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Volume I (1961) - Flora of New Zealand Indigenous Tracheophyta - Psilopsida, Lycopsida, Filicopsida, Gymnospermae, Dicotyledons
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Pratia Gaudich.

PRATIA Gaud., 1826

Fls 5-merous, solitary or in racemes, often unisexual; receptacle adnate to ovary, calyx-lobes persistent. Corolla oblique, split to base at back; upper lip 2-, lower 3-lobed. Staminal tube free from corolla except sts at very base. Anthers connate, lower pair awn-tipped. Ovary 2-celled, ovules ∞, stigma 2-lobed; seeds minute, us. ∞. Herbs, mostly prostrate, rooting at nodes, with alt. toothed lvs and us. acrid sap. Genus of some 20 spp. of Australia, Asia, N.Z., S. America.

Key

1
Plant erect or spreading; fls in racemes; lvs mostly not < 5 cm. long
1. physaloides
Plant creeping, rooting at nodes; fls solitary; lvs mostly not. >2 cm. long
2
2
Corolla-tube long, ± dilated near base; If-lamina thick, fleshy
5. macrodon
Corolla-tube short, not dilated near base; lf-lamina thin, membr. or nearly so
3
3
Laminae mostly 15-25 × 10-15 mm.; margins bluntly sinuate-dentate; peduncles < or little > lvs
2. arenaria
Laminae mostly not up to 15 × 15 mm.; margins rather abruptly to coarsely toothed; peduncles us. distinctly > lvs
4
4
Laminae 4-15 × 4-15 mm., ± orbicular, ± shallowly toothed
3. angulata
Laminae not > 10 × 5 mm.; ± oblong, ± deeply toothed
4. perpusilla
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