1 8 BULLETIN OF THE LABORATORIES 



33. Draba Dill. 



62. D. verna L. Whitlow Grass. 



Gravelly and sandy soil, common. April 4, 1887; April 8, 

 1889; January 6, 1890; February 20, 1891. 



34. Nasturtium R. Br. 



63. N, officinale R. Br. True Water Cress. 



Small streams and ditches, common and becdming more abund- 

 ant each year. June 5, 1887; June 4, 1890; July 8, 1891. 



64. N. obtusum Nutt. 



Rare. May 20, 1887; August 27, 1888. 



65. N. palustre D C. Marsh Cress. 



Wet meadows or swamps, common. June 24, 1889; July 15, 

 1890; August 31, 1 89 1. 



66. N. palustre D C. var. hispidum Gray. 



Wet places, rare; Licking Reservoir. July 9, 1889; August 8„ 

 1891. 



67. N. lacustre Gray. Lake Cress. 



Licking Reservoir, growing in all parts of the Reservoir, but 

 nowhere very abundant. June 20, 1890; August 6, i8gi. 



68. N. Armoracia Fries. Horseradish. 



Wet places; this plant has escaped to a few swamps around Gran- 

 ville and is very abundant in the shallow parts of the Old Reservoir. 



35. Barbarea R. Br. 



69. B. vulgaris R. Br. Yellow Rocket. 



Fields and meadows, common. May 9, 1888; May 10. 1889; 

 May 19, 1890; June 10, 1891. 



36. Sisymbrium Tourn. 



70. S. officinale Scop. Hedge Mustard. 



Common, everywhere. May 11, 1889; December i, 1889; 

 June 26, 1890. 



37. Th,elypodium Endl. 



71. T. pinnatifidum Watson. 



Moist places; New Cemetery, Granville; Arbutus Ridge; more 

 abundant in eastern part of the county. May 30, 1887; June 2, 

 1890; June 10, 1 89 1. 



