Page 237 '_Prototrichia_ to the _Trichiacae_.' changed 'Trichiacae' to '_Trichiaceae_'. Page 237 Plate XVII., Figs.---- changed 'Figs.----' to 'Figs. 1, 1 _a_, 1 _b_'. Page 238 'adjoining the _Perichaenacae_' as in original. This is probably 'Perichaenaceae', as elsewhere in this book, however, it is in a quotation so is unchanged. Page 241 2. 'Ophiotheca chrysoperma _Currey_.' changed 'chrysoperma' to 'chrysosperma'. Page 262 'often, to circumscissle' changed 'circumscissle' to 'circumscissile'. Page 262 'to be uniformily distinctly warted' changed 'uniformily' to 'uniformly'. Page 263 'evanescent peridium suggests _Arycria_' changed '_Arycria_' to '_Arcyria_'. Page 265 'In typical spcimens' changed 'spcimens' to 'specimens'. Page 269 3. Trichia iowenis _Macbr._ Changed 'iowenis' to 'iowensis'. Page 289 '[Greek: klaotos]' changed to '[Greek: klastos]. Page 289 '[Greek: echiuos]' changed to '[Greek: echinos]'. Page 290 '[Greek: lanchos]' changed to '[Greek: lachnos]'. Page 290 LEPIDODERMA, 144 [Greek: lepis], a scale, and [Greek: 'depma'], a covering. Gr. changed 'depma' to 'derma'. Page 290 '[Greek: gala], a, milk. Gr.' changed to '[Greek: gala], milk. Gr.'. Removed 'a,'. Page 290 '[Greek: ophix]' unchanged. Maybe '[Greek: tricha]' would be more appropriate. Page 292 'Diachafa 185' changed to 'Diachaea 185' to match the referenced page. Page 297 'pulchripes _Peck_, 69.' changed to 'pulcherripes _Peck_, 69.' to match the referenced page. Page 304 _Badhamia macrocarpa_ Rost., p. 7. 'changed p. 7.' to 'p. 37.' Page 324 _Comatricha subcaespitosa_ Peck, p. 282. changed 'p. 282' to 'p. 185'. Page 324 _Comatricha gracilis_ Wingate, p. 184. changed 'p. 184.' to 'p. 183'. Page 328 _Badhamia orbiculata_ Rex., p. 66. changed 'p. 66.' to 'p. 37.' Page 338 'showing transional phases' changed 'transional to 'transitional'. Various pages Inconsistent hyphenation: flavo-fusca flavofusca flavo-fuscum flavofuscum net-work network wide-spread widespread