Patrick Brownsey

Christella dentata is a small fern with widespread distribution in Australia and islands in the south Pacific Ocean. There are many local common names. In New South Wales it grows north from the southern Illawarra region and is known as binung. Found on the margins of rainforest, by streams or in more open forests with adequate moisture. Sori are circular in shape, with a hairy closed covering. It was the first species of fern to become naturalised on the Hawaiian Islands, recorded initially in Oahu in 1887 and now found on all major islands there. There it interbreeds with the local species

Pellaea calidirupium, the hot rock fern, is a fern of eastern Australia and New Zealand restricted to rocky areas in relatively arid environments. In Tasmania, where it is considered rare, it is only found on the East Coast, the Midlands, and lower slopes of the Central Plateau on dry rock faces. It is also found in Victoria and Queensland. The species was originally described from New Zealand. The fronds may be up to 50 cm long. They are sexually dimorphic with shorter sterile fronds with up to 12 pinnae. The stipe can occupy nearly half the length of the frond. Reddish brown scales and

Asplenium chathamense, also called Chatham Island spleenwort, is a species of spleenwort in the fern family Aspleniaceae. It is endemic and found near coasts on the Chatham Islands. The species was described in 1985 by Patrick Brownsey. It is categorized as "naturally uncommon" in the New Zealand Threat Classification System.

Asplenium cimmeriorum, commonly known as the cave spleenwort, is a species of small fern in the family Aspleniaceae. Endemic to New Zealand, they are only found in the western coasts, from Waitomo in the North Island, to Punakaiki in the South Island. It grows in dark environments with high rainfall, such as cave walls and ceilings, and in the South Island, on rotting logs. The species was first described by Patrick Brownsey and Peter de Lange in 1997.

Tmesipteris horomaka, commonly known as the Banks Peninsula fork fern, is a fern ally endemic to New Zealand.

Hypolepis ambigua, commonly known as pigfern, is a species of fern that grows in New Zealand.

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Telmatoblechnum serrulatum, the toothed midsorus fern, is a species of fern in the family Blechnaceae, native to Florida, southeastern Mexico, Central America, the Caribbean, northern and western South America, Brazil, Paraguay, and northeastern Argentina.

Telmatoblechnum is a genus of ferns in the family Blechnaceae, subfamily Stenochlaenoideae.

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Telmatoblechnum indicum (many synonyms including Blechnum indicum) or the swamp water fern is often seen growing on sandy soils in swampy areas. The specific epithet indicum is from Latin, revealing this plant was first collected in the East Indies (Java). Indigenous Australians used the starchy rhizome as food. This plant was collected with another swamp fern Cyclosorus interruptus by Joseph Banks and Daniel Solander at Botany Bay in 1770.

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Tmesipteris alticola is a species of fern in the family Psilotaceae. Tmesipteris alticola was formally described by Leon R. Perrie and Patrick J. Brownsey in 2023.

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Asplenium carnarvonense is a fern of the family Aspleniaceae native to Carnarvon Gorge in central Queensland.

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