Taxon	Illustrator ⠉
	Tripterocalyx crux-maltae Pisonia aculeata Guapira discolor	Bee F. Gunn Bee F. Gunn Bee F. Gunn

Trees or shrubs, perennial, from tuberous taproot. Stems erect, divaricately branching, unarmed, internodes without glutinous bands, glabrate (short-pubescent). Leaves petiolate; blade broadly lanceolate to obovate, thin, margins entire. Inflorescences in axils of leaves, compound cymose, loose, each flower subtended by 2–3 bracts. Flowers unisexual, (plants dioecious), chamogamous, narrow; staminate perianth 5-toothed, tubular to narrowly campanulate, limb not reflexed at maturity, stamens 5–10, exceeding perianth; pistillate perianth 5-toothed, tubular, closing over ovary, styles slender, barely exserted, stigmas tipped by fine hairs. Fruits bright-orange-red, becoming weakly 10-ribbed upon drying, obovoid to globose, fleshy, glandless.

Distribution

Neotropics

Discussion

Species 10–50 (2 in the flora).

The genus is closely allied with Neea Ruiz & Pavón, another dioecious, fleshy-fruited, shrubby member of the Nyctaginaceae restricted to the Neotropics.

See E. L. Little Jr. (1968) for additional synonymy.

Selected References

None.

Lower Taxa

Guapira discolor, Guapira obtusata

Key

1	Leaf blades coriaceous, rigid when dry; young twigs, buds, and inflorescences glabrate or sparsely reddish pubescent	Guapira discolor
1	Leaf blades fleshy-chartaceous, thin and ± papery when dry; young twigs, buds, and inflo- rescences densely reddish pubescent	Guapira obtusata

"thin" is not a number."fine" is not a number.