IOWA ACADEMY OF SCIENCES. 193 



well distributed, and is infrequently found. Our material is 

 from Winneshiek, Fayette, Johnson, Poweshiek, Jasper, and 

 Decatur counties; specimens were examined from Muscatine 

 county; and it is reported from Delaware county by Shimek and 

 from Story county by Hitchcock. Orchis bracteata Willd. (1805); 

 Habenaria bracteata R. Br. (1813); H. viridis R. Br. var. bracteata 

 Reichenb. (1851). This species presents considerable variation 

 in the form of its leaves and in the arrangement of its flowers. 



Gray's Manual, sixth edition, p. 507; Arthur's Flora of Iowa, 

 p. 31, edition 1876; Bui. Nat. Hist., S. U. I., Vol. 3, p. 212; 

 Proc. Iowa Acad, of Sciences, Vol. 4, p. 102; Vol. 5, pp. 128 

 and 165. 



Habenaria clavellata (Mx.) Spreng. Our specimens are from 

 Fayette county and were collected by Professor Fink who 

 reports, "Border of woods, rare. " There are specimens in the 

 S. U. I. herbarium from Muscatine county, contributed by Mr. 

 Reppert who, in a note with the specimens, says, "Infrequent, 

 first collected by Kenneth MacKensie, 1893; these July and 

 September, 1894. " No other localities are at present known. 

 Orcliis clavellata Mx. (1803); 0. tridentata Willd. (1805); H. 

 tridentota 1100]^. (1825); H. clavellata S-preng. (1826). 



Proc. Iowa Acad, of Sciences, Vol. 1, part 4, p. 103. 



Habenaria flava (L.) A. Gray. Our only Iowa specimen is 

 from Muscatine county, collected by Mr. Reppert. Orchis flava 

 L. (1753); 0. virescens Willd. (1805); Habenaria virescens Spreng. 

 (1826); H flava A. Gray. (1840). 



Habenaria leucophaea (Nutt.) A. Gray. This species is of 

 frequent occurrence in the southern portion of the state. It 

 may be collected during the month of June in moist low places 

 in prairie soil. In one corner of Rose Hill cemetery, Lamoni, 

 Decatur county, this species is frequent, as well as in many 

 other localities in the county where the prairie soil is undis- 

 turbed. About two miles east of Humeston, Wayne county, 

 along the Keokuk & Western track many specimens were col- 

 lected on June 29, 1899. Many were three feet high. Within 

 the railway right of way seems to be this species 'only refuge. 

 Jasper and Emmet counties are represented by specimens in 

 our collection. The S. U. I. herbarium has a specimen from 

 Hancock county. The species is reported from Fayette (Fink), 

 Johnson (Shimek), Story (Hitchcock), and Cherokee (Pammel) 

 counties. Orcliis leucophaea Nutt. (1833-'37); Habenaria leuco- 

 phaea A. Gray (1867). 

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