This shows the cluster of five leaves of the White Pine, Pinus strobus, (Keeler, 1915).
This shows the cluster of two leaves of the Red Pine, Pinus resinosa, (Keeler, 1915).
This shows the cluster of three, slightly twisted leaves of the Loblolly Pine, Pinus taeda, (Keeler,…
This shows the cluster of three leaves of the Pitch Pine, Pinus rigida, (Keeler, 1915).
This shows the cluster of two leaves, bright green, of the Jersey Pine, Pinus virginiana, (Keeler, 1915).
This shows the cluster of two leaves, sometimes three of four, of the Yellow Pine, Pinus echinata, (Keeler,…
This shows the cluster of two leaves of the Gray Pine, Pinus divaricata, (Keeler, 1915).
Fruit of the flower of the Morning Glory. It has dried into a pod and is splitting into three sections.
A pome is a well-known fruit of the apple, pear and quince. It comes from a compound pistil with a coherent…
A key or key-fruit (called by Botanists a Samara) is like an akene or nut, only it is winged. This is…
The Mulberry contains masses of simple fruits belonging to different flowers, compacted together,(Gray,…
The outer coat is sometimes close and even, and fitted to the kernel, as in this Morning-glory, (Gray,…
The outer coat is extended into a thin border or wing as in this Trumpet Creeper, (Gray, 1858).
The scale bugs, or bark lice, are very injurious to trees: some of them are among the worst pests of…