12 
99. Barbarea vulgaris. Bitter winter cress. June. y. 12-18i. 
100. 
101. 
102. 
Vasculares. 
4. Fields. O. Ky. 
Arabis rhomboidea. Spring cress. May. w. LO—12i. 
4%. Woods. O. Ky. 
A. hirsuta.. Hairy tower mustard. June. w. 6-12i. 2. 
rs. bt. Upper Mississippi, Houghton. O. 
A. levigata. Smooth tower mustard. May. w. 1—2f. 
rs) Wor. Cin. O. 
A. canadensis. Sickle pod. June. w. 1—2f. rs. W. 
A. thaliana. Mouse earcress. Common wall cress. Ap- 
we 2—8i. ©. Ky. St. 
. A. lyrata. Ap.—June. w. 8—12i. ¢. Fields and hills. 
West Va. Paddock. N. W. Ter. Houghton. 
- Cardamine virginica. American water cress. May—Jul. 
6—18i. ©. br. mh. O. Ky. 
. C. rotundifolia. Round leaved cress. Jul. w. 1Q—I5i. 
4%. Wet grounds. Ky. St. 
C. uniflora. Single flowered cress. Ky. St. 
Dentaria diphylla. Tooth root. Trickle. Pepper root. 
May. w. 8 i. 2%. sw. Cin. O. Ky 
- D. laciniata. Jagged leaved tooth root. May. pale a — 
8 to 12 i. 24. sw. W. 
- D. heterophylla. Dwarf tooth root. Ju. pale p. 2to4i. — 
2%. Woods. West Penn. Nutt. West Va. Paddock. 
Alyssum dentatum. May. w. 6i. Y&. rs. Ky. 
A. ludovicianum. Ap. y. 2. Mo. Ter. Vutt. 
Draba caroliniana. Ap. w. 2to4i. ©. Side of mounds 
near St. L. Br. 
PD. arabizans. June. w. ¢. rs. W. Bk. 
Thlaspi bursa-pastoris. Shepherd’s purse. Ap.-—Oct. 
w. Oto 12i. ©. cf. O. Ky. 
. T. arvense. Penny cress. June. w. If. rb. Cin. O. 
Detroit, uit. 
T. tuberosum. May. r. 4 to 5i. West Penn. Vutt. 
Cakile americana, JVutt. American sea rocket. Jul.— 
Oct. p. ©. Shores of the great Lakes, /Vuit. 
. Hesperis pinnatifida. Wild rocket. June. p. 18 to 241. 
20. SW. We 
. H. matronalis. Dame’s violet. Garden rocket. Y%.— 
Shores of Lake Huron, Dr. Todd. 
. Sisymbrium officinale. Hedge mustard. June—Sept. y- 
Dbé 2 f,.)..td. W. 
S. canescens. Ap. y. 1 to2f. ©. Banks of the Miss. 
St. L. Bk. . 
. Coronopus didyma. Swine’s cress. Jul. lto 2f. O. 
Mo. Ter. Ni? 
