The mid leaf areolation and the moderately complanate branches here are certainly suggestive of Leptodictyum but in some leaves the alar cells are moderately inflated, which would preclude this species. I don't know what else it could be, however! I doubt very much if it is a Drepanocladus. I guess this is just one more of those damnably variable Amblystegiaceae. I cannot name this with any degree of confidence.