@hgpennington

I’ve added a new landing page to my website: www.hgpenningtonart....

Visitors were landing on one collection (like Plants & Pathogens 2023) and missing the rest. The new page makes it easier to explore all the art collections.

The painting shows an orange branch, with 10 leaves, three twigs and one underripe green orange. The leaves and fruit have chlorotic pale yellow lesions, while the mature lesions on the leaves and lesions on the fruit contain brown necrotic (dead) regions.

In 2023 I painted citrus leprosis on orange, caused by the either citrus leprosis virus nuclear type (CiLV-N), or citrus leprosis virus cytoplasmic type (CiLV-C).

www.hgpenningtonart....

The painting shows a tomato seedling, with a bulbous irregular tumour at the base. The seedling is painted green, whereas the tumour is painted yellow, green and brown in an attempt to depict its irregular structure.

In 2022 I painted tomato crown gall, caused by the bacterium Agrobacterium tumefaciens.

www.hgpenningtonart....

Snack Time - Macaroon and Matcha Latte

In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan.

A macaroon and a matcha matte

hgpenningtonart.com/...

I drew Edward Road Baptist Church in Birmingham, England, by hand and captured my biro strokes digitally. Here's more about the process:
hgpenningtonart.co.uk/other/ink-to...

The painting shows a red campion flower cluster with two open pink flowers, two partially open buds and several smaller closed buds and protective leaves. The fungus has coated the anthers with dark brown fungal spores.

In 2023 I painted Microbotryum anther smut, caused by the fungi within the genus Microbotryum (formerly Ustilago).

www.hgpenningtonart....

an ink painting/drawing of rice blast, caused by the fungus Magnaporthe oryzae (syn Magnaporthe grisea).

In 2022 I painted rice blast, caused by the fungus Magnaporthe oryzae (syn Magnaporthe grisea).

www.hgpenningtonart....

The painting depicts a single aecidium on a barberry leaf, with chains of pink aecidiospores. Below the aecidium, there is a mass of hyphae amongst the host cells.

In 2025 I illustrated Puccinia graminis aecidium, with aecidiospores, on a barberry leaf.

hgpenningtonart.com/...

This painting won the “Magnified” category for the Art in Phytopathology 2025 contest 😊

Reclining Tree, Kyōto Imperial Palace Gardens: an incredible tree that had been trained into a reclining posture, with its trunk running parallel to the ground.

In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan.

Reclining Tree

hgpenningtonart.com/...

I drew Llanthony Priory by hand and captured my biro strokes digitally. Here's more about the process: hgpenningtonart.co.uk/other/ink-to...

The painting shows a trifoliate soybean leaf covered in small reddish-brown spots. Some regions of the leaf show yellow discolouration.

In 2023 I painted soybean rust, caused by the fungi Phakopsora pachyrhizi or Phakopsora meibomiae.

www.hgpenningtonart....

The painting shows a compound horse chestnut leaf. There are elongated, yellow, pale patches on the leaf, areas of which have begun to turn brown.

In 2022 I painted horse chestnut leaf miner (Cameraria ohridella).

www.hgpenningtonart....

Komainu near near Fushimi Inari Taisha Shrine: komainu (lion-dog guardians) at the entrance to a shrine.

In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan.

Komainu

hgpenningtonart.com/...

The painting features a red double camellia flower with distinctive white mottling, characteristic of the virus. A nearby flower bud shows a similar pattern. Most of the surrounding green leaves display yellow chlorotic mottling, highlighting the foliage symptoms caused by the infection.

I painted Camellia yellow mottle virus symptoms for the February illustration of the BSPP 2024 plant pathogens calendar.

bspp.org.uk/product/...

hgpenningtonart.com/...

Illustration of an onion plant infected with Ditylenchus dipsaci, showing the whole plant with roots and leaves, a horizontal cross-section of the bulb with concentric rings, and a vertical section showing internal tissue damage.

Illustration of Ditylenchus dipsaci on onion, showing foliar distortion and bulb damage in cross-section.
This is the first of twelve nematode illustrations planned for 2026, a little later than intended.

See more plant pathology illustrations: hgpenningtonart.com/...

I passed my JLPT N5 (Japanese Language Proficiency Test level N5)! 🎉It was close, but I made it!!!

Close-up of yellow-green lichen growing on a stone ledge beside the River Thames, with the blurred outline of the Houses of Parliament and several boats in the background on a cloudy day.

Lovely lichen

The painting shows a trifoliate soybean leaf covered in small round light grey-brown lesions. Each lesion has a dark brown ring at its outer border. In some areas the lesions have fused into necrotic patches.

In 2023 I painted frogeye leaf spot disease of soybean, caused by the fungus Cercospora sojina.

www.hgpenningtonart....

The painting shows a pseudoflower, with a green rosette of normal leaves at the base, an elongated stem, and yellow leaves at the tip.

The painting shows a single leaf, covered in small cups known as spermatogonia.

In 2022 I painted a false flower, formed due to the parasitic fungus Puccinia monoica parasitizing mustard.

hgpenningtonart.co.u...

Thanks 😊

giant bamboo, drawn in black biro on white watercolour paper

In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan.

Giant bamboo

hgpenningtonart.com/...

A colored pencil illustration of St. John’s Wort, showing the red-green veined leaves and yellow flowers with surrounding buds.

I drew a colored pencil illustration of St. John’s Wort (Hypericum calycinum), focusing on the leaves’ veining and the shape of the yellow flowers 🪷

hgpenningtonart.com/...

The painting shows a yellow corn cob, with a green opened husk. Dark grey mushroom-like galls have emerged from the cob.

In 2022 I painted corn smut, caused by the fungus Ustilago maydis.

hgpenningtonart.co.u...

The painting shows a sugarcane plant with seven green leaves, and a red blush on the lower stem. From the top of the plant emerges a long, dark brown whip-like structure known as the "smut whip". This whip has emerged from the meristem in place of a spindle leaf.

In 2023 I painted sugarcane whip smut, caused by the fungus Sporisorium scitamineum (synonym Ustilago scitaminea).

hgpenningtonart.co.u...

Shrimp and octopus tentacle skewers on a polystyrene tray, drawn in black biro on white watercolour paper

In 2023 I challenged myself to complete one drawing each day whilst on holiday in Japan.

Snacks!

hgpenningtonart.com/...

Mixed media drawing of a suburban street at sunrise, with golden light reflected on the wet road, cars on their morning journey, and trees and houses silhouetted against a bright sky

I drew a sunrise, based on a photograph taken by my niece on her way to school

hgpenningtonart.com/...

A photograph of mixed yellow and white lichen on the bark of a black locust tree (Robinia pseudoacacia)

Lichen on the bark of a black locust tree (Robinia pseudoacacia)

The painting shows a yellow corn cob, with a green opened husk. Dark grey mushroom-like galls have emerged from the cob.

In 2022 I painted corn smut, caused by the fungus Ustilago maydis.

hgpenningtonart.co.u...

The painting shows both the adaxial (upper) and abaxial (lower) faces of a peanut leaf placed side-by-side. . Peanut leaves are compound, with four leaflets arranged in two pairs along the stem. Early leaf spot lesions appear as dark brown on the upper surface, surrounded by a yellowish-green halo, and a lighter brown on the lower surface. In contrast, late leaf spot lesions appear as brown on the upper surface and black on the lower surface.

In 2023 I illustrated two related diseases: early leaf spot of peanut, caused by the fungus Cercospora arachidicola and late lead spot of peanut, caused by the fungus Cercospora personata (synonym Phaeoisariopsis personata).

hgpenningtonart.co.u...

thank you 🙂