Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophytasensu stricto. However, Bryophyta may also refer to the parent group, bryophytes, which comprise liverworts, mosses and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically 0.2–10 cm (0.1–3.9 in) tall, though some species are much larger. Dawsonia, the tallest moss in the world, can grow to 50 cm (20 in) in height. There are approximately 12,000 species.
The Marchantiophyta are a division of non-vascular land plants commonly referred to as hepatics or liverworts. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information.
Non-vascular plants are plants without a vascular system consisting of xylem and phloem. Instead, they may possess simpler tissues that have specialized functions for the internal transport of water.
Lower Bostraze And Leswidden SSSI is a biological Site of Special Scientific Interest, located on the Penwith Peninsula, Cornwall, England, a little to the east of St Just, approximately 8 km west of Penzance.
Marsupella profunda, the western rustwort, is a liverwort native to Europe and known only from Portugal and Great Britain (Cornwall) and has been sighted in the Canary Islands. It is a small reddish liverwort and can be confused with Marsupella sprucei which has a more widespread distribution.
Radula visianica is a species of liverwort in the Radulaceae family. It is endemic to Italy. It was thought to be extinct since 1938 but was rediscovered in 2014.
Radula is a genus of liverwort, and is the only genus in family Radulaceae.
Perrottetinene is a naturally occurring cannabinoid compound found in liverworts from the genus Radula native to Japan, New Zealand and Costa Rica, namely Radula perrottetii, Radula marginata and Radula laxiramea, along with a number of similar compounds. Its chemical structure closely resembles that of THC, the main active component of marijuana. The absolute configuration of perrottetinene was established in 2008 by an enantioselective total synthesis. In 2018, a study showed that perrottetinene is moderately psychoactive through activation of the cannabinoid receptor 1. The same study also reported reduced prostaglandin D2 and E2 brain concentrations in mice after perrottetinene administration.
Dendrobium jonesii, commonly known as the oak orchid is a species of epiphytic or lithophytic orchid endemic to far north Queensland. It has spindle-shaped pseudobulbs, up to seven thin, dark green leaves and up to thirty five crowded, star-like, fragrant cream-coloured or white flowers with purple markings on the labellum.
Malacothamnus jonesii is a species of flowering plant in the mallow family known by the common names Jones' bushmallow and slender bushmallow.
Radula marginata, or wairuakohu', is a species of plant in genus Radula, a genus of liverworts. It is endemic to New Zealand. It has been found to contain cannabinoids.
A terrestrial ecosystem is a type of ecosystem found only on land forms. Six primary terrestrial ecosystems exist: tundra, taiga, temperate deciduous forest, tropical rain forest, grassland, deserts.
Dihydrostilbenoids (bibenzyls) are natural phenols formed from the dihydrostilbene (bibenzyl) backbone.
Radula demissa is a species of liverwort.
Sarracenia jonesii is a species of pitcher plant discovered by Edgar T. Wherry which is endemic to the bogs in the mountains on the border between North Carolina and South Carolina. It is currently only found in ten locations: 4 in North Carolina and 6 in South Carolina. S. jonesii is listed as endangered by the US federal government.
Thelymitra jonesii, commonly called the skyblue sun orchid, is a species of orchid that is endemic to Tasmania. It has a single erect, fleshy, linear, dark green leaf and up to six relatively small light blue to azure blue flowers with darker veins. It is a rare orchid known from only four scattered locations in moist coastal heath.
Radula perrottetii is a species of plant in genus Radula, a genus of liverworts. It is endemic in Japan. It contains the small molecule perrottetinene a cannabinoid and other metabolites of scientific interest including Marchantin A.
Mitchell's Grove Nature Preserve is a 184 acres (74 ha) nature Preserve located in La Salle County, Illinois, situated between Tomahawk Creek and the Little Vermillion River north of their confluence. It is composed of diverse terrain with over 300 plant species present. While much of the upland area is oak savanna and prairie, the bottomlands consist of several different types of mesic forest with diverse plant communities. The site was gifted to the state of Illinois by William and Irene Mitchell in 1997.
