Lauraceae - Dahlgrenodendron J.J.M.van der Merwe & A.E.van Wyk
Description:
Tall evergreen trees
Leaves opposite, penninerved, net-veining conspicuous on both surfaces
Inflorescences 3-flowered cymules, arranged on young growth or on short-shoots, with small, caducous bracts
Flowers bisexual, 3-merous, greenish white
Perianth: tube deeply urceolate
Tepals subequal
Male flowers with 9 fertile stamens, the third whorl with glands; filaments much shorter than anthers; anthers 2-thecous, the first and second whorl introrse, the third whorl extrorse; pollen with a well developed, striate exine (apparently unique for the family); staminodes of whorl four conspicuous, ovate-triangular
Ovary sessile, ± immersed in receptacle, narrowed into slender style and small stigma
Fruit completely enclosed in accrescent perianth tube; tepals persistent
Seed with delicate testa
Nomenclature:
Dahlgrenodendron J.J.M.van der Merwe & A.E.van Wyk
Van der Merwe & Van Wyk: 80 (1988)
Kostermans: 35 (1990) in part
Rohwer: 386 (1993)
Beilschmiedia Nees
Ness von Esenbeck: 61, 69 (1831) in part
Ross: 118 (1973)
Distribution & Notes:
Southern Africa: Monotypic: Dahlgrenodendron natalense (J.H.Ross) J.J.M.van der Merwe & A.E.van Wyk, forest in KwaZulu-Natal
References:
KOSTERMANS, A.J.G.H. 1990. Materials for a revision of Lauraceae VI. Botanica Helvetica 100
NEES von ESENBECK, C.G.D. 1831. Laurineae Indiae orientalis. In N. Wallich, Plantae asiaticae rariores 2. Treuttel & Würtz, London, Paris, Strasburgh
ROHWER, J.G. 1993. Lauraceae. In K. Kubitzki, J.G. Rohwer & V. Bittrich, The families and genera of vascular plants - dicotyledons 2. Springer-Verlag, Berlin
ROSS, J.H. 1973. Lauraceae: A new generic record for South Africa and a new species. Bothalia 11
VAN DER MERWE, J.J.M., VAN WYK, A.E. & KOK, P.D.F. 1988. Dahlgrenodendron, a remarkable new genus of Lauraceae from Natal and Pondoland. South African Journal of Botany 54
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