Light was terrible so I didn't get good pics, but I'm SUPER curious about the ID of this liverwort, so I'm posting them anyway. Thalli up to 6-7 cm long, growing in a seep by the side of a logging road. Upper thalli were more round, big straps only seemed to be growing in the drip zone. No apparent midrib or reproductive structures, though it was soaking wet so it was hard to see the small stuff. My present guess is Aneura pinguis, but that's just short of being a shot in the dark.
A small thalloid liverwort with lobed leaves. Leaves had 3-4 lobes. Growing on a slightly rotten log next to a trail in a temperate rainforest. On the same log end was some ptidilum or pacific fuzzwort.
I think it is R. palmata. It has lots of gemmae, the dorsal epidermal cells do not seem to be as large as R. latifrons and I like the name palmata better. heh.
Cross section is from the thallus. It is hard to tell where the thalus and the lobes are with all the ruffles this has. The thallus was pretty much stuck to the wood with the lobes sticking up.
There were some oil bodies, it's not bipinatly branched it's more palmate.
This was on a rotting log and was mixed in with a tiny leafyliver wort.
One the cells I measued was 75um at the longest and shaped like pentagon.
The first picture is a panorama of 11 photos at 40 times magnification.
I actually found this simple thalloid liverwort a few weeks ago, but I had to go back to do a photo shoot with it! The streambank where it was growing was a mixture of gravel sized rocks. It was both submerged in the fast running water and up on the bank. the sizes of the thalli varied greatly. Some were probably 1cm in length while others like this one pictured were more than 6cm long! The midrib really thins out before the margins, and if you look closely the dark green color becomes somewhat translucent toward the edges.
I think the thick thallus of 15 or more cells separates this from pellia. It also seems to have clear rhizimes where pellia has dark rhizimes. But Aneura is supposed to be greasy looking and this is not greasy looking.
It would be good to go back later when this is reproducing. I could not see oil bodies even though this was a fresh sample.
Aneuraceae (sometimes Riccardiaceae) is a family of thallose liverworts in the order Metzgeriales. Most species are very small with narrow, branching thalli.
