These plants are ¾” – 1¼” tubers in 2" rose pots  With proper culture I expect these to flower in season.
 
This strain likely originated as Alan Galloway's AGA 1326-01.
 
This species is native to central Thailand. This species as with most Amorphophallus and Arisaema species are seasonally dormant. Plants sprout from a subterranean tuber or rhizome. Plants of this strain grow 4” – 6” tall. Each tuber produces several leaves with thin petioles. The leaf blades are oval-shaped and about 1” – 2½” long. The inflorescence is produced from the naked tuber before the leaves are produced. The inflorescence is single flowered and the flower opens long before the leaves are produced. The “flower” is actually a modified inflorescence that consists of the spathe (outer ornamental part) and the spadix (internal sexual bits). The spadix is ¾” – 1” tall. The spathe that surrounds the spadix is equally long but coils under when the flower opens. The outside of the spathe is dark green veined darker green basally, and dark purple-maroon apically. The inside is dark maroon-purple to maroon-black. The flowers attract flies and carrion beetles for pollination.