41. Fruit-body fan- or frond-shaped, composed of innumerable more or less complete caps joined together at their base or to half-way _Grifola_ & _Meripilus_ Fruit-body neither fan-shaped nor frond-shaped and compound 42 42. Fruit-body wholly pale-coloured white, cream, ivory, etc. _Tyromyces_ Fruit-body except pores usually some shade of brown _Polyporus_ 43. Cap thick, corky or woody and pores medium or large _Trametes_ & _Pseudotrametes_ Cap thin but leathery and pores small _Coriolus_ (i) Pored and toothed fungi (a) Colonisers of tree trunks, stumps and branches ~Polyporus squamosus~ Fries Scaly polypore _Cap_: 100-300 mm. _Stem_: width 25-50 mm; length 25-75 mm. _Description_: Cap: fan-shaped or semicircular, spreading horizontally with age, ochre-yellow or straw-coloured with dark brown, flattened scales in concentric zones which are much more dense at the centre. Stem: short, stout, white at apex and netted with pale creamy buff about middle, but dark brown or black towards the base and attached to the side of the cap. Tubes: whitish to yellowish and decurrent with large, angular, irregularly fringed, whitish or cream-coloured pores. Flesh: with strong, not very pleasant smell, cream-coloured or white. Spore-print: white. Spores: long, oblong or elongate ellipsoid, hyaline under the microscope (10-15 × 4-5 µm) and not blueing in solutions containing iodine. _Habitat_ & _Distribution_: An easily recognisable fungus growing on stumps and old living trees, especially of sycamore and elm where it often forms tiers of caps from late spring until autumn; however, they decompose rapidly and almost completely disappear by the next year when new fruit-bodies may appear in the same place, a phenomenon which may take place for several consecutive seasons.