15 
Arabis Drummondii, Gray. 
Lewiston. Not common. 
BARBAREA PRECOX, R. Br... eee eee ee eee Harty Winter Cress. 
Brock’s monument, Ontario. Macoun. 
Barbarea vulgaris, R. Br...............-...05- Winter Cress 
Road sides near the falls. 
Erysimum cheiranthoides, L......... Worm-seed Mustard 
Margin of the river above the Falls. 
SySIMBRIUM OFFICINALE, SCOP........ee see eee ....-Heper Musrarp. 
Road sides and waste places near the Falls. 
Brassica SINAPISASTRUM, Boiss............. 000085 Mustarp. CHARLOCK. 
Abundant on both sides of the river. 
Brassica NiGRA, Koch... 2.0.0... eee eens Buack Musrarp. 
Between the Falls and DeVaux College. 
NASsTURTIUM OFFICINALE, R. Br.... 0.0.22... ee ee ee ee Warer Cress. 
Near the river’s edge above the Falls. Clifton, Ontario. 
Nasturtium palustre, DC ...................... Marsh Cress 
In damp places above the Falls. 
Nasturtium lacustre, Gray .......... Lecce eee eees Lake Cress 
In the river above the Falls. 
Nasturtium ArmoractA, EF'rieS............. 0000 eee cee Horse Rapisu 
“At Niagara Falls.” Macoun. 
CapseLua Bursa~pasroris, Moench...............20-- SHEPHERD'S Purse 
Common everywhere. 
Lepidium Virginicum, L................ Wild Peppergrass 
Road sides, near the village. 
Lepipium camprsTre, R. Br ....... 0. eee ee ees Fietp PEPPERGRASS 
“Olifton, near Niagara Falls.” Macoun. 
CAPPARIDACEZ:. 
Polanisia graveolens, Raf. 
« Abundant on the sands at Niagara.” Macown. 
Plentiful at the foot of Lake Erie. 
CISTACEA. 
Helianthemum Canadense, Michx.............. Frost Weed 
Common in dry places in Western New York, no doubt occurring 
near DeVaux College, and at Lewiston. 
Lechea major, Michx......... eee cece eens be eeee Pinweed 
Probably occurs with the last. 
