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Lagenandra
''Lagenandra'' is a genus of Aquatic plant, aquatic (to Semiaquatic, semi-aquatic) Flowering plant, flowering plants in the aroid family (biology), family, Araceae, endemism, endemic to the Indian Subcontinent (Bangladesh, India and Sri Lanka). The genus has gradually become more known through the aquascaping and Fishkeeping, aquarium hobby, in which several related Araceae genera are already highly prized and grown on a large scale (notably ''Anubias'', ''Bucephalandra'' and ''Cryptocoryne''); ''Lagenandra'', however, is still relatively rare in cultivation or private collections. The genus is visually-similar to (and, in places, Sympatry, sympatric with) the ''Cryptocoryne'', but is distinguishable for its vernation#Involute vernation, involute vernation (leaf growth); comparatively, ''Cryptocoryne'' tends to exhibit vernation#Convolute vernation, convolute vernation. Description Helophytes, rarely rheophytes, with thick creeping rhizome; leaf blade simple, ovate to almost li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagenandra Koenigii
''Lagenandra'' is a genus of aquatic (to semi-aquatic) flowering plants in the aroid family, Araceae, endemic to the Indian Subcontinent (Bangladesh, India and Sri Lanka). The genus has gradually become more known through the aquascaping and aquarium hobby, in which several related Araceae genera are already highly prized and grown on a large scale (notably ''Anubias'', '' Bucephalandra'' and '' Cryptocoryne''); ''Lagenandra'', however, is still relatively rare in cultivation or private collections. The genus is visually-similar to (and, in places, sympatric with) the ''Cryptocoryne'', but is distinguishable for its involute vernation (leaf growth); comparatively, ''Cryptocoryne'' tends to exhibit convolute vernation. Description Helophytes, rarely rheophytes, with thick creeping rhizome; leaf blade simple, ovate to almost linear, fine venation transverse-reticulate; spathe tube with connate margins; spadix entirely enclosed in spathe tube; flowers unisexual, perigone ab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lagenandra Bogneri
''Lagenandra bogneri'' belongs to the genus ''Lagenandra'' in the family ''Araceae'' that is endemic to south western Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, .... References External links Lagenandra index Isotype of Lagenandra bogneri de Wit [family ARACEAE] bogneri Flora of Sri Lanka Plants described in 1978 {{Araceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hendrik De Wit
Hendrik (Henk) Cornelis Dirk de Wit (24 October 1909 – 16 March 1999) was a Dutch systematic botanist who contributed significantly to the knowledge of the Aroid genera '' Cryptocoryne'' and ''Lagenandra''. He grew up in the Waterland, a marshy area in the Northwest Netherlands, and had a lifelong interest in aquatic plants. Career De Wit studied biology at the University of Amsterdam from 1931 to 1937. In 1937 he left for Pretoria, South Africa, where he worked as an agricultural research officer with the Department of Agriculture. In 1941 he obtained his Ph.D. with a thesis on the genus ''Setaria'' from the grass family (Poaceae). In the same year, he moved to the Dutch East Indies (nowadays Indonesia). During World War II de Wit worked in the 's Lands Plantentuin te Buitenzorg. After his return to The Netherlands in 1946 he worked for the Flora Malesiana Foundation. De Wit was a gifted teacher and on 20 September 1953 he became a lecturer at Leiden University where he ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aqua Planta
''Aqua Planta'' is a German magazine covering aquatic plants and plants cultivated in aquariums. It is the official magazine of the "Arbeitskreis Wasserpflanzen" (Workgroup Waterplants) of the "Verband Deutscher Vereine für Aquarien- und Terrarienkunde". The magazine is published quarterly. Although it is written mostly for and by aquarium plant enthusiasts, professional botanists have occasionally used it to publish their results, including occasional descriptions of newly discovered species (for example, '' Lagenandra dewitii''). The journal is published in German, with occasional English summaries. Christel Kasselmann and Gerd Eggers are among the former editors-in-chief An editor-in-chief (EIC), also known as lead editor or chief editor, is a publication's editorial leader who has final responsibility for its operations and policies. The editor-in-chief heads all departments of the organization and is held accoun ... of the magazine. References External links *Arbeitskre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptocoryne
''Cryptocoryne'' is a genus of aquatic plants from the family Araceae. The genus is naturally distributed in tropical regions of India, Southeast Asia and New Guinea. The English common name "water trumpet" refers to their inflorescence, a spadix enclosed by a spathe (typical for the whole family), which resembles a trumpet. The genus is commonly referred to as to as Crypts by aquarium hobbyists. The typical habitats of ''Cryptocoryne'' are mostly streams and rivers with not too rapidly flowing water, in the lowland forest. They also live in seasonally inundated forest pools or on river banks submerged only at high water. Taxonomy Taxonomic history The first ''Cryptocoryne'' species was described in 1779 as ''Arum spirale'' by Retzius. The genus was described by Friedrich Ernst Ludwig von Fischer in 1828. However, the scientific classification of ''Cryptocoryne'' species remains controversial. Relationship with other genera of Araceae ''Lagenandra'' is another genus closely r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Araceae
The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe (or leaf-like bract). Also known as the arum family, members are often colloquially known as aroids. This family of 114 genera and about 3,750 known species is most diverse in the New World tropics, although also distributed in the Old World tropics and northern temperate regions. Description Within the Araceae, species are often rhizomatous or tuberous; many are epiphytic, creeping lianas or vining plants, and the leaves and tissues of the entire plant nearly always contains irritating calcium oxalate crystals or raphides, in varying degrees. The foliage can vary considerably from species to species. The majority of species produce an inflorescence consisting of a spadix (which some compare to a corn cob, in appearance), which is nearly always surrounded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South India
South India, also known as Southern India or Peninsular India, is the southern part of the Deccan Peninsula in India encompassing the states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Telangana as well as the union territories of Lakshadweep and Puducherry, occupying 19.31% of India's area () and 20% of India's population. It is bound by the Bay of Bengal in the east, the Arabian Sea in the west and the Indian Ocean in the south. The geography of the region is diverse, with two mountain ranges, the Western and Eastern Ghats, bordering the plateau heartland. The Godavari, Krishna, Kaveri, Penna, Tungabhadra and Vaigai rivers are important non-perennial sources of water. Chennai, Bengaluru, Hyderabad, Coimbatore and Kochi are the largest urban areas in the region. The majority of the people in South India speak at least one of the four major Dravidian languages: Telugu, Tamil, Kannada and Malayalam. During its history, a number of dynastic kingdoms ruled ove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bucephalandra
''Bucephalandra'' is a genus of flowering plants in the family Araceae. There are 30 species of ''Bucephalandra'' which have been discovered in Borneo and have been formally described by S.Y. Wong and P.C. Boyce. Most of the species are found in Borneo. ''Bucephalandra'' are usually found growing as dense mats over stones or rocks in streams or rivers in moist tropical forest. Etymology ''Bucephalandra'' is derived from Greek words, βοῦς (''bous''; bull or cow), κεφαλή (''kephalē''; head) and ἀνήρ (''anēr''; man), referring to the shape of the single male ( staminate) flowers. Description These rheophytic (very seldom facultative) herbs can be minute to rather large, about 2 cm to 60 cm tall. Their stems are creeping and rooting, with a few or many leaves. The leaves can be quite delicate or tough and their shapes can be elliptic, oblong, linear, oblanceolate or obovate. Most of the leaf surfaces are rather glossy and the colours of the leaf ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wim Crusio
Wim E. Crusio (born Wilhelmus Elisabeth Crusio on 20 December 1954) is a Dutch behavioral neurogeneticist and a '' directeur de recherche'' (research director) with the French National Centre for Scientific Research in Talence, France. Education and career Crusio received his bachelor's degree in biology from Radboud University Nijmegen in 1975, where he went on to obtain a master's degree and then a PhD in 1979 and 1984, respectively. His ''Anubias'' revision, which was originally published in 1979, was translated in German and continues to engender interest. For his PhD thesis, Crusio studied the inheritance of the effects of anosmia on exploratory behavior of mice, and more in general the genetic architecture of exploratory behavior, using quantitative-genetic methods such as the diallel cross. From 1984 to 1987, Crusio worked as a postdoc at the University of Heidelberg, supported by a NATO Science Fellowship and an Alexander von Humboldt Research Fellowship. During 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spadix (botany)
In botany, a spadix ( ; : spadices , ) is a type of inflorescence having small flowers borne on a fleshy stem. Spadices are typical of the family Araceae, the arums or aroids. The spadix is typically surrounded by a leaf-like curved bract known as a spathe. For example, the "flower" of the well known ''Anthurium'' spp. is a typical spadix with a large colorful spathe. In this type of inflorescence, the Peduncle (botany), peduncle is thick, long and fleshy, having small sessile unisexual flowers covered with one or more large green or colourful Bract, bracts (spathe). Spadix inflorescence is found in colocasia, Araceae, aroids, maize and Arecaceae, palms (palms have compound spadix). Plant sexuality, Monoecious aroids have unisexual male and female flowers on the same individual and the spadix is usually organized with female flowers towards the bottom and male flowers towards the top. Typically, the Stigma (botany), stigmas are no longer receptive when pollen is released which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spathe
In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also look different from the parts of the flower, such as the petals or sepals. A plant having bracts is referred to as bracteate or bracteolate, while one that lacks them is referred to as ebracteate or ebracteolate. Variants Some bracts are brightly coloured which aid in the attraction of pollinators, either together with the perianth or instead of it. Examples of this type of bract include those of '' Euphorbia pulcherrima'' (poinsettia) and ''Bougainvillea'': both of these have large colourful bracts surrounding much smaller, less colourful flowers. In grasses, each floret (flower) is enclosed in a pair of papery bracts, called the lemma (lower bract) and palea (upper bract), while each spikelet (group of florets) has a further pair of bra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
