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Hydnocarpus Ilicifolia
''Hydnocarpus'' is a genus of medium to large trees in the Family Achariaceae; the genus was previously placed in the now defunct family Flacourtiaceae. Species have been recorded from Indochina, Indonesia, Malaysia and the Philippines. Characteristics ''Hydnocarpus'' has alternate leaves, small dioecious racemose flowers, and Capsule (fruit), capsules of which several are sources of chaulmoogra oil and hydnocarpus oil. A species of ''Hydnocarpus'' is thought to Host (biology), host to the Peacock mite ''Tuckerella filipina''. Species ''Plants of the World Online'' currently includes: * ''Dinesh oomburan'' * ''Hydnocarpus alcalae'' C.DC. * ''Hydnocarpus alpinus'' Wight (''H.alpina'') * ''Hydnocarpus annamensis'' Lescot & Sleumer ex Harwood & B.L.Webber * ''Hydnocarpus annamicus'' H.L.Li * ''Hydnocarpus anomalus'' (Merr.) Sleumer * ''Hydnocarpus beccarianus'' Sleumer * ''Hydnocarpus borneensis'' Sleumer * ''Hydnocarpus calophyllus'' (Ridl.) Sleumer * ''Hydnocarpus calvipetal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joseph Gaertner
Joseph Gaertner (12 March 1732 – 14 July 1791) was a German botanist, best known for his work on seeds, ''De Fructibus et Seminibus Plantarum'' (1788-1792). Biography He was born in Calw, and studied in Göttingen under Albrecht von Haller. He was primarily a naturalist, but also worked at physics and zoology. He travelled extensively to visit other naturalists. He was professor of anatomy in Tübingen in 1760, and was appointed professor of botany at St Petersburg in 1768, but returned to Calw in 1770. Gaertner made back cross to convert one species into another. Back cross increases nuclear gene frequency His observations were: 1. Dominance of traits 2. Equal contribution of male and female to the progeny 3. No variation in F1 (first generation of descendants) 4. Large variation in F2 (second generation of descendants) including parental and intermediate types 5. Some of F2 plants had entirely new traits but he was unable to give possible explanation for observ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
