Leptopterigynandrum C. Müller Hal., 1897.

Leptopterigynandrum is a very discontinuously distributed plant with a range extending from Alaska to Argentina in montane and alpine regions. Tentative identification can be suggested by the small plants with somewhat julaceous stems whose leaves have a strongly forked costa. Compound microscope views are necessary to confirm the identification as one looks for the minutely verruculose cuticle on the branch and stem leaves.
see key to Lescuraea

Species included:
Leptopterigynandrum austro-alpinum C. Müller Hal.