ISHS Acta Horticulturae 545: V International Protea Research Symposium
MORPHOLOGICAL FEATURES AND STOMATAL DENSITY IN SEVERAL PROTEACEAE SPECIES |
| Authors: | G.A. Reynoso-Castillo, M. Morokuma, M. Kuyama, A. Hasegawa, M. Goi |
| Keywords: | Banksia, Protea, Telopea, leaf anatomy |
| DOI: | 10.17660/ActaHortic.2001.545.32 |
| Abstract:
Aspects of stomatal characteristics and inner structures were studied in leaves of eight Proteaceae species. Of the eight, six species belonging to the genus Protea were amphistomatous, and Banksia speciosa and Telopea speciosissima were hypostomatous. The former species shared sunken stomata with an epistomatal cavity. In this group the morphology and stomatal density on both sides were almost the same. The latter species displayed the smallest stomatal dimensions with the greatest stomatal density. The abaxial side of T. speciosissima leaves presented thicker cuticle among which elliptical stomata surged. The palisade tissue was single-layered in juvenile plants but was double-layered in adult plants. The adaxial epidermis of B. speciosa leaves was constituted by 2-3 layers of transparent and amorphous cells below which included a palisade tissue containing abundant chloroplasts. The abaxial surface was covered by a densely trichomes layer, and small, elliptic stomata were localized in the wall and the bottom of contiguous depressions. | |
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