Nostoc, also known as star jelly, troll’s butter, spit of moon, fallen star, witch's butter, and witch’s jelly, is the most common genus of cyanobacteria found in various environments that may form colonies composed of filaments of moniliform cells in a gelatinous sheath of polysaccharides. Nostoc is a genus of photosynthetic, Gram-negative cyanobacteria that can be found in both terrestrial and aquatic environments. It may also grow symbiotically within the tissues of plants, providing nitrogen to its host through the action of terminally differentiated cells known as heterocysts. Nostoc is a genus that includes many species that are diverse in morphology, habitat distribution, and ecological function. Nostoc can be found in soil, on moist rocks, at the bottom of lakes and springs, and rarely in marine habitats. It may also be found in terrestrial temperate, desert, tropical, or polar environments.
Fragilariophyceae is a group of pennate diatoms lacking a raphe.
Hemerophanes is a genus of moths in the subfamily Lymantriinae. The genus was erected by Cyril Leslie Collenette in 1953.
Himanthalia elongata is a brown alga in the order Fucales, also known by the common names thongweed, sea thong and sea spaghetti. It is found in the north east Atlantic Ocean and the North Sea.
Odontella is a genus of marine diatoms. It contains the following species:
Sycacantha is a genus of moths belonging to the subfamily Olethreutinae of the family Tortricidae.
Bangia is an extant genus of division Rhodophyta that grows in marine or freshwater habitats. Bangia has small thalli with rapid growth and high reproductive output, and exhibits behavior characteristic of r-selected species. The plants are attached by down-growing rhizoids, usually in dense purple-black to rust-colored clumps. The chloroplasts of Bangia, like others in the division Rhodophyta, contain chlorophyll a and sometimes chlorophyll d, as well as accessory pigments such as phycobilin pigments and xanthophylls. Depending on the relative proportions of these pigments and the light conditions, the overall color of the plant can range from green to red to purple to grey; however, the red pigment, phycoerythrin, is usually dominant.
Events from the year 1834 in Denmark.
Hans Christian Lyngbye was a Danish priest and botanist, specialising in algae.
Lyngbya majuscula is a species of filamentous cyanobacteria in the genus Lyngbya. It is named after the Dane Hans Christian Lyngbye.
Pyrausta diatoma is a moth in the family Crambidae. It was described by George Hampson in 1913. It is found in Kenya and South Africa.
Fragilaria is a genus of freshwater and saltwater diatoms. It is usually a colonial diatom, forming filaments of cells mechanically joined by protrusions on the face and in the center of their valves. The individual diatoms appear swollen in their centers where they are joined to the colonial ribbon. the genus grows as both plankton and benthic species, free living in colonies or epiphytic. Some species are bloom forming diatoms in eutrophic lakes. The type species is Fragilaria pectinalis Lyngbye from designating a lectotype from Conferva pectinalis O.F.Müller. The taxonomy of the genus is still uncertain.
Sinanas is a genus of prehistoric duck that lived during the middle Miocene. The single known species is Sinanas diatomas. Fossils of the species have been recovered from the Shandong Province of China. Taxonomists are uncertain as to its affinities to modern waterfowl.
Bangiaceae is a family of red algae in the order Bangiales. It contains laver, used to make laverbread, and various species in the genus of Pyropia are used to make nori.
Hans Peter Johan Lyngbye was a Danish businessman.
Gloeothece is a genus of cyanobacteria belonging to the family Aphanothecaceae.
Halidrys is a genus of brown algae belonging to the family Sargassaceae.
Didymosphenia is a genus of diatoms belonging to the family Cymbellaceae.
Callithamnion is a genus of algae belonging to the family Callithamniaceae.
Sphacelaria is a genus of brown macroalgae in the family Sphacelariaceae.
