ISHS Acta Horticulturae 508: XIX International Symposium on Improvement of Ornamental Plants
MANAGEMENT AND KNOWLEDGE OF THE HYDRANGEA COLLECTION OF ANGERS. MORPHOLOGICAL CHARACTERS AND DATA ANALYSIS |
| Author: | H. Bertrand |
| Keywords: | Hydrangea macrophylla, Hydrangea serrata, morphological characters, multidimensional analysis |
| Abstract:
The reference collection of the genus Hydrangea established in Angers includes now 380 accessions. Although the main number of taxa belongs to H. macrophylla Ser., 13 species are present. For a good management of the collection (typing of varieties, search of synonyms…) and a better knowledge of the genus, most of the taxa form the subject of a morphological study. Data analysis have been realised on 292 cultivars of H. macrophylla Ser., 28 qualitative criteria and 5 quantitative criteria were used. These multidimensional analysis allow us to separate and to characterise two subspecies (macrophylla and serrata) and to point out some hybrids. | |
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