Thrixspermum, commonly known as hairseeds or 白点兰属 , is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytes, lithophytes or terrestrial plants with flat, leathery leaves and short-lived flowers with the sepals and petals more or less similar to each other. The labellum is rigidly fixed to the column and has three lobes. The side lobes are erect and the middle lobe is thick and fleshy. There are about 190 species distributed from tropical and subtropical Asia to the Western Pacific. Most species grow in lowland or tropical rainforests up to an altitude of 1,200 m.
Koncordie Amalie Dietrich was a German naturalist who was best known for her work in Australia from 1863 to 1872, collecting specimens for the Museum Godeffroy in Hamburg.
Ludwig Karl Georg Pfeiffer, also known as Louis Pfeiffer, was a German physician, botanist and conchologist.
Chaetoceros is probably the largest genus of marine planktonic diatoms with approximately 400 species described, although many of these descriptions are no longer valid. It is often very difficult to distinguish between different Chaetoceros species. Several attempts have been made to restructure this large genus into subgenera and this work is still in progress. However, most of the effort to describe species has been focused in boreal areas, and the genus is cosmopolitan, so there are probably many tropical species still undescribed. Some species are known from the fossil record, from the Quaternary of Sweden. It is the type genus of its family.
Bostrychia is a genus of filamentous red alga. Species may grow as epiphytes on other plants in salt marsh and mangrove habitats.
Odontella is a genus of marine diatoms. It contains the following species:
Amphora is a major genus of marine and freshwater diatoms. With over 1000 species, it is one of the largest genera of diatoms. These diatoms are recognized by their strongly dorsiventral frustules, which means that their ridges lie close to the ventral margin of the valve, and their girdle is much wider on the dorsal side.
Ditylum brightwellii is a species of cosmopolitan marine centric diatoms. It is a unicellular photosynthetic autotroph that has the ability to divide rapidly and contribute to spring phytoplankton blooms.
Eunotiaceae is a family of diatoms in the order Eunotiales that includes the following genera:
Cymatosira is a genus of diatoms in the family Cymatosiraceae. It is the type genus of its family.
Stauroneis is a genus of diatoms (Bacillariophyta) with species that occur in fresh and marine water.
Thalassiothrix is a genus of Chromista belonging to the family Thalassionemataceae.
Thalassionema is a genus of Chromista belonging to the family Thalassionemataceae.
Diploneis is a genus of diatoms belonging to the family Diploneidaceae.
Gomphonema is a genus of diatoms belonging to the family Gomphonemataceae.
Lithodesmium is a genus of diatoms belonging to the family Lithodesmiaceae.
Melosira is a genus of diatoms belonging to the family Melosiraceae.
Armandia is a genus of polychaetes belonging to the family Opheliidae.
