Pen & Ink

Acacia Acacia nilotica tree showing typical flattened profile

Acacia sprig Acacia nilotica showing spines and paired leaflets and flower

Alder Alnus glutinosa tree

Woodpecker skull with hyoid horns diagram, viewed in profile

Woodpecker skull with hyoid horns view from above diagram

Wood sorrel Oxalis acetosela pen and ink illustration

Wintercress pen and ink line drawing with detail of an individual flower

Winter purslane Claytonia perfoliata pen and ink illustration

Wild marjoram Origanum vulgare pen and ink botanical illustration

Shaggy Ink cap Coprinus comatus pen and ink botanical illustration

Sea beet Beta maritima pen and ink botanical illustration

Scarlet Elf cap Sarcoscypha coccinea pen and ink illustration against moss

Rowan or Mountain ash Sorbus aucuparia pen and ink botanical illustration

Colour diagram of the process of transpiration, showing how plants access water from their roots and bring it up to the leaves

Three cornered leek Allium triquetrum pen and ink illustration with detail of one flower

Sweet chestnut Castanea sativa pen and ink line drawing with details of nut and prickly seed case

Sorrel Rumex acetosa pen and ink botanical illustration with detail of individual seed and distinctive leaf shape

Snowflake pen and ink line drawing of one single snowflake, based on the photograph taken through a microscope by Michael Peres

Snowflake pen and ink line drawing of one single snowflake, based on the photograph taken through a microscope by Michael Peres

Snowflake illustration line drawing based on photo through the microscope of one snowflake by Michael Peres

Snowflake illustration line drawing based on photo through the microscope of one snowflake by Michael Peres

Plum Prunus domestica line drawing with detail of half fruit and plum blossom

Pineapple weed Matricaria discoidea line drawing with detail of single disc floret