Climate of Middle Illinois. 61 



Liliaceae. In N, Am. 50 Geu. 246 Spec. 



Trillium recurvatum Beck, woods V. 5 Ind. — Up.Miss. 



Trillium erectum L. var. album woods I. 2 I^.E.— N.Ca. — Up.Miss. 



Trillium nivale Ridd. woods IV. 4 Oh.— Up.Miss. 



Uvularia grandillora Sm. woods V. 4 Yt.— All. (Ga.)— Up.Mo. 



Smilacina racemosa Desf. woods, copses Y. 4 N.E.— All.— Cal. Or. — Sask. 



Smilacina stellata Desf. bottom, banks III. .3 N.E.— N.Mex. Cal. — Arct. 



Polygonatum giganteum Dietrich, woods Y. 4 N.E.— La.— ll.Mts.— Sask. 



Lilium philadelphicum L. prairie, open woods Y. 5 N.E.—N.Ca.— Up.Mo. 



Lilium superbum L. copses, banks III. 3 N.E.— All. (Ga.)— La.— Up.Miss. 



Erythronium albidum Xutt. woods Y. 5 iSf.Y.— Up.Miss. 



Scilla Fraseri Gr. prairie, banks Y. 5 Oh.— La. — W.Tex.— Or. 



Allinm tricoccum Ait. shady hillsides III. 4 N.E. — N.Ca. — Up.Miss. 



Allium canadense Kalm. wet prairie, banks Y. 4 Atl. — Up.Mo. G. — Can. 



Juncaceae. In N. Am. 2 Gen. 61 Spec. 



Juncus tenuis Willd. bottom, woods, roadsides, etc. YII. 8 N.E.— Fla. — Cal. 

 Juncus acuminatus Michx. var. legitimus swamps Y. 5 N.E.— Ga.— Ark. — 



Up.Miss. 

 Juncus canadensis Gay. var. brachycephalus moist places Y. 6 N.E. — 



Up.Miss.— N.F.—Huds. 

 Juncus nodosus L. var. raegacephalus swamps, banks lY. 4 N.F.— La. — 



Cal. 



Pontederiacese. In N Am. 3 Gen. 4 Spec. 



Pontederia cordata L. shallow waters, banks II. 10 Atl.— Miss. G.— Can. 

 Schollera graminea Willd. river, low banks YI. 8 jST.E.- N.Ca.— Mex. 



CommelynaceaB. In N. Am. 3 Gen. 12 Spec. 



Tradescantia virginica L. prairie, copses Y. 5 Atl. — W.Tex. G.— Can. 

 Commelyna cayennensis* Rich, banks I. 3 Up.Miss.— La. 



Oyperaceae. In N. Am. 20 Gen. 448 Spec 



Cyperus diandrus Torr. bottom Y. 10 ]!^E.—N.Ca.— W.Tex.— Up.Miss. 



Cyperus erythrorhizus Muhl. bottom Y. 5 Pa.— Fla.-Ariz.— Up.Miss. 



Cyperus inflexus Muhl. sandy banks Y. 8 Atl.— N.Mex.— Cal.— 52°]SJ'.L. 



Cyperus acuminatus Torr. bottom III. 3 111.— Up.Mo. 



Cyperus phymatodes Muhl. bottom, sandy banks Y. 8 Yt.— Fla.-Ariz.— 

 Cal. 



Cyperus strigosus L. bottom Y. 6 Atl.— N.Mex. G.— Can. 



Cyperus Michauxianus Schult. bottom Y. 6 Atl. — Pacif. G.— Can. 



Cyperus flliculmis Vahl. dry prairie, hillsides Y. 4 Atl.— VV. Tex. G.— Can. 

 tCyperus ovularis Torr. sandy soil I. 2 N.Y.— Up.Miss. Fla. — W.Tex. 



Dulichium spathaceum Pers. bottom, wet banks II. 8 Atl. — Miss. — Nebr. 



Hemicarpha subsquarrosa** Nees. sandy banks Y. 6 N.Y. — Fla. N.Mex. — 

 R.Mts. 



Eleocharis obtusa Schult. bottom Y. 8 N.E.— Up.Miss. Fla.— W.Tex. 



Eleocharis palustris R. Br. swamps X. 10 Atl.— Pacif. G.—60°N.L.— Green- 

 land. 



Eleocharis compressa Sull. bottom III. 6 N.Y.— Up.Mo. 



Eleocharis Wolfii Gr. bottom II. 6 111. 



Eleocharis intermedia Schult. swamps, sandy banks Y. 5 N.Y. — Ga. — Miss. 



*Commellyna cayennensis is found on a single place in a wood. It is not uncommon in culti- 

 vation, and therefore it is doubtfull whether it is indigenous or not. It is common in South Illinois 

 and certainly an annual, although it may occasionally become perennial by striking roots from the 

 joints. 



••■■■= Boeckeler (Linnaea 30 499) reunited this genus with Scirpus, and our species as Scirpus 

 micrauthus Vahl., the oldest name. 



