I give, as near as I can recollect, his own words : In a walk through the fields I came to a wheat stubble covered with a dense growth of Ambrosia, Artimisircfolia, in a state just ready to discharge its pollen. I hestitated, but finally concluded to cross ; at once I found great difficulty in breathing and when I reached the other side, I was completely prostrated and was obliged to sit for some time, and the experiment was followed by one of the most severe attacks of Hay Fever I have ever experienced.

Xanthium, Tourn. (Cocklebur.)

X. strumarium, L. Spyten Duyvil, (Leggett.)

Var. echinatum, Gray. Y. spinosum, L. Coast. (Nat. from the south.)

794 REPORT OF THE FLORA

Heliopsis, L. (Tick-seed.) H. lxvis, Pers.

Var. scabra. White Plains. A single plant in the nothcrn part of Sc-rdale, near White Plains, found by Miss A. McCabe.

Rudbeckia, L. (Cone-flower.)

R. laciniata, L. Fields, sparingly throughout. R. hirta, L. Fields, frequent.

Helianthus, L. (Sun-flower.)

H. giganteus, L. Swampy places. H. strumosus, L. Damp thickets. H. divaricatus, L. Edges of woods. H. decapetalus, L. Along streams.

H. tuberosus, L. Escaped from cultivation. The tubers of this species are used for pickles.

Coreopsis, L. (Tick-seed.)

C. tricosperma, Mx. Wet places. Bidens, L. (Bur-Marigold -- Pitchfork.)

B. frondosa. L. Damp places.

B. connata, Muhl. Road-sides.

B. chrysanthemoides, Mx. New Castle.

B. bipinnata, L. Road-sides and fence rows.

Helenium, L. (Sneeze-weed.) H. autumnale, L. Meadows.

Galinsoga, Ruiz & Par.

G. parviflora, Car. (Adv., from S. America.) Maruta, Cass. (May-weed.)