Seed of a Linden or Basswood cut through lengthwise, the parts lettered: a, the hilum or scar;…
Open 4-valved spore-case of a Selaginella, and its four large spores (macrospores).
Macrospores of Selaginella
Macrospores of Selaginella, separated.
A bright brown fern with fronds reaching between 1 foot and 1.5 feet. They are commonly found in the…
"Flowering branch of Senna (Cassia obovata). a, a pod." -Whitney, 1911
The flowers and plant of Senna alexandrina which was once known as Cassia acutifolia.
"Wild senna (Cassia marilandica)." -Gager, 1916
A member of the outermost circle of flower parts.
Also known as Ulmus serotina. A branch of a September Elm tree, native to a select few states in North…
Toothed like a saw.
This coffee service is covered with an open honey comb design. It has handles formed of wheat ears,…
"Sesamum indicum. 1. a ripe fruit; 2. one of its halves; 3. a seed; 4. a cross section of it." -Lindley,…
This lace shawl was made using a "pusher bobbin net machine". The design is made of small delicate flowers…
A shrub with leaves with expanded blades.
"Branch of Simarouba amara, with female flowers. a, a male flower; b, a female flower." -Whitney, 1911
Diagram of a simple cyme in which the axis lengthens, so as to take the form of a raceme.
A cleft or recess between two lobes.
Also known as Salix sitchensis. The branch of a Sitka Willow tree, native to northwestern North America.
These are the fruit, or samara, of Slippery Elm, Ulmus pubescens, (Keeler, 1915).
"Germinating seed of Ophiocaryon paradoxum. a. radicle; b. cauliculus; cc. cotyledons." -Lindley, 1853
"Flowering plant of sanicle (Sanicula marilandica). (a), a male flower; (b), the fruit." -Whitney, 1911
"Sapindus senegalensis. 1. an expanded flower; 2. a petal; 3. the ovaries before fertilisation; 4. a…
"Branch with fruits of Sapindus drummondi. a, a flower." -Whitney, 1911
Leaves of Solanum jasminoides, the petiole adapted for climbing.
This shows two leaves of Spanish Oak, Quercus digitata, (Keeler, 1915).
Leaf-like structure more or less enclosing a fleshy inflorescence, particularly in the Araceae.
Pertains to shape.
Of the spiderwort family (Tradescantia), clockwise from top: T. bracteata, T. pilosa, T. montana, T.…
A flower cluster with flowers sessile along a common more or less elongated axis.
"Euonymus europaeus. 1. a section of a fruit; 2. a seed enveloped in its aril; 3. a perpendicular section…
Opposite leaves of Euonymus, or Spindle-tree, showing the successive pairs crossing each other at right…
The Leaf of Akanthos Spinosus has pointed lobes terminating in spines and narrow leaves.
An image of spores.
The Ivy Spray has broad-lobed leaves.
This Ivy Spray has elliptic tapering leaves that are apparent after blooming.
This Ivy Spray has lanceolate leaves.
A hollow sac-like or tubular extension of some part of a flower.
A squirrel hiding in a tree from the rain.
Seed of a St. John's-wort, divided lengthwise; here the whole kernel is embryo.
The pollen bearing organ of the flower.
Stamen with the usual dehiscence of anther down the side of each cell.
This flower stand is decorated with leaves. It is used to display flowers.
This vase with stand is a maltese design. The stand has a simple design of leaves. The vase has a handle…
Stem of a potato plant.
Piece of thallus of a Sticta, with section, showing the immersed apothecia; the small openings of these…
The sticky portion of the pistil, usually terminal, upon which the pollen is deposited.
A wide-creeping fern with reddish-brown scales. The fronds of this fern are approximately 2 feet in…
An appendage at the base of the petiole of a leaf; normally occuring in pairs.
The evolute spiral stove tile is a painting during the German Renaissance. It is a wavelike pattern…
Longitudinal section of a young strawberry.
Section of a part of a strawberry
"In botany, a runner; a weak, creeping shoot sent out from the bottom of the stem, and rooting and forming…
Somewhat heart shaped.
Shaped like an awl.
"Drosera rotundifolia. 1. a flower; 2. a perpendicular section of the ovary; 3. a perpendicular section…
This shows the leaf of the Swamp Cottonwood, Populus heterophylla, (Keeler, 1915).
Also known as Quercus palustris. A species of red oak tree native to eastern United States.
Also known as Betula lenta. A species of birch native to eastern North America.