Un híbrido natural de Hydrocotyle (Umbelliferae)
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| 格式: | artículo original |
| 狀態: | Versión publicada |
| Fecha de Publicación: | 1960 |
| 實物特徵: | Hydrocotyle X nubibigena Rodríguez, hyb. nov. is described as a natural hybrid of H . mexicana Cham. & Schlecht. X H. pusilla A . Rich, collected in five sites of the central highlands of Costa Rica where the altitude and the NE oricntation of the slope cause abundant fog, drizzles and rain throughout most of the year, and where the parental species, one occurring usually in forest floor, in the shade of roadside tangles or second growth vegetation, or on very humid pastures, the other in open pastures, stream banks or along trails, are brought together by the dimate, human disturbance of the environment, or both. The new taxon is intermediate between the presumed parent species in size, stem thickness and texture, internode length, petiole length, shape of the lamina, peltate character of one and basal sinus of the other, vesture of both leaf sur faces, tuft over base of lamina, size of lamina, peduncle length, peduncle/petiole ratio, number of flowers in umbel, petal color, ovary color, and fruit. |
| País: | Portal de Revistas UCR |
| 機構: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| 語言: | Español |
| OAI Identifier: | oai:archivo.portal.ucr.ac.cr:article/30052 |
| 在線閱讀: | https://archivo.revistas.ucr.ac.cr/index.php/rbt/article/view/30052 |