Fink: LICHENS IN THE Upper Mississipp1 VALLEY 308 
Sphinctrina tigillaris B. and Br.—Ia. 
Coniocybe pallida (Pers.) Fr.—Minn., Ia., Ill. 
Endocarpon miniatum (L.) Schaer.—Minn., Ia., Ill., O., Neb., 
Ind., Wis. (P 
Endocarpon miniatum Manitense Tuck.—Ill. 
Endocarpon miniatum complicatum Schaer.—Minn., Ia., Ill. 
Endocarpon miniatum Muhlenbergii Ach.—Minn., Ia., Ill., O. 
Endocarpon fluviatile DC.—Minn., O. 
Endocarpon arboreum Schwein.—Minn., Ia., Ill., O. 
Endocarpon cinereum Nees.—1ll. 
Endocarpon hepaticum Ach.—Minn., Ia., Ill. 
Endocarpon rufescens Ach.—Ill., Neb. 
Endocarpon pusillum Hedw.—Minn., Ia., Ill., O., Neb., Wis (P..) 
Endocarpon pusillum Garovagli Kph.—Minn., Ia., Ill. (F.). 
Thelocarpon prasinellum Nyl.—Minn., Ia. 
Segestria Lauveri (Flk.) Tuck.—Ill. 
Staurothele Drummond Tuck.—Minn. 
Staurothele umbrina (Wahl.) Tuck.—Minn., Ia., Neb., Wis. (P.). 
Staurothele diffractella (Nyl.) Tuck —Minn., Ia., Ill. 
Trypethelium virens Tuck.—O. 
Sagedia oxyspora (Nyl.) Tuck.—Minn., Ill., O. 
Sagedia castrensis Tuck.—Ill. 
Sagedia lactea Kbr.—1ll. 
Verrucaria epigaea (Pers.) Ach.—Minn., Ia., Ill. 
Verrucaria nigrescens Pers.—Minn., Ia., TIL, O. 
Verrucaria fuscella Fr.—Minn., E Ill, Wis. (P-Y 
Verrucaria prospersella Nyl.—1ll. 
Verrucaria rupestris Schrad.—Ia., Ill., O., Neb. 
Verrucaria rupestris subalbicans Leight.—Neb. 
Verrucaria muralis Ach.—Minn., Ia., Ill, O., Wis. (P.), Kan. 
Verrucaria pyrenophora (Ach.) Nyl.—Ia., Ill. 
Verrucaria viridula Ach.—Ill. 
Pyrenula punctiformis (Ach.) Naeg.—Minn., Ia., Ill., Neb. 
Pyrenula punctiformis fallax Nyl.—Minn. 
Pyrenula glemmata (Ach.) Naeg.—Minn., Ia., Ill., O. 
Pyrenula hyalospora (Nyl.) Tuck.—Minn., Ia 
Pyrenula nitida Ach.—Minn., Ia., Ill., O., Neb. 
