Climate of Middle Illinois. 61 



LiliaoesB. In N. Am. 50 Geu. 246 Spec. 



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



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



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



Uvularia grandiflora Sm. woods V. 4 Vt.— All. (Ga.)— Up.Mo. 



Smilacina racemosa Desf. woods, copses "V. 4 N.E.— All.— Gal. Or.— Sask. 



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



Polygonatum giganteum Dietrich, woods V. 4 N.E.— La.— B.Mts.— Sask. 



Lilium philadelphicum L. prairie, open woods V. 5 N.E.—N.Ga.— Up.Mo. 



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



Erythronium albidum Nutt. woods V. 5 N.Y.— Up.Miss. 



Scilla Eraser! Gr. prairie, banks V. 5 Oh.— La.— W.Tex.— Or. 



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



Allium canadense Kalm. wet prairie, banks V. 4 Atl.— Up.Mo. G.— Gan. 

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



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



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

 Up.Miss. 



Juncus canadensis Gay. var. braohycephalus moist places V. 6 N.E.— 

 Up.Miss.— N.F.—Huds. 



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

 Oal. 



Pontederiaoese. 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 VI. 8 N.E.— N.Ca.— Mex. 



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



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

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



OyperacesB. In N. Am. 20 Gen. 448 Spec- 



Cyperus diandrus Torr. bottom V. 10 N.E.—N.Ca.— W.Tex.— Up.Miss. 



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



Cyperus inllexus Muhl. sandy banks V. 8 Atl.— N.Mex.— Gal.— .52°]Sr.L. 



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



Cyperus phymatodes Muhl. bottom, sandy banks V. 8 Vt.— Fla.— Ariz.— 

 Cal. 



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



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



Cyperus filiculmis Vahl. dry prairie, hillsides V. 4 Atl.— W.Tex. G.— Can. 

 fCyperus 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 V. 6 N. Y.— Fla. N. Mex.— 

 R.Mts. 



Eleocharis obtusa Schult. bottom V. 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 V. 5 N.Y.— Ga.— Miss. 



♦Oommellyna cayennensis is found on a single place in a wood. It is not uncommon in culti- 

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

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

 joints. 



<"* Bocckeler (Linnaca 86.499) reunited this genus with Scirpus, and our species as Scirpus 

 mlcranthus Vahl., the oldest name. 



