GENERAL INDEX 



Polyporus squamosus, violent projec- 

 tion of spores, 

 135-142, 146- 

 147 

 „ ,, visits of Collem- 



bola, 20 

 „ „ width of tubes, 



38 

 Polyporus varius, abnormal fruit-bodies, 



64 

 Polystictus, continuity of spore-fall, 

 120 

 ,, demonstration of spore- 



fall, 101 

 „ dispersion of spores, 220 



,, effect of inverting fruit- 



body, 21 

 „ fall of spores to ground, 217 



„ spore-fall period, 102 



,, spore stream, 96 



,, violent projection of spores, 



136 

 „ a xeropbytic genus, 109 



Polystictus hirsutus, desiccation, 111 



„ „ effect of tilting fruit- 



body, 38 

 „ „ growth after desic- 



cation, 106 

 „ „ spore-discharge at 



0°C, 124-125 

 „ „ spore-fall period, 103 



Polystictus pergamenus, desiccation, 111 

 Polystictus versicolor , desiccation of fruit- 

 body, 109, 111 

 ,, „ desiccation of my- 



celium, 111, 112 

 ,, ,, discbarge of spores 



in a beam of 

 light, 97 

 „ ., effect of drying on 



spore - discharge, 

 123 

 „ ,, spore - discharge at 



0° C, 124-125 

 ,, „ spore -fall period, 



103, 104 

 „ „ violent projection of 



spores, 136 

 Porta vaporaria, abnormal fruit-bodies, 



21 

 Porphyrospone, descent of, 12 

 Potassium nitrate, effect on asci, 238- 



239 

 Poynting, J. H., on evaporation pres- 

 sure, 173 

 ,, ,, plate micrometer of, 



158-160 

 Projection of spores, distance of, 142, 

 147 



j Projection of spores, evidence of, 133- 

 147 

 Psalliota, effect of inverting fruit- 

 body, 21 

 „ gill-chamber, 45 



„ desiccation, 106 



,, stipe, 42 



,, violent projection of spores, 



137 

 Psalliota arvensis, spore-cloud, 218 



„ „ fall of spores in a 



beam of light, 94 

 Psalliota campestris, adjustments of fruit- 

 bodies, 50-56 

 ,, ,, distance of spore- 



projection, 142 

 ,, ,, effect of humidity on 



spore - discharge, 

 122 

 ,, ,, effect of light on 



spores, 25 

 ,, ,, fall of spores to 



ground, 216 

 ,, ,, humidity and rate 



of fall of spores, 

 180-183 

 ,, ,, non - response to 



ra o r p h o g e n i c 

 stimulus of 

 gravity, 50 

 ,, ,, number of spores, 



82 

 ,, ,, rate of fall of spores, 



175 

 ,, ,, size of spores, 162, 



163, 248 

 ,, ,, specific gravity of 



spores, 154-157 

 „ ,, specific increase in 



hymenial surface, 

 30, 31, 33 

 „ „ sporabola of, 185, 



189 

 ,, ,, survival of spores, 



86 

 ,, „ system of gills, 36 



„ ,, two-spored basidia, 



15 

 ,, „ vitality of spawn, 



112 

 (For further references ride Mushroom) 

 Psathyrella, geotropism, 53 

 Psilocybe, violent projection of spores, 



137 

 Psilocybe foenisecii, effect of oxygen, 



128-129 

 Puff-balls, heat produced by, 221- 

 222 

 „ „ number of spores, 85-86 



