anatomy

Knopper gall Andricus quercuscalicis on English Pendunculate or Common Oak Quercus robur.   Illustrations shows  mature gall, formed from acorn embryonic tissue thanks to the gall wasp

Knopper gall Andricus quercuscalicis and Oak apple gall Cynips quercusfollii on English Pendunculate or Common Oak Quercus robur

Medlar Mepsilus germanica with edible fruit, and detail of one blossom

Bay tree Laurus nobilis in terracotta pot, trimmed into a sphere.

Bay Laurus nobilis sprig showing small white flowers and aromatic evergreen leaves

Christmas tree Nordmann Fir Abies nordmanniana fully decorated with a big pile of gifts underneath

Branched Bur-reed Sparganium erectum showing rhizomes, and plant with flowers and fruit.  Illustration also shows details of an individual fruit, and of a female and male flower.  

Arrowhead Sagittaria sagitarria showing underwater ribbon-like leaves and floating oval leaves.  Emergent leaves are arrow-shaped.  Illustration also shows flowers and fruit.

Broad-leaved Pondweed Potamogeton natans with detail of fruiting spike, one seed, and one flower.

Frog’s-bit Hydrocharis morsus-ranae showing plant with female flowers on the left, and one with male flowers on the right.  Illustration shows rhizomes as well as floating orbicular leaves and flowers.

Water horsetail showing two sterile stems and two fertile stems, one with leaves and one without.  Also showing cross section of the stem, and the rhizome.

Parrots Feather Myriophyllum aquaticum showing rosettes of leaves below water.  Also showing detail of the tiny flowers, and a vegetative and flowering spike.

Flowering rush Butomus umbellatus with details of individual flower, leaf cross section, stamen before and after dehiscence, and seedhead

Water plantain Alisma plantago-aquatica with details of fruit individual seed and one flower

Woodpecker skull with hyoid horns diagram, viewed in profile

Diagram showing homologous bones in the arm and wing; with bat, bird and human illustrated

pen and ink stippled diagram of a worm with detail of the spines that help earthworms move

Whorl diagram of leaf growth

Wind pollinators showing close up of individual flowers along with larger plant; dandelion, grass flower, and catkins. All use wind for pollination. Pen and ink with colour wash

Diagram of schematic tree, very simplified colour wash over pen and ink showing how the root system is as large as the tree above ground

Potato Solanum tuberosum vs Sweet potato pomoea batatas tuber diagram

Raceme diagram to show this flowering structure

Opposite leaf diagram using nettle as example

Diagram of a palmate leaf