1899] Farlow, — Poisoning by Agaricus illudens 43 
Carex pedunculata, Muhl. Rich woods at base of Hatchet Hill, 
Southbridge, May 15. 
Cladium mariscoides, Torr. Lead Mine Pond, Sturbridge, July 31. 
Eleocharis Robbinsii, Oakes. In about two feet of water in Lake 
Chaubunagungamaug, Webster, August 14. 
Rhynchospora alba, Vahl. Cedar-swamp, Charlton, July 16 ; sphag- 
nous bogs and shore of Lead Mine Pond, Sturbridge, July 31; wet 
meadow, Southbridge, August 20. 
Juncus bufonius, L. Roadside ditches, low grounds, etc., South- 
bridge, July 9. 
Polygonum Careyi, Olney. Damp sand near brickyard, South- 
bridge, August 21. 
Polygonum hydropiperoides, Michx. Slow-flowing brooks, in meadows, 
Southbridge, August 20; Charlton, September 9. 
Rumex verticillatus, L. Cedar-swamp, Charlton, July 16. 
Arenaria serpyllifolia, L. Roadside in Hillside Park, Southbridge, 
June 12. 
Potentilla recta, L. Same locality and date. 
Linum Virginianum, L. Dry woods, road sides, etc., Southbridge, 
July 6; Sturbridge, July 31. 
Bartonia tenella, Muhl. Sphagnous bog, Sturbridge, July 31 ; dry 
woods, Southbridge, August 7. 
Gerardia purpurea, L., var. paupercula, Gray. Shore of Lead 
Mine Pond, Sturbridge, August 28; damp roadsides, Charlton, Sep- 
tember 9 ; Princeton, September ro. 
Aster infirmus, Michx. Dry woods on the west slope of Asnebum- 
skit Hill, Paxton, September 9. 
Most of the above are found elsewhere in the state, and would 
naturally be expected in this county, but many of them are inconspicu- 
ous or bear considerable resemblance to other species, and have proba- 
bly hitherto escaped recognition for these reasons. 
SOUTHBRIDGE, Mass. - 
POISONING BY AGARICUS ILLUDENS. 
W. G. FarLow. 
That Agaricus illudens Schweinitz is a poisonous species, and one 
not to be eaten with impunity, has been known to mycologists for a 
