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Cinnabar is the more stable form, and is a structure akin to that of HgO: each Hg center has two short Hg−S bonds (each 2.36 Å), and four longer Hg···S contacts (with 3.10, 3.10, 3.30 and 3.30 Å separations). In addition, HgS is found in a black, non-cinnabar polymorph (metacinnabar) that has the zincblende structure. [5]
It is a type of plant known as a clubmoss, which is within one of the three main divisions of living vascular plants. It was formerly included in the superspecies Diphasiastrum complanatum. For many years, this species was known as Lycopodium flabelliforme or Lycopodium digitatum. [2] [3]
Dry, one-seeded indehiscent fruit [11] in which the true fruit is not the so-called "berry", but the achenes, which are the so-called "seeds" on the infructescence, e.g. in the genus Fragaria. acicular Slender or needle-shaped. [11] See also Leaf shape. acropetal Moving from roots to leaves, e.g. of molecular signals in plants. acrophyll
Epigeal – living on the surface of the ground. See also terms for seeds. Epigean – occurring on the ground. Epigeic – plants with stolons on the ground. Epigeous – on the ground. Used for leaf fungus that live on the surface of the leaf. Epiphloedal – growing on the bark of trees. Epiphloedic – an organism that grows on the bark of ...
The seeds are 4–5 mm (0.16–0.20 in) in diameter and weigh on average 68 mg. [5] The berries exude a deep red resin, known as dragon's blood. [ 6 ] Like other monocotyledons, such as palms , the dragon's blood tree grows from the tip of the stem, with the long, stiff leaves borne in dense rosettes at the end.
Inflorescence with buds and two open flowers. M. atropurpureum is a tropical herbaceous dicot belonging to the family Fabaceae. It rapidly develops dense, hairy, dark green vines about 5 mm in diameter, [5] until it reaches its mature size around 120 cm. [3] The vines have bright green trifoliolate leaves, which are roughly 2–7 cm long with smooth hairs on the underside. [6]
Leucospermum cordifolium is an upright, evergreen shrub of up to 1½ m (5 ft) high from the Proteaceae.The flower heads are globe-shape with a flattened top, 10–12 cm (3.9–4.7 in) in diameter, and are carried individually or with two or three together mostly at a right angle to its branch.
Groundcover of Vinca major. Groundcover or ground cover is any plant that grows low over an area of ground, which protects the topsoil from erosion and drought.In a terrestrial ecosystem, the ground cover forms the layer of vegetation below the shrub layer known as the herbaceous layer, and provides habitats and concealments for (especially fossorial) terrestrial fauna.