Boyce, P. C. & S. Y. Wong The Araceae of Indomalaya I: Piptospatha N.E.Br.
Figure 10. Piptospatha viridistigma S.Y.Wong, P.C. Boyce & Bogner. A. Flowering plant in habitat. B. Inflorescence at late pistillate anthesis. Note the conspicuous keels in the orifice of the spathe. C. Spadix at pistillate anthesis, spathe artificially removed. D. Spadix at staminate anthesis, spathe artificially removed. Note the pollen strands; E. Infructescence at mid-maturity. Note that the persistent lower spathe is broadly funnel-form. F. Infructescence post fruit/seed dispersal (RH); and nearly mature (LH).A & F from P.C.Boyce & S.Y.Wong AR-3669; B from P.C.Boyce et al. AR-733; C & E from P.C.Boyce et al. AR-250; D from P.C.Boyce & S.Y.Wong AR-2432.