Hi Barbara
I've found plenty today resembling very closely your orange ones. I'll be checking them in due course, so keep an eye on here and I'll come up with a name for mine, and that may be what yours are ..... I've an idea what they are, but not sticking my neck out until I've done the microscopy
....
Underside are either gills or pores ..... these are all gilled ones. Very few fungi are rooting, but the base of the stem can be a very important feature ... whether they are bulbous or have a sac etc. None of yours will have these features though. Also look for things like whether the stem is fibrous or smooth or has fibrils, whether it has a ring. Whether the gills exude milky or coloured drops. What they are growing from, whether from soil or wood, herbaceous debris, dung etc ...
Melanie