Mosses are pretty cool. Their life cycle consists of an alteration of generations. The gametophyte (haploid) is the typical green stuff you think of when you hear the word moss. Now, the little stalks coming out of it in this photo are the sporophytes (diploid). Spores will pop out of the tiny capsule on top of the stalk (the seta). If the spores land in a place with enough moisture, then they will germinate and grow into the gametophyte.
This little moss is uncommon and easily overlooked, growing as it does in farm fields in fall. It's Tortula (formerly Pottia) truncata. It closely resembles goblet moss (Physcomitrium pyriforme) but is in a different family and produces sporophytes in the fall, not the spring. This was seen today at Waterman Agriculture and Natural Resources Laboratory Complex in Columbus, OH. This scene is abut 8 mm across. #ohioplants#ohiobotany#bryophytes#arablemosses#bobklips
This is something you don't see every day: moss twins! Most moss mothers (Dicranum polysetum to the contrary notwithstanding) produce only one baby per archegonial branch, as the first successfully initiated sporophyte in a cluster suppresses the development of others.This moss that I grabbed from from a cornfield is Weissia muhlenbergiana. The scene here is small, approx. 7 mm across. #ohioplants#ohiobotany#bryophytes#arablemosses#bobklips
Did you know liverworts are one of the oldest plant species on earth?? It is speculated the arose from green alga sometime around 400,000,000 years ago! I found this patch of liverwort the other week and have been doing a little digging online to try and figure out who exactly they be but no luck so far. I absolutely love the texture and coloration, so I’ll just have to enjoy it without knowing everything about it.
A beautiful bipinnate moss of the forest floor. If you look very closely.. its tiny leaves are covered in papillae, one centered on each cell (picture 3), and its stem is covered in cholorphyllous branching filaments called paraphyllia which in this case are also papillose (picture 2 and 4). This particular species is delimited by having paraphyllia with papillae on the ends of cells (instead of centered). Thuidiaceae
Fantastic fallow farm field fall fun. There's a corn field on the OSU campus where some fast-growing "arable bryophytes" are merrily putting the lie to the notion that late autumn is a dormant season for plants. Problem is I dunno what these be! Too big for Ephemerum; the closest I can come to it is Weissia muhlenbergiana (formerly Astomum muhlenbergianum) but I've seen that moss and it looked more stemmed. These are bulbiform little things. The scene is 12 mm across. #ohioplants#ohiobotany#bryophytes#arablemosses#bobklips
Bryophytes as called mosses are a phylum of non-vascular plants. They produce spore for reproduction. They have two stage of life is called metagenesis. The common stage we see as moss is gametophyte and another stage is sporophyte.
Plagiomnium ciliare (Mniaceae). One of my favorite mosses to look at under the microscope. Plagiomnium is a genus that is pretty commonly found across the United States in wet soils and on rotted woods. It is a pretty difficult genus to identify down to species, and in Florida there are several that look very similar. Two of those, P. cuspidatum and P. floridanum, only have distal marginal teeth, whereas P. affine (generally) has teeth all along the margin. The teeth of P. ciliare are also described as “rounded”. If you look at the next photo, rounded isn’t the first thing I would say without any context, but the teeth of P. cuspidatum definitely are sharp in comparison. I love the little cells in the lamella of these! #moss#mniaceae#plants#botany#mosses#bryology#bryophytes#microscope#flora#florida#microscopic#nature#plantstagram#plantsofinstagram
Since I just finished writing a paper on it I figured why not share this again. Goblins gold moss (Schistostege pennata) is a bit of a rarity in most of it's range and was thought to be gone from Ohio until this past summer. It was last seen in 1893 by botanist Otto Hacker the same spot I rediscoverd this moss! This moss grows in deep crevices usually liking it a bit damp. The moss gives a luminous green glow from the "protonema". Protonema is the early development of a moss described as a chain of cells which can later develop into gametaphytes. The moss gets this glow from cells that trap the little light that hits the moss. Some of the light is then used by the plant and some is reflected giving it this glow. This moss can be confused easily by another moss with a similar growth pattern known as (Fissidens Spp.). Fissidens will have a midrib on the leaflets which the Schistostega lacks. This was a very exciting discovery for Ohio and many botanists we thrilled about it! We have surveyed some of the associated species and the habitat it grows in. Who knows Ohio has a handful of similar spots for it. There is a record for Portage County too which is only a literature record. I have a feeling it could still be hiding somewhere out there. Maybe Nelsons Ledges! I will do some exploring out there next summer!
Arghh! Shiny flat carpet mosses in dark places. There are several genera, all looking quite alike. They can be confusing. It's a gift from Natural Selection when there's something definitive. This one is Pseudotaxiphyllum distichaceum. Through the microscope (not shown) there are distinctive tiny linear asexual brood bodies clustered in the upper leaf axils. Yippee! This was seen Sunday in a damp sandstone crevice in Geauga County. #mosses#ohioplants#ohiobotany#ohiomosses#ohiobryophytes#bryophytes#bobklips
Some male mosses have their gametangia clustered at the tips of branches with a subtending whorl of leaves that form a splash cup that helps disperse sperm when raindrops drop. This is Mnium hornum, an uncommon (in Ohio) species with an affinity for acidic sandstone rock substrates in somewhat shady woodland habitats. This was seen in Geauga County on Sunday. #bryophytes#mosses#ohioplants#ohiobotany#plantsofohio#ohiomosses#bobklips
Ceratodon purpureus (Ditrichaceae). One of the most impressive mosses by its sheer distribution and survivability. It most commonly colonizes disturbed areas such as mineral soils after fire, but it is just as at home on roofs, rocks, sidewalks, highway shoulders, or logs in well-lit areas. Comfortable too is this moss in living on heavy metals in the margins of mines, for instance Nickel and Tin mines. It is known from the northernmost regions of Canada and Alaska down to within Antarctica, and is thought to be found in every country in between. It’s very near to my heart as it is the first moss I ever did any work on, as an undergrad at the University of Florida. #plants#botany#moss#bryology#bryophytes#ditrichaceae#plantstagram#plantsofinstagram#nature#flora#wisconsin
I haven't tried it yet, but I wouldn't be surprised if iNaturalist were to suggest the huge monocarpic perennial gentian Frasera caroliniensis for this plant. But the scene here is about an inch across, and it's a moss, Atrichum crispum. Easily mistaken for a Mnium, it's an unusual Atrichum with very low and indistinct lamellae. This was seen yesterday on soil at the shady base of a sandstone cliff in northeastern Ohio. #mosses#ohioplants#bryophytes#ohiobotany#bobklips
This is "fragile broom moss," Dicranum flagellare. It reproduces asexually by means of stiff pencil-like upright branches that have tiny appressed leaves. The branches break off, and develop into new plants. This was seen yesterday on an open sandstone ledge with thin soil in northeastern Ohio. #mosses#ohioplants#bryophytes#ohiobotany#bobklips