Gallery

Embryo: Oryza rufipogon; Illustration by K. Parker, Kirkbride et al. (2006)

Embryo: Paspalum scrobiculatum; Illustration by K. Parker, Kirkbride et al. (2006)

Fruit: Eichhornia crassipes; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Seeds: Eichhornia crassipes; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Seeds: Eichhornia azura; Photo by J. Scher, Federal Noxious Weed Disseminules of the US

Seeds: Eichhornia azura; Photo by J. Scher, Federal Noxious Weed Disseminules of the US

Embryo: Eichornia azurea; Illustration by K. Parker, Kirkbride et al. (2006)

Seed, embryo: Eichhornia azurea (A, seed; B, embryo in situ; C, transection of seed); Illustration by L.E. Chandler from Gunn and Ritchie (1988)

Fruit: Monochoria vaginalis; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Fruits: Monochoria vaginalis; Photo by J. Scher, Federal Noxious Weed Disseminules of the US

Seeds: Monochoria vaginalis; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Seeds: Monochoria vaginalis; Photo by J. Scher, Federal Noxious Weed Disseminules of the US

Embryo: Monochoria vaginalis; Illustration by K. Parker, Kirkbride et al. (2006)

Seed, embryo: Monochoria vaginalis (A, seed; B, embryo in situ; C, transection of seed); Illustration by L.E. Chandler from Gunn and Ritchie (1988)

Seeds: Monochoria hastata; Photo by J. Scher, Federal Noxious Weed Disseminules of the US

Seeds: Monochoria hastata; Photo by J. Scher, Federal Noxious Weed Disseminules of the US

Embryo: Monochoria hastata; Illustration by K. Parker, Kirkbride et al. (2006)

Seed, embryo: Monochoria hastata (A, seed; B, embryo in situ; C, transection of seed); Illustration by L.E. Chandler from Gunn and Ritchie (1988)

Fruit: Pontederia cordata; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Seeds: Pontederia cordata; Photo by S. Hurst, USDA-NRCS Plants Database

Seeds: Pontederia cordata; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Infructescence: Pontederia cordata; Photo by rboles, gbif.org

Seeds: Heteranthera limosa; Photo by J. Scher, Federal Noxious Weed Disseminules of the US

Fruit: Posidonia australis, with calyx; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Fruit: Posidonia australis; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Embryo: Posidonia australis; Illustration by K. Parker, Kirkbride et al. (2006)

Fruits: Posidonia australis; Photo by D. Muirhead, gbif.org

Fruits, seed: Posidonia australis, from left to right immature fruits, mature fruits, seed; Photo by A.J. Hunter, commons.wikimedia.org

Fruits: Zannichellia palustris; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Seeds: Zannichellia palustris; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)

Embryo: Zannichellia palustris; Illustration by K. Parker, Kirkbride et al. (2006)

Fruits: Potamogeton epihydrus; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)