Amorphophallus is a large genus of some 200 tropical and subtropical tuberous herbaceous plants from the Arum family (Araceae), native to Asia, Africa, Australia and various oceanic islands. A few species are edible as "famine foods" after careful preparation to remove irritating chemicals. The genus includes the Titan arum of Indonesia, which has the largest inflorescence of any plant in the genus, and is also known as the 'corpse flower' for the pungent odour it produces during its flowering period, which can take up through seven years of growth before it occurs.
Blasius Merrem was a German naturalist, zoologist, ornithologist, mathematician, and herpetologist. In 1804, he became the professor of political economy and botany at the University of Marburg.
Adenia is a genus of flowering plants in the passionflower family, Passifloraceae. It is distributed in the Old World tropics and subtropics. The centers of diversity are in Madagascar, eastern and western tropical Africa, and Southeast Asia. The genus name Adenia comes from "aden", reported as the Arabic name for the plant by Peter Forsskål, the author of the genus.
Zantedeschia is a genus of eight species of herbaceous, perennial, flowering plants in the family Araceae, native to southern Africa from South Africa north to Malawi. The genus has been introduced on all continents except Antarctica. Common names include arum lily for Z. aethiopica and calla and calla lily for Z. elliottiana and Z. rehmannii, although members of the genus are neither true lilies of Liliaceae, true Arums, nor true Callas. The colourful flowers and leaves of both species and cultivars are greatly valued and commonly grown as ornamental plants.
Anubias is a genus of aquatic and semi-aquatic flowering plants in the family Araceae, native to tropical central and western Africa. They primarily grow in rivers and streams, but can also be found in marshes. They are characterized by broad, thick, dark leaves that come in many different forms. The genus was revised in 1979 and since then its nomenclature has been stable. Species can be determined by using mostly characteristics of the inflorescence. Because of the often shady places where the plants grow, the genus was named after the Egyptian god Anubis, the god of the afterlife. The genus was first described in 1857 by Heinrich Wilhelm Schott, with A. afzelii as its type species.
Zamioculcas is genus of flowering plants in the family Araceae, containing the single species Zamioculcas zamiifolia. It is a tropical perennial plant, native to eastern Africa, from southern Kenya to northeastern South Africa. Common names include Zanzibar gem, ZZ plant, Zuzu plant, aroid palm, eternity plant and emerald palm. It is grown as an ornamental plant, mainly for its attractive glossy foliage and easy care.
Nephthytis is a genus of eight species of flowering plants in the family Araceae, native to tropical western Africa, with one species in Borneo.
In mathematics, the Torelli theorem, named after Ruggiero Torelli, is a classical result of algebraic geometry over the complex number field, stating that a non-singular projective algebraic curve (compact Riemann surface) C is determined by its Jacobian variety J(C), when the latter is given in the form of a principally polarized abelian variety. In other words, the complex torus J(C), with certain 'markings', is enough to recover C. The same statement holds over any algebraically closed field. From more precise information on the constructed isomorphism of the curves it follows that if the canonically principally polarized Jacobian varieties of curves of genus are k-isomorphic for k any perfect field, so are the curves.
Yuri Borisovich Rumer was a Soviet theoretical physicist, who mostly worked in the fields of quantum mechanics and quantum optics. Known in the West as Georg Rumer, he was a close friend of Lev Landau, and was arrested with him during the Great Purge in 1938.
Walter Tollmien was a German fluid dynamicist.
In mathematics, Tsen's theorem states that a function field K of an algebraic curve over an algebraically closed field is quasi-algebraically closed (i.e., C1). This implies that the Brauer group of any such field vanishes, and more generally that all the Galois cohomology groups H i(K, K*) vanish for i ≥ 1. This result is used to calculate the étale cohomology groups of an algebraic curve.
Rhaphidophora is a genus in the family Araceae, occurring from tropical Africa eastwards through Malesia and Australasia to the Western Pacific. The genus consists of approximately 100 species.
Cryptocoryne aponogetifolia is a species belonging to the Araceae genus Cryptocoryne.
In mathematics and theoretical physics, Noether's second theorem relates symmetries of an action functional with a system of differential equations. The action S of a physical system is an integral of a so-called Lagrangian function L, from which the system's behavior can be determined by the principle of least action.
Stylochaeton is a genus of flowering plants in the family Araceae that is endemic to Africa. Stylochaeton are rhizomatous with hastate leaves. Flowering in this genus is said to be quite uncommon. Stylochaeton is the sole genus in the tribe Stylochaetoneae.
Pseudoweinmannia lachnocarpa is a rainforest tree of eastern Australia. Common names include rose marara, mararie, scrub rosewood and red carabeen. The species name lachnocarpa is from the Greek, referring to the "woolly fruit". The genus name refers to the similarity of another genus, Weinmannia, after the German eighteenth century pharmacist J.W. Weinmann.
Plicosepalus sagittifolius is a woody, photosynthesising, parasitic plant species that grows on the branches of mostly Acacia-species, by means of tapping roots. It has glaucus, leathery, entire, 1–6 cm long leaves set oppositely along the stem, with umbels of initially long up-curved pale greenish-yellow buds, that open explosively, the petals usually bright yellow, strongly curling, long stamens and style clear red, orange or pink, and quickly falling after fertilisation. The initially green oval berries color red when ripe. The species is assigned to the showy mistletoe family. In the Afar language it is called hatote, while the vernacular name in the Oromo language is dertu dedacha.
Amorphophallus longispathaceus is a species of corpse flower, of the genus Amorphophallus, native to the southern island of Mindanao in the Philippines and the northern island of Borneo in Indonesia. It produces a tall, single, compound leaf on a thick, fleshy stalk from a big, bowl-shaped tuber. Before a new leaf is produced, mature plants can put up a large, purplish inflorescence that grows to 1 m in height. The multi-coloured elongated spathe, which is triangular with a bell-shaped base, measuring between 30–38 cm (12–15 in) in length and 12–20 cm (4.7–7.9 in) in width, produces an odour similar to that of rotting flesh in order to attract fly pollinators.
