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Snake lily (Dracunculus vulgaris) of family Araceae in Crete, Greece.Ottelia alismoides from family Hydrocharitaceae in Hyderabad, India.. The Alismatales (alismatids) are an order of flowering plants including about 4,500 species.
The AASHTO Soil Classification System was developed by the American Association of State Highway and Transportation Officials, and is used as a guide for the classification of soils and soil-aggregate mixtures for highway construction purposes.
Tetraselmis is a genus of phytoplankton. Tetraselmis is a green algal genus within the order Chlorodendrales, and they are characterized by their intensely-colored green chloroplast, their flagellated cell bodies, the presence of a pyrenoid within the chloroplast, and a scale-produced thecal-wall.
Torpedograss in a ditch. Panicum repens is a species of grass known by many common names, including torpedo grass, creeping panic, panic rampant, couch panicum, wainaku grass, quack grass, dog-tooth grass, and bullet grass.
Lumbricus rubellus, or the "red earthworm", ranges from 25 millimetres (0.98 in) to 105 millimetres (4.1 in) in length and has smooth, reddish, semi-transparent, flexible skin segmented into circular sections.
Global variation in soil pH. Red = acidic soil. Yellow = neutral soil. Blue = alkaline soil. Black = no data.. Soil pH is a measure of the acidity or basicity (alkalinity) of a soil.
The habitat of the genus is limited to East and Southeast Asia, mainly the Yangtze River Basin and Myanmar. [3] The species Pseudodon inoscularis is also found in Thailand, Cambodia, and southern Vietnam, while the species Pseudodon resupinatus is endemic to northern Vietnam, [4] and the species Pseudodon vondembuschianus is found in Indonesia and Indochina.
Robert J. Dunham published his classification system for limestone in 1962. [2] The original Dunham classification system was developed in order to provide convenient depositional-texture based class names that focus attention on the textural properties that are most significant for interpreting the depositional environment of the rocks.