''Roseodendron'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

s in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Bignoniaceae Bignoniaceae is a family of flowering plants in the order Lamiales commonly known as the bignonias or trumpetvines.Vernon H. Heywood, Richard K. Brummitt, Ole Seberg, and Alastair Culham. ''Flowering Plant Families of the World''. Firefly Books: ...

.David J. Mabberley. 2008. ''Mabberley's Plant-Book'' third edition (2008). Cambridge University Press: UK. It consists of two

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

, '' Roseodendron donnell-smithii'' and ''

Roseodendron chryseum ''Roseodendron'' is a genus of flowering plants in the family Bignoniaceae.David J. Mabberley. 2008. ''Mabberley's Plant-Book'' third edition (2008). Cambridge University Press: UK. It consists of two species, '' Roseodendron donnell-smithii'' a ...

''. The

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

for the genus is ''R. donnell-smithii''.''Roseodendron'' In: Index Nominum Genericorum. In:

Regnum Vegetabile The International Association for Plant Taxonomy (IAPT) is an organization established to promote an understanding of plant biodiversity, facilitate international communication of research between botanists, and oversee matters of uniformity and ...

(see ''External links'' below). Both species are cultivated as

ornamentals Ornamental plants or garden plants are plants that are primarily grown for their beauty but also for qualities such as scent or how they shape physical space. Many flowering plants and garden varieties tend to be specially bred cultivars that i ...

for their numerous, large, yellow flowers.

Anthony Huxley Anthony Julian Huxley (2 December 1920 – 26 December 1992) was a British botanist. He edited '' Amateur Gardening'' from 1967 to 1971, and was vice-president of the Royal Horticultural Society in 1991. He was the son of Julian Huxley. He was ...

, Mark Griffiths, and Margot Levy (1992). ''The New Royal Horticultural Society Dictionary of Gardening''. The Macmillan Press,Limited: London. The Stockton Press: New York. (set). ''Roseodendron donnell-smithii'' is known

colloquially Colloquialism (), also called colloquial language, everyday language or general parlance, is the style (sociolinguistics), linguistic style used for casual (informal) communication. It is the most common functional style of speech, the idiom norm ...

as primavera. It is the larger and more frequently planted of the two species.George W. Staples and Derral R. Herbst. 2005. "A Tropical Garden Flora" Bishop Museum Press: Honolulu, HI, USA. Its

wood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin th ...

is sometimes used to make

furniture Furniture refers to movable objects intended to support various human activities such as seating (e.g., stools, chairs, and sofas), eating (tables), storing items, eating and/or working with an item, and sleeping (e.g., beds and hammocks). Fu ...

. It is

native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entert ...

Central America Central America ( es, América Central or ) is a subregion of the Americas. Its boundaries are defined as bordering the United States to the north, Colombia to the south, the Caribbean Sea to the east, and the Pacific Ocean to the west. ...

and southern

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

, but is grown throughout the

tropics The tropics are the regions of Earth surrounding the Equator. They are defined in latitude by the Tropic of Cancer in the Northern Hemisphere at N and the Tropic of Capricorn in the Southern Hemisphere at S. The tropics are also referred to ...

. ''Roseodendron chryseum'' is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the

dry forest Dry or dryness most often refers to: * Lack of rainfall, which may refer to **Arid regions **Drought * Dry or dry area, relating to legal prohibition of selling, serving, or imbibing alcoholic beverages * Dry humor, deadpan * Dryness (medical) * ...

s of northern

Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...

and northwestern

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

. It is known as araguaney, a name that also applies to ''

Handroanthus chrysanthus ''Handroanthus chrysanthus'' (araguaney or yellow ipê), formerly classified as ''Tabebuia chrysantha'', also known as ''araguaney'' in Venezuela, as ''guayacán'' in Colombia, Panama, and Ecuador, as ''tajibo'' in Bolivia, and as ''ipê-amarelo ...

''. It differs from ''R. donnell-smithii'' in its smaller stature, smaller fruit, and more compact inflorescence. The inflorescence is a

panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...

, but appears

racemose A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...

because of the short lateral branches and

pedicels In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absenc ...

.Alwyn H. Gentry. 1992. "Bignoniaceae: Part II (Tribe Tecomeae)". ''Flora Neotropica'' Monograph 25(part 2):1-373. Both species have been placed in '' Cybistax'' and in ''

Tabebuia ''Tabebuia'' is a genus of flowering plants in the family Bignoniaceae.Eberhard Fischer, Inge Theisen, and Lúcia G. Lohmann. 2004. "Bignoniaceae". pages 9-38. In: Klaus Kubitzki (editor) and Joachim W. Kadereit (volume editor). ''The Families a ...

'', and they were thought to be closely related to ''

Handroanthus ''Handroanthus'' is a genus of flowering plants in the family Bignoniaceae.David J. Mabberley. 2008. ''Mabberley's Plant-Book'' third edition (2008). Cambridge University Press: UK. It consists of 30 species of trees, known in Latin America by ...

''. In 2007, a

molecular phylogenetic Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...

study Study or studies may refer to: General * Education **Higher education * Clinical trial * Experiment * Observational study * Research * Study skills, abilities and approaches applied to learning Other * Study (art), a drawing or series of drawi ...

showed that ''Roseodendron'' is not closer to ''Tabebuia'' than '' Ekmanianthe'', not closer to ''Cybistax'' than are '' Godmania'' and '' Zeyheria'', and not closer to ''Handroanthus'' than are '' Spirotecoma'', '' Parmentiera'', ''

Crescentia ''Crescentia'' (calabash tree, huingo, krabasi, or kalebas) is a genus of six species of flowering plants in the family Bignoniaceae, native to southern North America, the Caribbean, Central America northern South America. The species are mode ...

'', and ''

Amphitecna ''Amphitecna'' is a genus of plants in the family Bignoniaceae. Species include: *'' Amphitecna apiculata'' A.H.Gentry *'' Amphitecna breedlovei'' A.H.Gentry *'' Amphitecna costata'' A.H.Gentry *'' Amphitecna donnell-smithii'' (Sprague) L.O.Will ...

''.Susan O. Grose and Richard G. Olmstead. 2007. "Evolution of a Charismatic Neotropical Clade: Molecular Phylogeny of ''Tabebuia'' s.l., Crescentieae, and Allied Genera (Bignoniaceae)". ''Systematic Botany'' 32(3):650-659. The authors recommended that ''Roseodendron'' be resurrected from ''Tabebuia'', under which most authors of that time had synonymized it.Susan O. Grose and Richard G. Olmstead. 2007. "Taxonomic Revisions in the Polyphyletic Genus ''Tabebuia'' s.l. (Bignoniaceae)". ''Systematic Botany'' 32(3):660-670.

Description

* The

is not especially heavy or hard, like that of ''Handroanthus''. * The

indumentum In biology, an indumentum (Latin, literally: "garment") is a covering of trichomes (fine "hairs") on a plant Davis, Peter Hadland and Heywood, Vernon Hilton (1963) ''Principles of angiosperm taxonomy'' Van Nostrandpage, Princeton, New Jersey, pa ...

is of

lepidote A leaf (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...

scales and small

glandular In animals, a gland is a group of cells in an animal's body that synthesizes substances (such as hormones) for release into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland). Structure De ...

hairs Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals. The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and f ...

. * The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

has an erect and sturdy central

rachis In biology, a rachis (from the grc, ῥάχις [], "backbone, spine") is a main axis or "shaft". In zoology and microbiology In vertebrates, ''rachis'' can refer to the series of articulated vertebrae, which encase the spinal cord. In this c ...

. * The calyx is spathaceous, usually somewhat viscid, and is soft and thin like the corolla. * The corolla is

yellow Yellow is the color between green and orange on the spectrum of light. It is evoked by light with a dominant wavelength of roughly 575585 nm. It is a primary color in subtractive color systems, used in painting or color printing. In the R ...

and sometimes has thin, red lines. * The

fruit In botany, a fruit is the seed-bearing structure in flowering plants that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...

is bullate and irregularly costate. The calyx texture and inflorescence structure of ''Roseodendron'' distinguish it clearly from ''Handroanthus'' and ''Tabebuia''. The fruit ridges are much more conspicuous than those of any species of ''Tabebuia''.

History

''Roseodendron donnell-smithii'' was named by Joseph N. Rose in 1892''Roseodendron'' in International Plant Names Index. (see ''External links'' below). as a species of ''Tabebuia''.Joseph N. Rose. 1892. Botanical Gazette; Paper of Botanical Notes. 17: 418, tab. 26 (since 1992, ''

International Journal of Plant Sciences The ''International Journal of Plant Sciences'' covers botanical research including genetics and genomics, developmental and cell biology, biochemistry and physiology, morphology and structure, systematics, plant-microbe interactions, paleobotany, ...

''). The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

honors

Captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...

John Donnell Smith Captain John Donnell Smith (June 5, 1829 – December 2, 1928) of Baltimore, Maryland was a biologist and taxonomist. He was also an officer in the Confederate army. He was a graduate of Yale in 1847, where he was a member of Skull and Bones. ...

(1829–1928), a

biologist A biologist is a scientist who conducts research in biology. Biologists are interested in studying life on Earth, whether it is an individual Cell (biology), cell, a multicellular organism, or a Community (ecology), community of Biological inter ...

and

officer An officer is a person who has a position of authority in a hierarchical organization. The term derives from Old French ''oficier'' "officer, official" (early 14c., Modern French ''officier''), from Medieval Latin ''officiarius'' "an officer," f ...

in the

Confederate States Army The Confederate States Army, also called the Confederate Army or the Southern Army, was the military land force of the Confederate States of America (commonly referred to as the Confederacy) during the American Civil War (1861–1865), fighting ...

.Elbert L. Little, Jr. and Roger G. Skolmen. 1989. ''Common Forest Trees of Hawaii''.

United States Forest Service The United States Forest Service (USFS) is an agency of the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands. The Forest Service manages of land. Major divisions of the agency inc ...

pdf Portable Document Format (PDF), standardized as ISO 32000, is a file format developed by Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, hardware, and operating systems. ...

by ctahr (2005). (See ''External links'' below). ''Roseodendron chryseum'' was named by

Sidney Fay Blake Sidney Fay Blake (1892–1959) was an American botanist and plant taxonomist, "recognized as one of the world's experts on botanical nomenclature." Biography Blake was born in 1892 in Stoughton, Massachusetts. In 1912, he received a bachelor's d ...

in 1918 as a species of ''Tabebuia''.Sidney Fay Blake. 1918. title?. ''Contributions from the Gray Herbarium of Harvard University'' 53( ):50. The specific epithet is

derived Derive may refer to: * Derive (computer algebra system), a commercial system made by Texas Instruments * ''Dérive'' (magazine), an Austrian science magazine on urbanism *Dérive, a psychogeographical concept See also * *Derivation (disambiguatio ...

from a

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

word meaning "gold colored".Chuck Griffith. 2005. Dictionary of Botanical Epithets (website). (See ''External links'' below). ''Roseodendron donnell-smithii'' was transferred from ''Tabebuia'' to '' Cybistax'' by Russell J. Seibert in 1940.Russell J. Seibert. 1940. "Botany of the Maya Area". ''Publications of the Carnegie Institution of Washington'' 522:392. Seibert did likewise for ''R. chryseum'' soon afterward, in the same year.Russell J. Seibert. 1940. "New names in ''Cybistax'' and ''Tabebuia''". ''Tropical Woods'' 63:7-8. The genus ''Roseodendron'' was described in 1965 by Faustino Miranda Gonzalez.Faustino Miranda-Gonzalez. 1965. "Estudios acerca de arboles y arbustos de America Tropical principamente de Mexico". ''Boletin de la Sociedad Botanica de Mexico'' 29( ):34-49. It was named for

Joseph Nelson Rose Joseph Nelson Rose (January 11, 1862 – May 4, 1928) was an American botanist. He was born in Union County, Indiana. His father died serving during the Civil War when Joseph Rose was a young boy. He later graduated from high school in Libert ...

. ''Dendron'' is a

word meaning "tree". Miranda assigned to ''Roseodendron'' the same 2 species that it includes today. Both of these species were transferred back to ''Tabebuia'' by Alwyn H. Gentry in 1992. In that year, Gentry published a

taxonomic Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...

revision of ''Tabebuia'' in

Flora Neotropica ''Flora Neotropica'' is a series of monographs published by the New York Botanical Garden Press, and is the official publication of the Organization for Flora Neotropica. It covers the taxonomic treatment of American plants and plant families i ...

. He divided ''Tabebuia'' into 10 species groups, including all of the species now placed in ''Roseodendron'' and ''Handroanthus''. His group 1 corresponds to ''Roseodendron''. In 2007, a

phylogenetic In biology, phylogenetics (; from Greek φυλή/ φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups o ...

analysis of

DNA sequence DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine. Th ...

s resolved ''Roseodendron'' as one member of a tetratomy that is

sister A sister is a woman or a girl who shares one or more parents with another individual; a female sibling. The male counterpart is a brother. Although the term typically refers to a familial relationship, it is sometimes used endearingly to refer to ...

to '' Sparattosperma'', the most basal

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...

in the ''Tabebuia''

alliance An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...

. A

phylogenetic tree A phylogenetic tree (also phylogeny or evolutionary tree Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, MA.) is a branching diagram or a tree showing the evolutionary relationships among various biological spec ...

can be seen at

. The ''Tabebuia'' alliance is an informally named

monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic gro ...

group A group is a number of persons or things that are located, gathered, or classed together. Groups of people * Cultural group, a group whose members share the same cultural identity * Ethnic group, a group whose members share the same ethnic ide ...

that is not placed at any

taxonomic rank In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family (biology), family, order (biology), order, class (b ...

. It consists of genera that had formerly been placed in the

tribe The term tribe is used in many different contexts to refer to a category of human social group. The predominant worldwide usage of the term in English language, English is in the discipline of anthropology. This definition is contested, in p ...

Tecomeae Tecomeae is a tribe with 44 genera of trees, shrubs, and vines in the family Bignoniaceae. Genera * '' Argylia'' * '' Astianthus'' * '' Campsidium'' * '' Campsis'' * '' Catalpa'' * '' Catophractes'' * '' Chilopsis'' * '' Cybistax'' * '' Del ...

.Richard G. Olmstead, Michelle L. Zjhra, Lúcia G. Lohmann, Susan O. Grose, and Andrew J. Eckert. 2009. "A molecular phylogeny and classification of Bignoniaceae". ''American Journal of Botany'' 96(9):1731-1743.

Description

History

References

External links