e-Flora of Thailand

Volume 11 > Part 2 > Year 2012 > Page 192 > Araceae > Anadendrum

3. Anadendrum griseum P.C.Boyce

Thai Forest Bull., Bot. 37: 3. 2009. Fig. 2; Plate XXXIII: B.


Accepted Name : This is currently accepted.


Description : Evergreen, medium-sized, slender to moderate lianescent secondary hemiepiphyte to 2 m. Stem (adult) root-climbing. Leaves distichous, scattered on climbing shoots but congested into loose fans at shoot tips where flowering occurs; petiole pulvinate apically, 6–10 cm; petiolar sheath extending to just below the pulvinus, margins and then whole sheath soon marcescent; leaf blade ovate-cordate to oblong, 14–20 by 9–10 cm, base truncate to weakly cordate or slightly cuneate, apex acute to acuminate, briefly apiculate, medium green when fresh, drying dull grey; primary lateral veins pinnate, 4–7 per side, running into marginal vein; interprimary veins almost obscured; higher order venation all reticulate. Inflorescence 1–6 in each floral sympodium; peduncle spreading with the spadix erect, much shorter than to exceeding the petiole of the preceding foliage leaf, 4–7 cm, each peduncle subtended by membranous, later papery cataphylls and the whole synflorescence subtended by several such cataphylls; spathe elongate-ovate, apically strongly rostrate in bud, basally contracted onto the stipe, gaping, then spreading, then reflexed at anthesis, then soon caducous, ca 3.5 by 2.5 cm, creamy green with scattered purple blotches; spadix stipitate; fertile portion 1.75–2 by 0.5 cm, greenish white at anthesis, green afterwards; stipe 0.5–0.8 cm, green; flowers ca 3 mm diam.; stamens: filaments short, broadly linear; anthers shorter than filaments; gynoecium obpyramidal, tetragonal; stylar region 2 by 3 mm, rhomboidal, truncate; stigma transverse-linear. Fruit a subglobose truncate-topped berry, green when immature, bright glossy red with black stigmatic remains when ripe.


Thailand : PENINSULAR: Songkhla (type: Wongprasert 9912-79 [BKF140328], holotype -BKF).


Distribution : Endemic.


Ecology : Damp evergreen lowland forests; ca 200 m alt.


Notes: Immediately recognizable by the usually cordate-based leaf blades and the creamy green spathe limb with purple blotches. In the fresh state leaves are glossy medium green but specimens always dry distinctively dull grey; whence the specific epithet.


Main

Figure 2
Plate XXXIII: B
Anadendrum griseum P.C.Boyce
Rachun Pooma (Betong, Yala)