Gunnerales

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Gunnerales
Gunnera
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Core eudicots
Order:	Gunnerales Takht. ex Reveal[1]
Families
Gunneraceae Myrothamnaceae

The Gunnerales are an

Both families contain ellagic acid. Phloem cells contain a large number of plastids and the leaves have dented borders.

The plants are

Ecology

Despite being related, the

• The Gunneraceae are a mesophilic herb (often oversized), and the hydathodes are well developed and secrete mucilage or perhaps a resinous coating.
• The Myrothamnaceae are a reviviscent shrub of arid habitats, and the hydathodes are poorly developed and secrete plant resin.

Both have flowers without perianth, but the details of pollen (e.g. Zavada and Dilcher see 1986 10, Wanntorp et al. 2004th 2004b 11 and 12) differ. In Wilkinson 2000 13 is a table of differences.

References