Weinmannia urdanetensis

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Weinmannia urdanetensis


Shrub or tree 3-26 m high, up to 43 cm dbh, variable in form from bushy to gnarled to slender. Leaves imparipinnate with 2-19 pairs of lateral leaflets; Stipules ± orbicular or reniform, up to 0.8 by 1.1 cm. Inflorescence a pair of dyads (rarely a pair of tetrads, or 4 dyads, or 4 individual racemes), sometimes a few successive nodes flowering simultaneously; Flowers unisexual or rarely bisexual; Capsules with valves 2.5-4 by 1.5-2 mm at dehiscence; Seeds c. 1 mm long, bearing hairs all over the surface, longest at ends.


Asia-Tropical: New Guinea present; Philippines (Philippines present), Luzon present, Mindanao present
Malesia: Philippines (Luzon and Mindanao) and New Guinea.




3. Specimens from the western part of the distribution tend to have more numerous pairs of longer, narrower leaflets (Philippines and Irian Jaya; also Torricellis and Mt Hunstein but the latter are sterile). In the Central Highlands of Papua New Guinea, leaflets on fertile specimens tend to be shorter and broader, often more densely pubescent (‘W. trichophora’) and there are fewer pairs per leaf. A number of specimens from the Central Highlands have comparatively large leaflets, approaching W. pullei. 2. The breeding system is largely dioecious with some exceptions (monoecious, polygamodioecious etc.). 1 Appears to be closely related to W. pullei from New Guinea and W. clemensiae from Mt Kinabalu in Borneo, which it resembles in its branching pattern and somewhat bullate leaflets.


L.M. Perry 1949 – In: J. Arnold Arbor. 30: 160
Bernardi 1964 – In: Bot. Jahrb. Syst.: 181
Merr. 1923 – In: Enum. Philipp. Flow. Pl.: 225
Bernardi 1964 – In: Bot. Jahrb. Syst.: 181
H.C. Hopkins 1998: Adansonia: 65, 74: f. 1A-H, 3