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Patterns of cuticular organization in the hybrid Tsuga x jeffryi (Henry) Henry and its putative parents
- SHOVEL, KETRINA S., ALVIN, K.L.
- Botanical journal of the Linnean Society 1987 v.94 no.3 pp. 373-383
- Tsuga heterophylla, hybrids, inheritance (genetics), light microscopy, parents, scanning electron microscopy
- The structure of the leaf cuticle of Tsuga heterophylla, T. mertensiana and their putative hybrid, T. X jeffryi, is described using light microscopy and scanning electron microscopy. In all three taxa the cuticle, from its response to varying maceration time and from sections stained in Sudan IV, shows clear evidence of two components: an outer one probably corresponding to the cuticle proper and cuticular layer and an inner spongy component separated from the outer by a cutin-deficient layer. Comparison of the three taxa indicates that T. X jeffryi agrees closely in nearly all cuticle features with T. mertensiana indicating that if the hybrid status of T. X jeffryi is correct, cuticle characters have been inherited predominantly from one parent.