Chapter XXII

. Changed XXII to XXIV.

Page 33 Changed kornos to kopros in accordance with printed correction list.

Page 52 The spores are white in mass, or sometimes with a faint yellowish or lilac tinge. For analytical keys to the genera see Chapter XXII . Changed XXII to XXIV.

Page 54 Figures 52--54 are from plants (No. 2065 C. U. herbarium) collected in an open woods near Ithaca. For the poisonous property of the plant see

## Chapter XX .

Changed Chapter XX to