498 



GENERAL INDEX 



Pilobolus, apical view of, 104 



„ as a ooprophilous fungus, 161, 



167 

 „ attachment of sporangium, 



148-161 

 „ ballistics of projectile, 34-36 



carotin in, 18, 98, 180 

 ,, columella development, 61 

 „ criteria in distinguishing 



species, 180 

 ,, crvstalloids in, 17-18 

 crystals on, 88, 89-90 

 ,, culture methods, 47-50 

 ,, cytology of, 14-17 

 „ development and cytology, 



14-17 

 „ development first observed, 10 

 dichroic spores, 72, 180 

 discharge of sporangium, 

 forces concerned, 33 

 „ diurnal crops of, 11 

 „ doubtful species, 201 

 ,, early drawings of, 191 

 ,, effect of two beams of light 



on, 41, 42^5, 120-128 

 ,, evolution of, 167 

 „ excretion of drops, 22-31 

 „ explosion in water, 137 

 eve of, 99, 106 

 first record, 3, 191-192 

 floating sporangia, 154-156 

 ,, genus, 9-10 

 ,, genus defined, 200 

 ,, good species of, 200 

 „ heliotropic experiment on, 



115-120 

 ,, heliotropism, 90-109 

 „ heliotropism and spore dis- 

 persion, 163 

 „ heliotropism and wave-length 



of light, 36-40 

 „ heliotropism in paraffin oil, 

 109 

 history of, 1-46, 191-199 

 ,, illustrations, one hundred and 



eleven, 2-220 

 ,, impact-sound of projectile, 327 

 „ key to species, 201 



list of species, 200-201 

 ,, lurid red disc of, 104 

 ,, meaning of name, 9 



model of, 128-130 

 „ nuclei of, 14-17 

 ,, number of species, 1, 200-201 

 on excrement, 1, 2, 3 



Pilobolus, on mud, 1 , 3 



,, orange-red pigment of, 18 

 ,, osmosis and width of sub- 



sporangial swelling, 183- 



184 

 „ osmotic pressure, 34, 37, 



140-145. 148, 183-184 

 parasites of, 12-13, 18-22 

 „ patterns on sporangia, 184-189 

 ,, periodicity of, 11, 58-62, 130- 



131 

 ,, plasmolysis, 140 

 ,, precision of aiming at source 



of light, 41 

 „ red colouring matter, 281 



reflection of light by, 102-103 

 ,, refraction of light in, 91-96, 



103 

 ,, relations with flowering plants, 



161-168 

 ,, relations with herbivorous 



animals, 161-168 

 ,, relative diameters of sporangia 



and subsporangial swellings, 



56, 57 

 Schuss-bilder, 42, 44 

 services of herbs and herbi- 



vora to, 168 

 ,, solution of two-beam light 



problem, 42-45, 120-128 

 ,, somid of gun, 327 

 ,, species observed at Winnipeg, 



55-56 

 ,, sporangia, large and small, 



189 

 ,, sporangiophore described, 68- 



90 

 ,, sporangiophore specialisation, 



1-2 

 ,, sporangium, abscission of, 73, 



76, 135. 136 

 „ sporangium described, 72-90 

 ,, spore-wall of, and light, 165 

 „ summary, 455-462 

 ,, unique in plant world. 111 

 ,, variations in width of sub- 

 sporangial swelling, 183- 



184 

 „ vitality of spores, 166 

 ,, width-ratio, 183 

 Pilobolus anomalus, 1 1 



„ ,, and Ascophora, 196 



and Pilaira, 195, 198 

 Pilobolus argentinns, taxonomic descrip- 

 tion, 214 



