22 BULLETIN OF THE LABORATORIES 



50. Stellaria L. 



98. S. media Smith. Common Chickweed. 



Common everywhere. May 3, 1889; December 25, 1889; Jan- 

 uary 11, 1890; December 3, 1890; February 21, 1891; Jul)- 10, 

 1891. 



99. S. pubera Michx. Great Chickweed. 



This plant is given on the authority of Mr. W. E. Castle, May 6, 

 1889. 



100. S. longifolia Muhl. Long-leaved Stitchwort. 



Wet meadows, rare; Granger's swamp and a few swamps on the 

 Welsh Hills. May 28, 1888; May 27, 1890; June 26, 1891. 



51. Cerastium L. 



101. C. viscosum L. Mouse-ear Chickweed. 



Fields, common. August 24, 1888; December 25, 1889; Febru- 

 ary 1, 1890; May 31, 1 89 1. 



102. C. vulgaium L. Larger Mouse- ear Chickweed. 



This is given on the authority of Dr. F. O. Jacobs, who has both 

 this and preceeding species in his herbarium. 



103. C. nutans Raf. 



Gravelly soil and moist woods, somewhat common; railroad 

 bridge one mile east of Granville; Everett's woods, one mile south- 

 west of Granville. May 15, 1889; April 25, 1891. 



XIII. PORTULACEAE. 



52. Portulaca Tourn. 



104. P. oleracea L. Common Purlane. • 



Our most troublesome weed in gardens. June 10, 1884; May 

 15, 1887; July 6, 1888; August 1, 1890; June 17, 1891. 



53. Clavtonia Gronov. 



105. C. Virginica L. Spring Beauty. 



Very common in grassy woods. May 2, 1884; April 9, 1886; 

 April 10, 1888; April 13, 1889; February 15, 1890; April 1, 1891. 



XIV. HYPERICACEAE. 



54. Hypericum Tourn. 



106. H. Ascyron L. Great St. John's- wort. 

 River banks, rare; Toboso. July 15, 1891. 



