150 IOWA ACADEMY OF SCIENCES. 



Britton and Brown's Illustrated Flora gives the range 

 of this species as Ontario to Nebraska and Mexico, west to 

 Montana and Arizona. So far as known this species occurs 

 in but two counties in Iowa, namely Winneshiek and Des 

 Moines. Our specimens are from Winneshiek county, 

 where the species was found in wet ravines and near or in 

 calcareous springs. We also observed the species in Des 

 Moines county below Burlington in the ravine leading to 

 Indian spring. Dr. Parry in Owen's report says: "This 

 peculiar northwestern species is only found floating on the 

 pure issue of the coldest springs, which it mats with its 

 succulent foliage, continuing to put forth its yellow blos- 

 soms through the entire flowering season." 



Arthur, Contr. Fl. Iowa, p. 22; Fitzpatrick, Proc. Iowa Acad. Sciences, 

 Vol. 5, p. 124 and p. 157; Manual Fl. Plants of Iowa, p. 123. 



MONNIERA P. Br. Civ. & Nat. Hist. Jam. 2(39, jj/. ^8, /. 3. 

 1755. 



[Herpestis Gaertn. Fruct. & Sem. 3:185, pi. 214. 1805.] 



Ours a perennial by stolons, with opposite entire leaves, 

 and small blue peduncled axillary flowers. Calyx 5-parted. 

 Corolla 2-lipped; the upper lip 2-lobed, the lower lip 

 3-lobed. Stamens 4, didynamous, included. Capsule 

 oblong, obtuse, many-seeded. 



MoNNiERA ROTUNDiFOLiA MicJtx. Fl. Bor. Am. 2:22. 1S03. 



Herpestis rotundifolia Pursh, Fl. Am. Sept. 418. 1814. 



Stems creeping, spreading, simple or branched; villous- 

 pubescent; leaves obovate to orbicular, palmately veined; 

 flowers 1 or 2 in the axils of the leaves. 



According to Britton and Brown's Illustrated Flora this 

 species ranges from Illinois to Nebraska, south to Tennes- 

 see and Texas. The season of bloom is from June until 

 September, Type locality: "Hab. in regione Illinoensi." 



Messrs. Nagel and Haupt reported the species from 

 Scott county; Messrs. Barnes, Reppert, and Miller from 

 Muscatine county, giving the locality as a shallow pond 

 near Muscatine; and Professor Shimek from in and around 



