Geosiris australiensis B.Gray & Y.W.Low
Gray, B. & Low, Y.W. (2017) Candollea 72(2): 251. Type: "Australia. Queensland : N Queensland, Cook District, Little Cooper Creek, Daintree National Park, 15.I.2017, Gray, Hawkes & de Groot BG 9763 (holo- : BRI! ; iso- : CNS!)".
Plant perennial, achlorophyllous, mycoheterotrophe, 50-120 mm high, with slender, simple or rarely branched, purplish, stems arising from an underground rhizome c. 20-60 mm long with several tuber like thickened sections. Roots filiform arising from rhizome tubers.
Leaves scale-like, 3-4.5 mm long, clasping the stem, pale creamy mauve.
Inflorescence a headlike (possibly a contracted rhipidium) with 1-3 subsessile flowers opening sequentially ; floral bracts membranous, maroon. Flowers erect, actinomorphic and opening widely, c. 15-16 mm diameter, very pale mauve to white, bright orange in the throat of the perianth tube. Perianth tube 2.1-2.3 mm long. Tepals lanceolateelliptic to narrowly obovate, 6-7 × 3.5-4 mm, spreading. Stamens 3, filaments included in perianth tube, filiform, free, c. 1.8 mm long. Anthers c. 1.5 mm long, basifixed, coherent and clasping style. Ovary ovoid c. 2.1-2.2 mm long. Style erect, 4.7-4.8 mm long, fusiform above the anthers and triangular in cross section but becoming only slightly triangular at the apex and finely fringed.
Capsules not seen.
Features not available.