GENERAL INDEX 



503 



Protection of Pilobolus spores, 165-166, 



167 

 Protoplasm, and discharge of sporangia, 

 33 

 „ cleavage of, 14, 15, 16, 17 



„ flow of, in Pilobolus, 50 



„ of asci, stimulation of, 231, 



232, 291 

 „ of Pilobolus sporangiophore, 



70-72, 91, 92 

 „ permeability and excretion 



of drops, 28 

 red, 18, 53, 54 

 Protoplasmic bridle, in ap. ascus, 291, 



293, 302 

 Protoplasmic septum (of Pilobolus), 69- 



71, 91-93, 98, 

 101, 103, 115, 

 119, 123, 125- 

 128 

 „ „ expulsion of, 137, 



139 

 Protospores, of Pilobolus crystallinus, 



16 

 Protozoa, eye-spots. 111 

 Protuberancy of asci, 245, 246, 271-273 

 Psalliota campestris, early developmental 



stages, 363, 364 

 ,, „ geotropic adjust- 



ments, 267 

 „ „ packing of gills, 319 



Psathyrella disseminata, colloidal drops, 



87 

 Pseudoplectania nigrella, audible puffing, 



332 

 Pseudorhiza, account of, 347-396 

 ,, and a sclerotium, 373 



,, and a true root, 349 



and darkness, 372-373 

 ,, and evolution, 240, 396 



„ and gravity, 370 



„ and light, 351 



„ and mycelial cords, 347 



„ and pseudosclerotia, 347 



„ and sclerotia, 347 



„ and secondary fruit-bodies, 



372 

 „ and spores, 394 



„ annual and perennial, 347, 



393, 394 

 „ as an organ, 352, 372, 393- 



394 

 „ attached to a root, 349-351 



„ branched and unbranched, 



347 



Pseudorhiza, branching of, in Collybia 



fusipes, 386-389 

 branching of, in Coprinus 



rnacrorhizus, 371 

 branching of, in SarcoscypJm 



protrada, 239-240, 395- 



396 

 conduction of food- 

 materials, 393 

 crookedness, 354 

 development, 348-349, 353, 



362-368, 386-389 

 erroneous description of, 



373 

 evidence of persistence, 



385-386 

 excavation of, 349, 361 

 function of, 368, 370, 372, 



385, 393-394 

 fusoid part of mechanical 



importance, 351 

 geotropism, 393 

 healing of wounds in, 390- 



392 

 hollow, 353 



increases in thickness up- 

 wards, 354 

 intercalary growth, 366- 



367, 393 

 length of, and soil depth, 



351, 353 

 mechanical support given 



by, 393 

 negatively geotropic, 354 

 obstacles encountered by, 



370 

 of Collybia fusipes, 374-394 

 of C. radicata, 247-252 

 of Coprinus rnacrorhizus, 



355-373 

 of Mycena galericulata, 352- 



355 

 of Sarcoscypha protracta, 



239-240, 394-396 

 origin of name, 347, 349 

 perennial, account of, 374- 



396 

 secondary, 395 

 solid, 351, 367 

 solid or hollow, 370 

 summary, 468-470 

 supposed downward 



growth, 359 

 tapering extremity, func- 

 tion of, 351 



