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Pollination characteristics in the mimosoid legume Acacia terminalis (Leguminosae)

, : Pollination characteristics in the mimosoid legume Acacia terminalis (Leguminosae). Plant Systematics and Evolution 157: 49-62

Two isolated populations (valley and montane) of the self-incompatible tree, Acacia terminalis, showed intraspecific variation. The valley population had brighter yellow flowers, more heads per raceme and anthers per flower, and longer styles, but fewer flowers per head than the montane population. The extrafloral nectaries of the montane population were smaller but nectar volumes were similar.

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Related references

Kenrick J.; Bernhardt P.; Marginson R.; Beresford G.; Knox R.B.; Baker I.; Baker H.G., 1987: Pollination related characteristics in the mimosoid legume acacia terminalis leguminosae. Intraspecific varaition has been found several pollination-related characteristics in two isolated populations of the self-incompatible tree Acacia terminalis; floral characteristics including colour and flowering time: style length, size and colo...

Knox R.B.; Kenrick J.; Jobson S.; Dumas C., 1989: Reproductive function in the mimosoid legume acacia retinodes ultrastructural and cytochemical characteristics of stigma receptivity. The stigma of Acacia retinodes is receptive from the moment the flower opens (female phase). Receptivity, assessed in terms of pod set, is highest at flower opening, and lowest the following day (male phase). Stigma receptivity is associated with...

Thangaraja, A.; Kumar, N.S.; Ganesan, V., 1999: Pollinators of a mimosoid legume, Acacia nilotica. A total of 15 flower visitors were observed on A. nilotica, of which most were insects, including Apis mellifera. The sunbird, Nectarina sp., was also recorded.

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Marginson R.; Sedgley M.; Knox R.B., 1985: Structure and histochemistry of the extrafloral nectary of acacia terminalis leguminosae mimosoideae. The extrafloral nectary of A. terminalis is of the flat type and is located on the adaxial surface of the petiole of the bipinnate leaf. The secretory area is restricted to the base of the trough and no gaps or pores were detected by staining with...

Marginson, R.S.dgley, M.K.ox, R., 1985: Structure and histochemistry of the extrafloral nectary of Acacia terminalis (Salisb.) MacBride (Leguminosae, Mimosoideae). Protoplasma 27(1-2): 21-30

Knox, RB.; Kenrick, J.; Bernhardt, P.; Marginson, R.; Beresford, G.; Baker, I.; Baker, HG., 1985: Extrafloral nectaries as adaptations for bird pollination in Acacia terminalis. Each leaf of Acacia terminalis bears a single red nectary up to 12 mm long on its petiole. Nectaries show greatest secretory activity at flowering (maximum 15 micro l/nectary/day), and nectar was found only in the early morning. The nectar contain...

Bernhardt, P.; Kenrick, J.; Knox, RB., 1984: Pollination biology and the breeding system of Acacia retinodes (Leguminosae: Mimosoideae). Coastal populations of Acacia retinodes var. uncifolia in SE Australia were protogynous and highly self-incompatible. Flowers were nectarless but insects appeared to be attracted by the yellow flowers and by the distinctive fragrance which origina...

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