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groups of Compositae, it is not too easy to discriminate between a

caducous pappus, one that is fragile and readily deciduous, and one that is definitely persistent.

Morever, some species of Vernonia and related genera of the Euvernonieae possess a pappus that is quite as fragile and as readily deciduous as that of Centratherum  (of the Ethulieae).

For the present, [[strikethrough]] and until fully mature achenes of Dipterocypsela are collected [/strikethrough]] the genus may be placed after Vernonia. It differs primarily from that genus, as from all other known vernonieae, in its truly winged achenes. Its bilabiate corollas and curiously appendaged phyllaries are additional points of distinction.

The immature state of the achenes makes a complete description of their characters impossible, Those of the 2 or 3 outer series of flowers are normally although not invariably winged as described; the very immature inner achenes show no evidence of a wing. Several instances of connation between two ovaries of the same series, and in one case even between three, were observed in the material dissected; these immature fruits were much broader than normal ones and showed 2 circles (in one case 3) of detached pappus bristles at apex.