2 growing near each other.
Under pine, near Amanita muscaria and Suillus.
[admin – Sat Aug 14 02:01:38 +0000 2010]: Changed location name from ‘John McLaren Park, San Francisco, CA, USA’ to ‘John McLaren Park, San Francisco, California, USA’
Under monterey pine. Not T. flavovirens sensu stricto, but some other species with much lighter pores.
Under Monterey cypress and Monterey pine
Large, imbricate-pileate polypores growing on cottonwoods (Populus )
Flesh thick, tough-punky, cap surface slightly fibrillose to smooth.
Flesh 2.5 cm deep, tube layer 5 mm deep.
Pore mouths small, subtly angular (not perfectly round), 3-4/mm.
Fresh specimens juicy, with strong almond extract/marzipan/maraschino odor when cut.
Pores turning yellow-orange when dried.
Microscopy:
Hyphae mostly of one type, simple, unseptate, with thick walls. No clamps observed. No cystidia observed. Spores smooth, ellispoid to long-ellipsoid, 7 x 3 microns or longer. Inamyloid.
At first I thought they might be Osteina due to general appearance, but not growing on conifer, not drying bone-hard, and with different micro characters.
Comments from polypore expert Otto Miettinen:
"the fruitbody
structure, spore shape and hyphal structure point towards Polyporus (in the wide, traditional sense). The hyphae look like skeleto-binding
hyphae typical of Polyporus and the core polyporoid clade / polyporaceae
in the modern sense."