Johann Hedwig, also seen as Johannes Hedwig or Latinised as Joannis Hedwig, was a German botanist notable for his studies of mosses (for which he is sometimes called the father of bryology), in particular the observation of sexual reproduction in the cryptogams. He was born in Romania, and studied medicine at the University of Leipzig, receiving an M.D. in 1759.
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- Johann Hedwig, also seen as Johannes Hedwig or Latinised as Joannis Hedwig, was a German botanist notable for his studies of mosses (for which he is sometimes called the father of bryology), in particular the observation of sexual reproduction in the cryptogams. He was born in Romania, and studied medicine at the University of Leipzig, receiving an M.D. in 1759. He then practiced as a physician for the next twenty years, during which time he pursued botany as a hobby, collecting in the morning before work and then studying his accumulation in the evening. He also acquired a microscope and a small library. Over time his publications attracted attention, and he eventually achieved both a professorship at Leipzig (first in medicine in 1786, then in botany in 1789), and direction of the Leipzig Botanical Garden. Skilled at both microscopy and biological illustration, he was able to identify moss antheridia and archegonia. He directly observed the germination of spores and formation of the protonema. He was less successful with other sporophytes, being unable to determine the life cycles of ferns or fungi, but he did make useful observations on the algae Chara and Spirogyra and he made it clear that he was not the first to get new plants from sowing the spores of mosses, C. Meese had done it before him. His chief work, Species Muscorum Frondosorum was published posthumously, in 1801. It describes nearly all the moss species then known, and is the starting point for nomenclature of all mosses, except for the sphagnum group. In 1790, he was elected a foreign member of the Royal Swedish Academy of Sciences. Hedwig is commemorated both by the moss genus Hedwigia as well as a journal Hedwigia.
- Johannes [Johann] Hedwig war ein deutscher Botaniker und Arzt. Er gilt als Begründer der modernen Bryologie. Sein offizielles botanisches Autorenkürzel lautet „Hedw. “.
- Johannes Hedwig fue un célebre médico y botánico especialista en briófitas alemán, profesor de ambas ciencias en Leipzig. Estudia Medicina en la Universidad de Leipzig, recibiendo su M.D. en 1759. Practicará la profesión liberal de médico por los siguientes veinte años, durante los cuales aprende Botánica como un hobby, coleccionando en las mañanas antes de la jornada laboral, y luego estudiando sus acumulaciones en el atardecer. Adquiere un microscopio y acrecienta una biblioteca. Hizo estudios especiales sobre las plantas gramíneas y criptógamas; escribió diferentes obras como Historia natural de los musgos. 1882-1883. 2 partes Teoría de la generación y fructificación de las plantas criptógamas Linnaei. 1798 Abbildungen kryptogamischer Gewächse. 1787-1797. 4 tomos Del nacimiento de la fibra animal y vegetal (1799-1803, fasc. 1-4), los dos fascículos últimos los edita su hijo Roman Adolf Hedwig (1772-1806) Sammlung meiner zerstreuten Abhandlungen (Instrucciones para secar y ordenar las plantas). 1793-1797. 2 tomos
- Johannes Hedwig (1730-1799) oli saksalainen kasvitieteilijä ja sammaltutkija. Hän oli lehtisammalten tutkimuksen uranuurtaja. Suuri osa Euroopan ja samalla Suomen lehtisammallajeista on Hedwigin ensimmäisenä tieteelle kuvaamia, kuten metsäkerrossammal Hylocomium splendens (Hedw.). Hedwig kunnostautui myös sammalkasvien anatomian tutkijana. Hän tutki mm. lehtisammalten siittiö- ja munapesäkkeitä.
- Johannes [Johann] Hedwig. Botaniste et médecin allemand, il est le père de la Bryologie moderne.
- Fájl:Johann Hedwig. jpg Johann Hedwig Johann Hedwig erdélyi szász orvos és természettudós.
- Studiò medicina a Lipsia, ma, tornato a Kronstadt, non la poté esercitare, perché le leggi esigevano che il diploma fosse conseguito a Vienna. Si stabilì a Chemnitz in Sassonia, ove iniziò i suoi studi botanici sulle graminacee e sulle crittogame. Nel 1781 tornò a Lipsia, prima come medico presso l'ospedale, poi, nel 1786, come professore di medicina e finalmente, dal 1789, come professore di botanica e ispettore del giardino botanico. Osservatore sagace ed esperto microscopista, impostò su nuove basi lo studio delle crittogame, e particolarmente delle briofite, nella sua opera Fundamentum historiae naturalis muscorum frondosorum (Lipsia 1782-83) e nell'altra: Theoria generationis et fructificationis plantarum cryptogamarum (Petropoli 1784). Meritevole di particolare menzione è pure la sua Descriptio et adumbratio microscopico-analytica muscorum frondosorum, con 160 tavole colorate (Lipsia 1787-97). Al suo nome fu intitolato il periodico Hedwigia, fondato dal Rabenhorst nel 1852, e che tuttora continua, dedicato allo studio delle crittogame.
- Иоганн Хедвиг — немецкий ботаник, специалист по тайнобрачным растениям, один из основоположников бриологии. Окончил Лейпцигский университет, в 1759 году получил диплом врача и на протяжении последующих 20 лет занимался ботаникой в свободное от медицинской практики время. Затем его ботанические труды получили признание, в 1789 году он занял кафедру профессора ботаники и пост директора Лейпцигского ботанического сада. Пользуясь микроскопом, Хедвиг сумел наблюдать у мхов антеридий и архегоний, спорообразование и формирование протонемы. Некоторые ценные наблюдения Хедвиг также сделал относительно водорослей. Среди основных работ Хедвига — «Fundamenta historiae naturalis muscorum frondosorum» (вновь издано в 1883 году), «Theoria generationis et fructificationis plantarum cryptogamicarum Linnaei» и «Abbildungen kryptogamischer Gewächse» (1787—1797, 4 тома), однако главный труд его, «Species Muscorum Frondosorum», был издан в 1801 году посмертно: он содержит описание почти всех известных к тому времени мхов и заложил основу их систематики. В память о Хедвиге назван ботанический журнал «Hedwigia». Файл:Abietinella abietina. jpg Abietinella abietina (Hedw. ) M. Fleisch. basionymHypnum
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- Johann Hedwig, also seen as Johannes Hedwig or Latinised as Joannis Hedwig, was a German botanist notable for his studies of mosses (for which he is sometimes called the father of bryology), in particular the observation of sexual reproduction in the cryptogams. He was born in Romania, and studied medicine at the University of Leipzig, receiving an M.D. in 1759.
- Johannes [Johann] Hedwig war ein deutscher Botaniker und Arzt. Er gilt als Begründer der modernen Bryologie. Sein offizielles botanisches Autorenkürzel lautet „Hedw. “.
- Johannes Hedwig fue un célebre médico y botánico especialista en briófitas alemán, profesor de ambas ciencias en Leipzig. Estudia Medicina en la Universidad de Leipzig, recibiendo su M.D. en 1759. Practicará la profesión liberal de médico por los siguientes veinte años, durante los cuales aprende Botánica como un hobby, coleccionando en las mañanas antes de la jornada laboral, y luego estudiando sus acumulaciones en el atardecer. Adquiere un microscopio y acrecienta una biblioteca.
- Johannes Hedwig (1730-1799) oli saksalainen kasvitieteilijä ja sammaltutkija. Hän oli lehtisammalten tutkimuksen uranuurtaja. Suuri osa Euroopan ja samalla Suomen lehtisammallajeista on Hedwigin ensimmäisenä tieteelle kuvaamia, kuten metsäkerrossammal Hylocomium splendens (Hedw.). Hedwig kunnostautui myös sammalkasvien anatomian tutkijana. Hän tutki mm. lehtisammalten siittiö- ja munapesäkkeitä.
- Johannes [Johann] Hedwig. Botaniste et médecin allemand, il est le père de la Bryologie moderne.
- Fájl:Johann Hedwig. jpg Johann Hedwig Johann Hedwig erdélyi szász orvos és természettudós.
- Studiò medicina a Lipsia, ma, tornato a Kronstadt, non la poté esercitare, perché le leggi esigevano che il diploma fosse conseguito a Vienna. Si stabilì a Chemnitz in Sassonia, ove iniziò i suoi studi botanici sulle graminacee e sulle crittogame. Nel 1781 tornò a Lipsia, prima come medico presso l'ospedale, poi, nel 1786, come professore di medicina e finalmente, dal 1789, come professore di botanica e ispettore del giardino botanico.
- Иоганн Хедвиг — немецкий ботаник, специалист по тайнобрачным растениям, один из основоположников бриологии. Окончил Лейпцигский университет, в 1759 году получил диплом врача и на протяжении последующих 20 лет занимался ботаникой в свободное от медицинской практики время.
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- Johann Hedwig
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- Johannes Hedwig
- Johannes Hedwig
- Johann Hedwig
- Johann Hedwig
- Хедвиг, Иоганн
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