رسالة جامعية
Citología, morfología y taxonomía del género bulbostylis (cyperaceae) para América Austral
| العنوان: | Citología, morfología y taxonomía del género bulbostylis (cyperaceae) para América Austral |
|---|---|
| المؤلفون: | López, María Gabriela |
| المساهمون: | Fernández, Aveliano, Guaglianone, Encarnación Rosa |
| بيانات النشر: | Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica del Nordeste |
| سنة النشر: | 2012 |
| المجموعة: | Repositorio Institucional de la Universidad Nacional del Nordeste (RIUNNE) |
| مصطلحات موضوعية: | Citología, Morfología, Taxonomía, América Austral |
| الوصف: | Bulbostylis Kunth includes approximately 150 species from tropical and subtropical habitats throughout the world. Some species can be found in temperate areas, with the southern limit of the genus in South America at 42 ° S. The genus has two important centers of diversity: África and South America (especially central Brazil). Most species are found in open habitats such as savannas often sandy soils and damp at least part of the year. This paper deals the genus Bulbostylis for Southern America (Brasil: Paraná, Santa Catarina y Rio Grande do Sul; Paraguay; Argentina; Chile y Uruguay) Taxonomic and anatomical studies were made to elucidate the nomenclatural problems and species delimitation. Maps showing the area of all recognized taxa were presented. Descriptions of the characters of taxonomic and identification keys were made. For the study area were recognized 19 specific names, varieties and forms. In herbarium consult were found abundant material with wrong identifications, possibly as a result of the similarity in the overall appearance of the plants and that the keys not involve stable characters for the taxa. As a result of this study were described and illustrated 24 species and 2 varieties. Were proposed as new synonyms 5 names, 11 varieties and 7 forms; lectotypes 5 species and 3 varieties; neotypes rises to the rank of species one form, was rehabilitated a new varietal name, has extended the range of four species, Bulbostylis arenaria (Nees) Lindm. B. capillaris (L.) C. B. Clarke, B. conifera (Kunth) C.B. Clarke, B. fendleri C. B. Clarke, B. filamentosa (Vahl) C. B. Clarke y B. fimbriata (Nees) C. B. Clarke were excluded from the study area and described six new species and a new variety. In the genus Bulbostylis as in other genera of Cyperaceae, the exomorphology fruit is one of the more stable characters for infra and intergeneric classification were described comparatively exomorphological characters of the fruit. We also performed the microanalysis of the fruit. In some way off the silicon bodies ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| وصف الملف: | application/ pdf; 232 p.; application/pdf |
| اللغة: | Spanish; Castilian |
| العلاقة: | López, María Gabriela, 2012. Citología, morfología y taxonomía del género bulbostylis (cyperaceae) para América Austral. Tesis doctoral. Corrientes: Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias.; http://repositorio.unne.edu.ar/handle/123456789/474Test |
| الإتاحة: | http://repositorio.unne.edu.ar/handle/123456789/474Test |
| حقوق: | openAccess ; http://creativecommons.org/licenses/by-nc-nd/2.5/arTest/ |
| رقم الانضمام: | edsbas.E754684B |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |