Atrichum species ?

Atrichum species ?;

Moss for ID - RK - 1: Request ID .Pic taken early March 2011.
Los Altos,California.
... this is a moss. Please provide the size of the capsule and leaf size with photograph for identification of the species.
I regret this is the only pic have.This is the first time i have taken a pic of moss.
This can be Atrichum or Trematodon