DESCRIPTION OF PLATES. xiii 



PTO, PAGE 



SO. Beaded hair of sow-thistle 41 



81. Glandular hair from leaf of common tobacco 41 



82. Hair from leaf of garden chrysanthemum 41 



83. Rosette-shaped glandular hair from flower of verbena 41 



84. Stellate hairs from the hollyhock (A Ithasa rosea).. 41 



85. a. Stellate hair from leaf of lavender 41 



85, 6. Hair from leaf of garden verbena, with warty 



surface 45 



86. Hair from leaf of white poplar (Populus alba) .... 41 



87. Ease of a hair on a mass of cellular tissue 41 



88, a. A sting from common nettle 42 



88, 6. Portion of a leaf of Valisneria 42 



PLATE IV. to face page 48. 



89. Palmclla cruenta gory dew 48 



90. Yeast plant 48 



91. Portions of vinegar plant 48 



92. So-called cholera fungus obtained from the air. ... 48 



93. Red rust of wheat 49 



94. Puccinia yraminis mildew 49 



95. Pent till him glaucum common mould 49 



96. Boirytis from mouldy grape 49 



, 97. Fungus from mouldy bread (Mucor Muccdo] .... 49 



98. Fungus from human ear 49 



99. Fungus from leaf of bramble (Phragmidium bul- 



I'osum) 49 



100. Vine blight (Oldium Tuckeri) 50 



101. Potato blight (Bolrylis infcslans) 50 



102. a. Pea. blight (Erysiplie Pisi) 50 



6. Asci and sporidia of pea blight CO 



103. Fungus from a decayed Spanish nut 50 



