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Volume IV (1988) - Flora of New Zealand Naturalised Pteridophytes, Gymnosperms, Dicotyledons
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Lavatera L.

LAVATERA L.

Annual to perennial herbs, woody shrubs or trees. Lvs toothed or lobed. Fls solitary and axillary, or in axillary clusters or terminal racemes; epicalyx segments 3, united at least in part; calyx evenly 5-toothed; petals spreading, emarginate or deeply notched. Style branches as many as loculi, filiform. Fr. of numerous, 1-seeded, indehiscent, awnless mericarps arranged in a single flat whorl round short conic apex of receptacle, separating at maturity.

Key

1
Fls axillary, solitary or in clusters of 2-8-(10), or rarely in terminal clusters; lvs crenate or serrate, all deeply or shallowly lobed
2
All fls axillary, solitary; lvs crenate, shallowly lobed, but some stem lvs or basal lvs without lobes
4
2
Epicalyx segments > calyx, enlarged and spreading at fruiting; mericarps finely transversely ribbed on back
1. *arborea
Epicalyx segments < calyx, ± unchanged at fruiting; mericarps with a single low longitudinal rib, otherwise smooth or faintly ribbed on back
3
3
Woody much-branched shrub; calyx long-tubular; petals 30-40 mm long
2. *assurgentiflora
Stout annual or biennial, often woody at base; calyx campanulate; petals (8)-10-18 mm long
3. *cretica
4
Epicalyx segments united for lower ?-1/2; mericarps ± smooth on back, not obscured by axis
4. *olbia
Epicalyx segments united for almost entire length; mericarps transverse-reticulately veined, obscured by expanded central axis
5. *trimestris

c. 45 spp., N. temperate, C. Asia, Australia. Naturalised spp. 5.

Fig. 81. Lavatera. A L. arborea, fruiting calyx with epicalyx; B L. assurgentiflora, calyx with epicalyx. © All rights reserved. [Image: 4X69]
Fig. 81. Lavatera. A L. arborea, fruiting calyx with epicalyx; B L. assurgentiflora, calyx with epicalyx. © All rights reserved. [Image: 4X69]
Fig. 82. Frs of Lavatera, with calyx removed. A L. cretica; B L. trimestris. © All rights reserved. [Image: 4X6A]
Fig. 82. Frs of Lavatera, with calyx removed. A L. cretica; B L. trimestris. © All rights reserved. [Image: 4X6A]
Fig. 83. Calyx teeth of Lavatera and Malva. A L. cretica; B M. sylvestris. © All rights reserved. [Image: 4X6B]
Fig. 83. Calyx teeth of Lavatera and Malva. A L. cretica; B M. sylvestris. © All rights reserved. [Image: 4X6B]
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