|
Marshall Conring Johnston
Marshall Conring Johnston (born May 10, 1930) is an American botanist who made several explorations in Mexico and specialized in plants in the family Gesneriaceae. Johnston was born in San Antonio in the family of Theodore Harris Johnston and Lucile Mary Conring. He went on his first botanical expeditions to Mexico while still in high school during 1945-1947. On those trips he visited the northern Mexican states of Tamaulipas, Nuevo Leon, Coahuila, Durango, and Zacatecas. From 1972-1974 he made trips to Chihuahua, concentrating on desert flora. These early 1970s trips resulted in the bulk of his botanic collection. Marshal participated in the creation of the books ''Flora of Texas'', ''Flora of North America'', and ''Flora Neotropica''. Johnston was also a professor at the University of Texas at Austin. Plant namesakes * '' Marshalljohnstonia'' (genus), Henrickson, 1976 * '' Colubrina johnstonii'', T.Wendt, 1983 * '' Crataegus johnstonii'', J.B.Phipps, 1997 * '' Euphorbia joh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gesneriaceae
Gesneriaceae, the gesneriad family, is a family of flowering plants consisting of about 152 genera and ca. 3,540 species in the tropics and subtropics of the Old World (almost all Didymocarpoideae) and the New World (most Gesnerioideae), with a very small number extending to temperate areas. Many species have colorful and showy flowers and are cultivated as ornamental plants. Etymology The family name is based on the genus ''Gesneria'', which honours Swiss naturalist and humanist Conrad Gessner. Description Most species are herbaceous perennials or subshrubs but a few are woody shrubs or small trees. The phyllotaxy is usually opposite and decussate, but leaves have a spiral or alternate arrangement in some groups. As with other members of the Lamiales the flowers have a (usually) zygomorphic corolla whose petals are fused into a tube and there is no one character that separates a gesneriad from any other member of Lamiales. Gesneriads differ from related families of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frankenia Johnstonii
''Frankenia johnstonii'' is a species of flowering plant known by the common name Johnston's seaheath, or Johnston's frankenia. It is native to southern Texas in the United States and northern Nuevo León in Mexico, where there are about 30 occurrences known.''Frankenia johnstonii''. . The plant was federally listed as an in the United States in 1984.USFWS [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1930 Births
Year 193 ( CXCIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Sosius and Ericius (or, less frequently, year 946 '' Ab urbe condita''). The denomination 193 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * January 1 – Year of the Five Emperors: The Roman Senate chooses Publius Helvius Pertinax, against his will, to succeed the late Commodus as Emperor. Pertinax is forced to reorganize the handling of finances, which were wrecked under Commodus, to reestablish discipline in the Roman army, and to suspend the food programs established by Trajan, provoking the ire of the Praetorian Guard. * March 28 – Pertinax is assassinated by members of the Praetorian Guard, who storm the imperial palace. The Empire is auctioned o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
21st-century American Botanists
The 1st century was the century spanning AD 1 ( I) through AD 100 ( C) according to the Julian calendar. It is often written as the or to distinguish it from the 1st century BC (or BCE) which preceded it. The 1st century is considered part of the Classical era, epoch, or historical period. The 1st century also saw the appearance of Christianity. During this period, Europe, North Africa and the Near East fell under increasing domination by the Roman Empire, which continued expanding, most notably conquering Britain under the emperor Claudius (AD 43). The reforms introduced by Augustus during his long reign stabilized the empire after the turmoil of the previous century's civil wars. Later in the century the Julio-Claudian dynasty, which had been founded by Augustus, came to an end with the suicide of Nero in AD 68. There followed the famous Year of Four Emperors, a brief period of civil war and instability, which was finally brought to an end by Vespasian, ninth Roman emperor, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johnstonalia
''Johnstonalia'' is a monotypic genus of flowering plants belonging to the family Rhamnaceae. The only species is ''Johnstonalia axilliflora'' It is native to Peru. The genus name of ''Johnstonalia'' is in honour of Marshall Conring Johnston (b. 1930), an American botanist who made several explorations in Mexico and specialized in plants in the family Gesneriaceae. The Latin specific epithet of ''axilliflora'' refers to ''axillary'' meaning borne in or arising from the axil (the junction of leaf and stem) and also 'flora' meaning flower. Both genus and species were first described and published in Novon The Missouri Botanical Garden is a botanical garden located at 4344 Shaw Boulevard in St. Louis, Missouri. It is also known informally as Shaw's Garden for founder and philanthropist Henry Shaw. Its herbarium, with more than 6.6 million s ... Vol.16 on page 433 in 2006. References {{Taxonbar, from1=Q5933819, from2=Q15542886 Rhamnaceae Rhamnaceae genera Monoty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Portulaca Johnstonii
''Portulaca'' (, is the type genus of the flowering plant family Portulacaceae, with over 100 species, found in the tropics and warm temperate regions. They are known as the purslanes. Common purslane (''Portulaca oleracea'') is widely consumed as an edible plant, and in some areas it is invasive. ''Portulaca grandiflora'' is a well-known ornamental garden plant. Purslanes are relished by chickens. Some ''Portulaca'' species are used as food plants by the larvae of some Lepidoptera species including the nutmeg moth (''Hadula trifolii''). Species The following species are accepted: *''Portulaca africana'' (Danin & H.G.Baker) Danin – Western Africa to south China *''Portulaca almeviae'' Ocampo – Mexico *''Portulaca amilis'' Speg. – Paraguayan purslane – Peru to Brazil and N. Argentina *''Portulaca anceps'' A.Rich. – Ethiopia *''Portulaca argentinensis'' Speg. – Argentina *''Portulaca aurantiaca'' Proctor – Jamaica *''Portulaca australis'' Endl. – N. & NE. Austra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phacelia Marshall-johnstonii
''Phacelia'' (phacelia, scorpionweed, heliotrope) is a genus of about 200 species of annual or perennial herbaceous plants in the borage family, native to North and South America. California is particularly rich in species with over 90 recorded in the region. The genus is traditionally placed at family rank with the waterleafs ( Hydrophyllaceae) in the order Boraginales. The Angiosperm Phylogeny Group, recognizing that the traditional Boraginaceae and Hydrophyllaceae are paraphyletic with respect to each other, merges the latter into the former and considers the family basal in the Euasterids I clade. Other botanists continue to recognize the Hydrophyllaceae and Boraginales after analysing the secondary structure of the ITS1 genetic region rather than its sequence for these higher taxonomic levels. This placed ''Phacelia'' within the Hydrophyllaceae. Further molecular taxonomic analysis of the Boraginales has divided the Boraginales in two and placed ''Phacelia'' among th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerisyrenia Johnstonii
''Nerisyrenia'' is a genus of 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 belonging to the family Brassicaceae. Its native range is from the southern-central United States to north-eastern Mexico. Species The following species are recognised in the genus ''Nerisyrenia'': *'' Nerisyrenia baconiana'' *'' Nerisyrenia camporum'' *'' Nerisyrenia castillonii'' *'' Nerisyrenia gracilis'' *'' Nerisyrenia gypsophila'' *'' Nerisyrenia hypercorax'' *'' Nerisyrenia incana'' *'' Nerisyrenia johnstonii'' *'' Nerisyrenia linearifolia'' *'' Nerisyrenia mexicana'' *'' Nerisyrenia powellii'' References {{Taxonbar, from=Q3019569 Brassicaceae Brassicaceae genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Matelea Johnstonii
''Matelea'' is a genus of flowering plants in the family Apocynaceae. It contains about 200 species, which are commonly known as milkvines. Some people consider ''Chthamalia ''Chthamalia'' is a genus of flowering plants in the dogbane family (Apocynaceae: Gonolobinae). The genus was first formally named in 1844. It contains approximately 15 species. ''Chthamalia'' is considered by some to be a synonym or a subgenus ...'' to be a synonym to or a subgenus of ''Matelea''. Selected species Formerly placed here * '' Gonolobus suberosus'' (L.) R.Br. (as ''M. gonocarpos'' (Walter) Shinners or ''M. suberosa'' (L.) Shinners) References External linksJepson Manual Treatment Apocynaceae genera Taxonomy articles created by Polbot {{Apocynaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karwinskia Johnstonii
''Karwinskia'' is a genus of flowering plants in the family Rhamnaceae. Species * '' Karwinskia calderonii'' Standl. * ''Karwinskia humboldtiana'' (Schult.) Zucc. * '' Karwinskia johnstonii'' R.Fernandez * '' Karwinskia latifolia'' Standl. * '' Karwinskia mollis'' Schltdl. * '' Karwinskia parvifolia'' Rose A rose is either a woody perennial flowering plant of the genus ''Rosa'' (), in the family Rosaceae (), or the flower it bears. There are over three hundred species and tens of thousands of cultivars. They form a group of plants that can be ... * '' Karwinskia rzedowskii'' R.Fernandez * '' Karwinskia subcordata'' Schltdl. * '' Karwinskia umbellata'' ( Cav.) Schltdl. References Taxa named by Joseph Gerhard Zuccarini Rhamnaceae genera {{Rhamnaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hedeoma Johnstonii
''Hedeoma'' is a genus of flowering plants in the mint family, Lamiaceae. It is native to North and South America. They are commonly known as false pennyroyals. The genus name is derived from the Greek words ἡδύς (''hedys''), meaning "sweet," and ὀσμή (''osme''), meaning "odour". It refers to the scent of the leaves. ''Hedeoma patens'' M.E. Jones (common name, oregano chiquito) is used by natives of northwestern Mexico to flavor various food items.Forzza, R. C. 2010. Lista de espécies Flora do Brasil . Jardim Botânico do Rio de Janeiro, Rio de Janeiro ;Species # '' Hedeoma acinoides'' Scheele – Slender false pennyroyal - Texas, Oklahoma, Coahuila # '' Hedeoma apiculata'' W.S.Stewart – McKittrick's false pennyroyal - western Texas, southeastern New Mexico # '' Hedeoma bella'' (Epling) R.S.Irving - Jalisco # '' Hedeoma chihuahuensis'' (Henrard) B.L.Turner - Chihuahua # '' Hedeoma ciliolata'' (Epling & W.S.Stewart) R.S.Irving - Gypsum false pennyroyal - Nue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
