I came across these today. I'm not sure what they are. The Chinese is 松柏菇 (sōng bǎi gū), which literally translates as 'pine cypress mushroom'. Mr. Google and his Chinese counterparts have proved to be no help in identifying them.
I haven't eaten any yet, but they have a strong mushroom scent. After soaking the dried mushrooms the soaking water has a distinct green tinge.
Anyway, here they are dried
and here are a few rehydrated