Alan Reid Smith

Serpocaulon is a genus of ferns in the family Polypodiaceae, subfamily Polypodioideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The genus is native to Northern and Southern America.

Lomariocycas aurata (syn. Blechnum auratum) is a tree fern in the family Blechnaceae and found in montane rainforests and cloud forests from Costa Rica to Bolivia. The trunk, about 15 cm (5.9 in) thick, stands up to 2 m (6 ft 7 in) height. The once-pinnate fronds are about 1 m (3 ft 3 in) long.

Lellingeria is a genus of ferns in the family Polypodiaceae, subfamily Grammitidoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). About 50–70 species of Lellingeria are known. They are native to tropical areas of Madagascar, Africa, the Americas, and Pacific Islands. None are known in cultivation. Lellingeria was named for the American pteridologist David Lellinger.

Polypodium calirhiza is a species of fern in the polypody family. Its common names include nested polypody and habit polypody. It is found in California and Oregon in the U.S., and several states of Mexico: Colima, Jalisco, Mexico State, Oaxaca, and Veracruz. The leaflets on each leaf are broad and oval-shaped, coming to a dull point. This fern is sometimes epiphytic. The name of this species is a conflation of Polypodium californicum and Polypodium glycyrrhiza, because this species arose as a hybrid between those two species. It was not recognized as a separate species until 1991. In the

Pakau pennigera, commonly known as lime fern, gully fern, feather fern and piupiu, is a small fern found in south eastern Australia and New Zealand. It grows along streams, and is also seen in areas of open forest. This fern is found in Tasmania, Victoria and New Zealand. There is a record of it occurring in the northern Australian state of Queensland. But there is not a reliable record of it occurring in New South Wales, which is south of Queensland and north of the other locations where this plant is known to exist.

Melpomene is a genus of ferns in the family Polypodiaceae, subfamily Grammitidoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). It is native to the Neotropical realm in the Americas and Africa. The genus name of Melpomene is named after Melpomene, the Greek mythology being, the muse of chorus, who eventually became the muse of tragedy. The genus was circumscribed by Alan Reid Smith and Robbin C. Moran in Novon Vol.2 (Issue 4) on page 426 in 1992.

Asplenium arcanum is a fern known from western Mexico and Nicaragua.

Terpsichore is a genus of ferns in the family Polypodiaceae, subfamily Grammitidoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). It is native to the Neotropical realm in the Americas.

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Serpocaulon latissimum is a species of fern in the family Polypodiaceae. It is endemic to Ecuador. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss.

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Melpomene brevipes is an extremely rare and possibly extinct species of fern in the family Polypodiaceae. It is endemic to Ecuador. Its natural habitat is subtropical or tropical moist montane forests. It is threatened by habitat loss. It is estimated that there are less than 5 ferns, if they still exist.

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Lomariocycas is a genus of ferns in the family Blechnaceae, subfamily Blechnoideae, according to the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The genus is accepted in a 2016 classification of the family Blechnaceae, but other sources sink it into a very broadly defined Blechnum, equivalent to the whole of the PPG I subfamily.

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Serpocaulon sessilifolium is a species of fern in the family Polypodiaceae. It is native to Costa Rica and northern and western South America (Colombia, Venezuela, Ecuador, Peru, Bolivia and Guyana). Under the synonym Polypodium rimbachii, it was regarded as endemic to Ecuador and threatened by habitat loss.

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Serpocaulon lasiopus is a species of fern in the family Polypodiaceae. It is widespread in South America. Under the synonym Polypodium argyrolepis, it was regarded as endemic to Ecuador and threatened by habitat loss.

Serpocaulon fraxinifolium is a species of fern in the family Polypodiaceae. It is native to Mexico, Central and South America. Under the synonym Polypodium scutulatum , it was regarded as endemic to Ecuador and threatened by habitat loss.

Serpocaulon eleutherophlebium is a species of fern in the family Polypodiaceae. It is native to Costa Rica, Panama, Colombia, Ecuador and Venezuela. Under the synonym Polypodium mindense, it was regarded as endemic to Ecuador.

Selaginella gigantea (family Selaginellaceae) is a spikemoss endemic to the montane rainforests of Venezuela, at an altitude of around 750 metres (2,460 ft). It is noteworthy in being the only Selaginella species which is a true shrub, being up to 6.5 feet (2.0 m) in height and about half as wide. The leaves do not exceed 0.2 inches (0.51 cm) in length by 1⁄18 inch (1.4 mm) in width. Strobili are up to 2 centimetres (0.79 in) long by up to 1⁄12 inch (2.1 mm) in width.

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