Calyx of Chickory.

Calyx

Calyx of Chickory.

Calyx of Sunflower.

Calyx

Calyx of Sunflower.

Calyx of Helenium.

Calyx

Calyx of Helenium.

Calyx of Dandelion, showing pappus of downy hairs.

Calyx

Calyx of Dandelion, showing pappus of downy hairs.

Calyx of Sowthistle, showing pappus of downy hairs.

Calyx

Calyx of Sowthistle, showing pappus of downy hairs.

"Pappus.--The down of seed, to waft it away." -Newman, 1850

Pappus

"Pappus.--The down of seed, to waft it away." -Newman, 1850