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Zoellnerallium
''Zoellnerallium'' is a genus of perennial herbaceous geophytes in the flowering plant family Amaryllidaceae. It is native to South America. It is included in the tribe Gilliesieae, within the subfamily Allioideae. It is considered to be part of a group of four genera within Gilliesieae, referred to as Ipheieae ''nom. nud. In taxonomy, a ''nomen nudum'' ('naked name'; plural ''nomina nuda'') is a designation which looks exactly like a scientific name of an organism, and may have originally been intended to be one, but it has not been published with an adequate desc ...''. In 2014 it was proposed to create a new tribe Leucocorynae with six genera, including ''Zoellnerallium'', by splitting Gilliesieae into two separate tribes. References Bibliography * * * {{Taxonbar, from=Q6171465 Amaryllidaceae genera Allioideae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierfelice Ravenna
Pierfelice (Pedro Félix, Pierre Félice) Ravenna (born 1938) is a Chilean botanist of Italian Jewish origin. His research interests are mainly in the field of South American Amaryllidaceae.Ravenna P. 1974 Pierfelice Ravenna: an autobiography. Plant Life 30. (1-4): 6-10 Selected publications * 1970a. ''Nuevas especies de Amaryllidaceae''. Notic. Mens. Mus. Nac. Hist. Nat. Santiago 269 : 1-7 * 1970b. ''Contributions to South American Amaryllidaceae III''. Pl. Life 37: 73–103, figs. 18-25 * * 1972. ''Latin American Amaryllidis 1971''. Pl. Life 28: 119–127, figs. 28-30 * 1974. ''Contributions to South American Amaryllidaceae VI''. Pl. Life 30: 29-79 * 1978. ''Studies in the Alliaceae‑II (error tip. "Alliae”)''. Pl. Life 34 (2): 3-10 * * 1983. '' Catila and Onira, two new genera of South American Iridaceae''. Nordic Journal of Botany 3 ( 2): 197-205 * 1988. ''New species of South American Habranthus and Zephyranthes (Amaryllidaceae)''. Onira 1 (8): 53-56 * 2000a. ''New or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. '' Panthera leo'' (lion) and '' Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. They include all forbs (flowering plants without a woody stem), grasses and grass-like plants, a vast majority of broad-leaved trees, shrubs and vines, and most aquatic plants. The term "angiosperm" is derived from the Greek words ἀγγεῖον / ('container, vessel') and σπέρμα / ('seed'), meaning that the seeds are enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Angiosperms are distinguished from the other seed-producing plants, the gymnosperms, by having flowers, xylem consisting of vessel elements instead of tracheids, endosperm within their seeds, and fruits that completely envelop the seeds. The ancestors of flowering plants diverged from the common ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amaryllidaceae
The Amaryllidaceae are a family of herbaceous, mainly perennial and bulbous (rarely rhizomatous) flowering plants in the monocot order Asparagales. The family takes its name from the genus '' Amaryllis'' and is commonly known as the amaryllis family. The leaves are usually linear, and the flowers are usually bisexual and symmetrical, arranged in umbels on the stem. The petals and sepals are undifferentiated as tepals, which may be fused at the base into a floral tube. Some also display a corona. Allyl sulfide compounds produce the characteristic odour of the onion subfamily (Allioideae). The family, which was originally created in 1805, now contains about 1600 species, divided into about 70–75 genera, 17 tribes and three subfamilies, the Agapanthoideae (agapanthus), Allioideae ( onions and chives) and Amaryllidoideae ( amaryllis, daffodils, snowdrops). Over time, it has seen much reorganisation and at various times was combined with the related Liliaceae. Since 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
