Pottiaceae

This moss is commoner further east in California but is known from near Highway 20 in Lake County, California. This specimen was obtained there by B. Mishler and photographed by me soon after collection.

Compilation of multiple photos taken at different points in time; taken both in field and in lab. Specimen verified by Dan Norris.

Compilation of multiple photos taken at different points in time; taken both in field and in lab.

Compilation of multiple photos taken at different points in time; taken both in field and in lab. Specimen verified by David Wagner.

Note the rolled in leaf edges, which are a distinctive feature of this small moss.

This moss formed mats on the trunk of an oak tree near Mariah Meadows Resort (in hills Near Cobb). This photograph was taken at home later from a collected piece to show a young capsule with its calyptra and a mature capsule with its peristome

Compilation of multiple photos taken at different points in time; taken both in field and in lab. Specimens verified by Dan Norris.

Compilation of multiple photos taken at different points in time; taken both in field and in lab.

This was collected by Brent Mishler from Near Highway 20 in Lake County and photographed by me nearby and soon after its collection.

This moss is rare in California and was growing in patches on wet rock, mostly in sheltered recesses but in an open section of the Feather River Canyon, interspersed with patches of with Mielichhoferia elongata.

The moss with very long hair points to the leaves (including the plant with the green capsule) is Crossidium squamiferum. Also present are Bryum argenteum (eg near the top, left of center, and the silvery plants to the right of the Crossidium patch); Aloina sp. (two plants with narrow, dark green leaves with incurved margins towards the upper right) and many plants with triangular yellow green leaves that I'm guessing are a Didymodon species (possibly also a second species with larger leaves).

The photograph was taken at home after the addition of water to a sample collected with a piece of the substrate. This enabled the plants to open to their natural moist state.

Collected by B. Mishler from near Highway 20 in Lake County and photographed by me nearby soon after its collection.

On a vertical shaded N-facing semi-overhanging rock face above a stream in otherwise open country; near Adiantum capillus-veneris.

This very small 'ephemeral' moss is seen here with a Bryum species. The Acaulon plants are the four bulb-like brown objects near the center of the image, and two more are visible towards and at the bottom right. The plants are probably young since the capsules are still covered by the leaves. The greener moss plants with longer hair points on the leaves are the Bryum species.