Typhonium johnsonianum A.Hay & S.M.Taylor

Deciduous geophyte; corm cream, hemispherical, c. 1.5 cm diam., orientated on its side; foliage leaves 5 together; petiole 4 cm long, sheathing in the lower 3.5 cm; free portion of petiole c. 1.5 mm diam., channelled; sheathing portion membranous, weak, to c. 5 mm wide, subterranean; leaf blade dull light green, somewhat coriaceous, ± elliptic, the base obtuse, the tip shortly apiculate, blade of first foliage leaf much reduced, c. 1 em long, the remainder c. 3.5 cm long x 1.7 cm wide; midrib somewhat prominent at the base abaxially, elsewhere ± flush with lamina; primary lateral veins c. 3 on each side of the midrib, diverging at c. 30°, slightly impressed abaxially, slightly raised adaxially. Inflorescence terminal, arising among the leaves of which some precede and some follow it (i.e. current growth comprised of parts of each of two modules of a sympodium); peduncle equalling the sheathing portion of the petiole, c. 2.5 mm diam., faintly angled in cross-section; lower spathe white with vertical maroon stripes and a grey-maroon ring at the top, cup-shaped, abruptly constricted at the apex, c. 1.2 cm diam., keeled abaxially, faintly longitudinally ribbed; spathe limb light green outside, brownish maroon within, ± lanceolate, c. 5 cm long x 1.5 cm wide near the base, erect to slightly deflexed; spadix shorter than the spathe, 4.5 cm long, sessile; female zone c. 3 mm long; pistils acroscopic, narrowly obpyramidal, ridged longitudinally, c. 1 mm tall, stigma very prominent, dome-shaped, papillate; sterile interstice c. 1.7 em long, naked except for filiform neuter organs in the lower 3 mm, very slender; neuter organs also distributed within and immediately below the female zone, c. 7 mm long, erect and straight except for curved-over distal 1 mm; male zone 6 mm long, 3mm wide from the side, laterally compressed; male flowers not discernible as such, the zone ostensibly a mass of stamens; anthers cream, sessile, dumb-bell-shaped from above, but with the connective c. twice the height of the thecae; appendix chocolate brown, sessile, c. 5mm wide at base in lateral view, compressed, c. 2 mm wide in dorsiventral view, longitudinally ridged, rugose, tapering to a rather blunt point; infructescence unknown.