. In N. Am. 103 Gen. 615 Spec. 



Leersia oryzoides Sw. banks V. 1 Atl. — Miss. G. — 54° N.L. 

 Leersia virgmica Willd. bottom V. 5 Atl. — Miss. G. — Can. 

 Leersia lenticularis Michx. bottom II. 4 Va.— Fl.— La. — Up.Miss. 

 Zizania aquatica L. swamps, shallow waters IV. 8 Atl. — Miss. G.— Can. 

 Alopecurus geniculatus var. aristulatus Michx. fields, waste places III. 3 



N.E.— Fla.— Up.Miss. 

 Vilfa aspera Beauv. sandy soil IV. 4 Atl. — Miss. 



Vilfa vaginaetlora Torr. sandy soil VI. 5 N.E. — N.Ca. — Ark.— Up.Miss. 

 Sporobolus heterolepis Gr. dry hillsides V. 6 N.E. —Up.Miss. 

 Agrostis perennans Tuck, bottom IV. 5 Atl. — Miss. 

 Agrostis scabra Willd. dry prairies III. 5 N.E. — Cal. — Alaska Pa. — La. 

 Agrostis vulgaris With, open woods V. 5 N.Y.— Ark.— K.Mts.— 55° N.L. 

 Agrostis alba'L. bottom IV. 3 N.Y.— Cal.— Huds. 

 Cinna arundinacea L. bottom, banks V. 5 Atl. — Miss. G.— 55^ N.L. 

 Muhlenbergia sobolifera Gr. woods 11. 3 Vt.— Up.Miss. 

 TMuhlenbergia glomerata Trin. swamps I. 4 N.E. — Up.-Miss. — Ark. — Sask. 



—Or. 

 Muhlenbergia mexicana Trin. bottom V. 6 N.E. — N.Ca. — Ark.— Up.Miss. 

 Muhlenbergia silvatica T. Gr. bottom III. 6 N.E.— Up.Miss.— W.Tex.— 



Nevada. 

 Muhlenbergia Willdenovii Trin. woods II. 3 N.E. —All. (Ga.) — Up.Miss. 

 Muhlenbergia diffusa Schrad. bottom VI. 8 Atl. — Cal. G. — Can. 

 Braehyelytrum aristatum Beauv. bottom III. 4 Atl.— Miss. 

 Calamagrostis canadensis Beauv. bottom II. 7 N.E.— All. (Ga.)— R.Mts.— 



Arct. 

 Oryzopsis melanocarpa Muhl. sandy hillsides I. 4 N.E.— Up.Miss. 

 Stipa spartea Trin. prairie V. 5 111.— N.Mich.— Up.Mo.— R.Mts.— Nevada. 

 Spartina cynosuroides Willd. bottom V. 10 N.E.— Up.Mo.— Arct. 

 Bouteloua curtipendula Gr. dry prairie VI. 6. N.Y. — Mex. 

 Tricuspis seslerioides Torr. dry prairie IV. 5 N.Y.— Fla.— La. — Up.Miss. 

 Diarrhena americana Beauv. shady woods IV. 4 Oh. — Up.Miss.— Ark. 

 Koeleria cristata Torr. dry prairie V. 7 Fa.— Cal.— Or.— 54'' N.L. 

 Eatonia obtusata Gr. dry prairie III. 5 Pa.— Fla.— Cal.— Or. 

 Eatonia pennsylvanica Gr. woods V. 5. N.E.— All. (Ga.)— Up.Mo. 

 Melica mutica Walt, copses, woods V. 4 W.Pa.— Fla.— R.Mts. 

 Glyzeria nervata Trin. banks VI. 8 Atl.— Miss. 

 Glyzena fluitans R.Br, creeks III. 6 N.E.— All. (Ga.)— Miss.— 54° N.L. 



