Pachygone Miers

Genus

Angiosperms > Ranunculales > Menispermaceae

Characteristics

Woody vines. Leaf blade usually ovate, peltate, palmately 3-5-veined. Inflorescences axillary, botryoid, racemose or narrowly paniculate. Male flowers: sepals 6-12, imbricate, outer whorl minute and bracteolelike, inner whorl large; petals 6, small, with basal inflexed auricles clasping opposite stamen; stamens 6, free, anthers corpulent, dehiscing with a transverse slit. Female flowers: sepals and petals as in male flowers; staminodes 6, shorter than petal; carpels 3, with one side swollen, ovate, glabrous, style curved outward. Drupes obovate or rotund, slightly compressed, style scar near base; endocarp bony, reniform-rounded, slightly concave on each side; condyle small, subspatulate. Seed curved; endosperm absent or scanty; cotyledons large, thick, much longer than radicle.
More
Woody climbers, without prickles. Leaves usually ± ovate, base 3–5-veined. Inflorescences axillary, subracemose, without accrescent bracts. Male flowers: sepals usually 6 in 2 whorls, sometimes 1 or 2 additional reduced outermost whorls present, imbricate; petals 6, auriculate towards base, clasping the opposite stamen; stamens 6, free. Female flowers: staminodes 6; carpels 3; style reflexed; stigma entire. Drupes without carpophore or stipe, with style-scar near base; endocarp bony, ± obovoid, subcompressed, rather smooth, laterally perforate, with a central hollow condyle around which the seed is strongly curved. Seed without endosperm; cotyledons large, thick.
Woody climbers. Leaves ± ovate, base 3-to 5-nerved. Inflorescences axillary, pseudo-racemose. Male flowers: sepals 6(-12), inner ones larger, imbricate; petals 6, auriculate towards base; stamens 6. Female flowers: sepals and petals similar to male, staminodes 6, carpels 3, glabrous, style reflexed, stigma entire. Drupe curved with style-scar near base, subcompressed-obovoid; endocarp rather smooth, with a dorsal median groove and on each lateral face a small central sublunate perforation leading to the central hollow condyle. Seed strongly curved; endosperm absent; cotyledons large, thick.
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Foliage retention deciduous
Sexuality dioecy
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Hardiness (USDA) 8-12

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