LIST OF ILLUSTRATIONS 



FIG. 



29. Single fructitication of i^o/Me6- a jiMos ((5. \Ji)\iev suvidce facing page 85 



30, „ ,, „ ,, Lower surface „ „ 85 

 Sl^Fomes annosus. Annular rot with a central unrotted 



core . . . . . . . . ,, ,,92 



32. Fomes annosus. Figured rot . . . . ,, ,, 92 



33. Black specks in wood of larch caused by J^o»i6sa)mosj<s . page 94 



34. Transverse section of black speck in wood of larch . ' . „ 96 



35. Longitudinal section near edge of black speck . , . „ 97 



36. Fomes awwsus. Figured arrangement of rot . . facing page 99 



37. ,, ,, Base of lai'ch trunk excavated 



imderneath . . . . „ „ 99 



38. „ „ Fructification showing pores in 



longitudinal section . . . „ „ 101 



39. ,, • „ Under surface of fructification 



shoAving mouths of pores . , ,, „ 101 



40. Upper surface of fructification showing concentric 



furrows and white margin .... 



41. Fomes annosus ...... 



42. Diagram showing necessity for pores to be vertical 



43. Fomes annosus. Conidiophore and conidia 



44. 45. Cultures of Fomes annosus . .• . 



46. Polyporus Schweinitzii. Stipitate fructification 



47. ,, ,, Bracket-shaped fructification 



48. Hymenial layer of Polyporus Schweinitzii 

 49, 50. Sections of larch-tree showing rot caused by 



Polyporus Schtveinitzii 



. facing page 128 

 130 



51. Piece of larch wood rotted by Polyporus Schweinitzii „ „ 



52. Section of Scots pine stem with rot caused by Poly- 



poriis Schweinitzii . . . . . . ,, ,,130 



53. Mycelium of PoZ//2)ori<s<Sc/t(mwi<zii in wood of larch . page 131 



54. Section of larch wood after attack by PoZ^/wrws (ScAti^eijiite/i „ 132 



55. Poria vaporaria . . . . . . . . ,, 136 



56,57. Sections of larch wood rotted by Tramei&s Pmt . facing page 143 

 58, 59. Armillaria mellea. Group of toadstools growing 



from base of deodar . , ,, „ 145 

 60, 61. „ „ Toadstools growing from rhi- 



zomor])hs in soil . . »» »> 146 



