Magnified pollen of Hibiscus and other Mallow plants, beset with prickly projections.
Pollen, a pair of pollinia of a Milkweed, Asclepias, attached by stalks to a gland.
Pollinium of an Orchis (Habenaria), with its stalks attached to a sticky gland.
Two simple carpals or pistil-leaves, united at the base only, cut across both above and below.
Compound 3-carpellary pistil of common St. John's-wort, cut across: the three styles separate.
The same of shrubby St. John's-wort; the three styles as well as ovaries here united into one.
Compound 3-carpellary pistil of Tradescantia or Spiderwort; the three stigmas as well as styles and…
Pistil of a Sandwort, with vertical and transverse section of the ovary: free central placenta.
Cross section of the ovary of Frost-Weed (Helianthemum), with three parietal placenta, bearing ovules.
Cross-section of an ovary of Hypericum graveolens, the three large placenta meeting in the centre, so…
Three early stages in the growth of ovule of a Magnolia, showing the forming outer and inner coats,…
Longitudinal section of flower of Silene Pennsylvanica, showing stipe between calyx and corolla.
Flower of a Cleome of the section Gynandropsis, showing broadened receptacles to bear petals, lengthened…
One of the grains younger, seen to be a pistillate flower with calyx becoming fleshy.
A small homoterous insect, Phylloscelis Atra (var. pallescens) is not uncommon among…
This banner has floral and vine arrangements on it with two mermaids in the center of the print.
Diagram of opposite-leaved plant with a cyne of three flowers; a the first flower, of the main…
Diagram of opposite-leaved plant with a cyne of three flowers; a the first flower, of the main…
Diagram of flower of Trillium. In this, as in all such diagrams of cross-section of blossoms, the parts…
A slice of the head of flowers of a Coreopsis, with one tubular perfect flower (a) left standing on…
Diagram of a flower of Linden, showing the calyx valvate and corolla imbricate in the bud, etc.
"Scabious succisa, the primrose scabious, is a common European plant, which bears purplish-blue…
"The prunella, or self-heal, is a genus of hardy perennial, herbaceous plants belonging to the order…