Coccinia

Wight & Arnott

Prodr. Fl. Ind. Orient. 1: 347. 1834.

Common names: Ivy gourd
Introduced
Etymology: Latin coccineus, scarlet, alluding to mature fruit of C. grandis
Treatment appears in FNA Volume 6. Treatment on page 44. Mentioned on page 3, 6, 33.

Plants perennial, dioecious, climbing or trailing; stems annual, glabrous or glabrate [flocculent-arachnoid]; roots tuberous; tendrils unbranched [2-branched]. Leaves: blade broadly ovate to rounded-cordate, subreniform, or deltate, unlobed or palmately 5-angular or -lobed, lobes deltate or triangular to broadly angular-elliptic, margins denticulate, adaxial surface with circular, sessile scales [hirsute to hirsutulous], often with glands on both sides of midrib near petiole. Inflorescences: staminate flowers solitary, [clustered, racemose, or in spikes], axillary; pistillate flowers solitary, axillary [racemose]; bracts absent. Flowers: hypanthium campanulate to turbinate; sepals 5, linear to subulate; petals 5, connate 1/2 length, bright white, often slightly green-veined [brownish yellow or orange], ovate to ovate-triangular, [8–]15–20[–62] mm, hirtellous or puberulent-hirtellous to glabrate, corolla campanulate. Staminate flowers: stamens 3; filaments inserted near hypanthium base, connate; thecae connate into central column and forming central oblong body, sigmoid-triplicate, connective broadened; pistillodes absent. Pistillate flowers: ovary 3-locular, ovoid to fusiform; ovules ca. 15–40 per locule; style 1, narrowly columnar; stigma 1, 3-lobed; staminodes 3. Fruits pepos, usually green with white streaks or lines, sometimes red to scarlet at maturity, broadly cylindric to ellipsoid-cylindric, smooth, glabrous, indehiscent, flesh whitish to greenish. Seeds 30–50[–120], asymmetrically pyriform [ovoid or broadly ellipsoid], compressed, arillate, margins thickened or not bordered, surface fibrillose. x = 12.

Distribution

Introduced; s, se Asia (India, Malaysia), Africa, introduced also in Pacific Islands.

Discussion

Species ca. 30 (1 in the flora).

Selected References

None.

Lower Taxa