64 



IOWA ACADEMY OF 80IENCES. 



of clear clays or partly cloudy days in western Iowa is 

 shown in the table prepared for the year 1898 by Mr. J. R. 

 Sage and which has been given under the heading sun- 

 shine and wind. It is not as marked as one would expect. 



PHENOLOGICAL DATA FOR WESTERN IOWA. 



Crescent. May 3, 1901. 

 Sisyrinchiinn angiistifolia. 

 EUi%ia nycfelea . 

 Staphylea trifolia. 



April 27. 

 Pruiius Americana, 

 l^iola palmata var. cucullata. 

 Viola pedatifida . 



April 28 

 Lithospennurn canesccns. 

 Lithospermuni angustifoliiiin . 

 Cratcrgus mollis. 

 Frag aria Virgijiiana. 

 Sisymbrium cajiescens. 



May 4. 

 Castillea sessifolia . 

 Astragalus caryocarpus . 

 Pyrus malus. 



May 5. 

 Prunus Virginiana. 



Mr. John J. Thornber* prepared a phenological record of 

 some plants found in Nebraska City, Nebraska, which is 

 south of Council Bluffs, but typical of the loess region. 



Missouri Valley, May 19, 1901, 

 Ceaiwlhus ovaliis. 

 Anemone Pennsylvanica. 

 Senecio aureus 



May 20. 

 Erigeron atinuus. 

 Phlox pilosa . 

 Utricularia vulgaris. 



June 18. 

 Echinacea angiistifolia . 

 Asclepias tuberosa. 

 Asclepias syriaca. 



June 20. 

 Cacalia tuberosa. 

 Liliuni Philadelphicum. 



Cotivolvulus septum. 



April 27, 1900. 

 Viola pedatifida 

 Lithospertnum canescens 



May 4, 1900. 

 Carex festucacecs 



May 7, 1899. 

 Comafidra umbellata 



May 10, 1900. 

 Ceanothus ovatus 



May 20, 1900. 

 Eleocharis palustris 

 Juncus tenuis 



May 28, 1900. 

 Chenopodiufn album 

 Eatonia obtusata 



June 7, 1901. 

 Coreopsis palmata 

 Cornus asperifolia 



June 21, 1900. 

 Helianthus annuus 



June 22, 1900. 

 Lilium Canadense 

 Desmodium Illinoense 



July 15, 1900. 

 Scutellaria lateriflora 



August 4, 1900. 

 Solidago Canadensis 



August 30, 1900. 

 Centiana puberula 



September 17, 1900. 

 Aster azureiim. 



* The prairie grass formation in Region I . Bot. Survey Nebraska. 5 : 137. 



