Carl Christensen

Platycerium bifurcatum, commonly known as the elkhorn fern or staghorn fern, is a species of plant in the fern family Polypodiaceae native to Java, Bali, New Guinea, New South Wales, Queensland and Lord Howe Island.

Commiphora gileadensis, the Arabian balsam tree, is a shrub species in the family Burseraceae growing in Saudi Arabia, Yemen, southern Oman, Sudan and in southeast Egypt where it may have been introduced. Other common names for the plant include balm of Gilead and Mecca myrrh, but this is due to historical confusion between several plants and the historically important expensive perfumes and drugs obtained from them. True balm of Gilead was very rare, and appears to have been produced from the unrelated tree Pistacia lentiscus. The Commiphora gileadensis species also used to include

Lophosoria quadripinnata (J.F.Gmel.) C.Chr. is a species of fern that, according to DNA molecular analysis, belongs to the family Dicksoniaceae, where it is placed in the genus Lophosoria. It is found in the Americas spanning from Cuba and Mexico to Chile. In Chile it is present in the area between Talca and Aysén including Juan Fernández Islands. In Argentina it grows only in the humid valleys of western Neuquén and Río Negro Province. Diamondleaf fern is a common name. In Spanish it is known as 'ampe' (from the Mapudungun añpe) or palmilla, but one has to remember that there are several

Dryopteris cycadina, the shaggy shield fern or black wood fern, is a species of deciduous or semi-evergreen fern in the family Dryopteridaceae. It is native to northern India, China, Taiwan and Japan. It grows to 60 cm (24 in) tall by 45 cm (18 in) wide, and produces pale green fronds maturing to dark green, on erect rhizomes. It has gained the Royal Horticultural Society's Award of Garden Merit.

Ctenitis is a fern genus in the family Dryopteridaceae, subfamily Dryopteridoideae, in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).

Diplazium dietrichianum is a small fern occurring in eastern Australia. It occurs in shady damp places.

Asplenium listeri, commonly known as the Christmas Island spleenwort, is a species of fern in the family Aspleniaceae. It is endemic to Christmas Island, an Australian territory in the northeastern Indian Ocean. Its specific epithet honours British zoologist and plant collector Joseph Jackson Lister, who visited the island on HMS Egeria in 1887 and was the first to collect a specimen.

Tapeinidium is a genus of ferns in the family Lindsaeaceae, consisting of about 19 species. These species are native to southeastern Asia, ranging from Thailand to New Guinea, and into the western Pacific. Tapeinidium pinnatum has also been introduced into India.

Odontosoria biflora is a species of fern in the family Lindsaeaceae. As with other species in the family, it has been placed in different genera; synonyms include Sphenomeris biflora and Sphenomeris chinensis ssp. biflora. It is native to Southeast China, Korea, Japan and its offshore islands, Taiwan, and the Philippines. The fronds are leathery in texture, with the final segments being wedge-shaped. In the northern Philippines, it is described as "common", being found on ridges and rocks at elevations of up to about 150 m. Known in parts of the Philippines by the Ivatan name tubho, sun-dried

Visit the page for more details.

Dryopteris tokyoensis (Tokyo wood fern, 东京鳞毛蕨) is an erect, vase-shaped, deciduous fern native to Japan, as well as Fujian, Hubei, Hunan, Jiangxi, and Zhejiang provinces in China. These ferns grow to 90–110 cm in height, with each frond containing 20–40 pairs of shallow-lobed, lance-shaped pinnae.

Visit the page for more details.

Diplazium laffanianum, or Governor Laffan's fern, is a species of fern endemic to Bermuda. It is listed as extinct in the wild. It is named after Sir Robert Laffan who sent a living plant to the Royal Botanic Gardens, Kew, in 1880. The fern was found in the mouths of caves and rock crevices until 1905. 1905 was the last time Diplazium laffanianum was seen in the wild. In 2002, the spores were sent to the United States to propagate. After propagation, they were sent back to Bermuda from 2009 to 2019. In 2014, a re-introduction programme began using the zoo-raised ferns. As of 2021, there are

Austroblechnum durum, synonym Blechnum durum, is a species of fern in the family Blechnaceae. The fern is endemic to New Zealand.

Osmunda × mildei is a rare fern, known only from a few locations in the area of Hong Kong. It is also a rarity in that it appears to be a species of hybrid origin within the Osmundaceae. Its putative parents are Osmunda japonica and Plenasium vachellii or P. angustifolium. William Jackson Hooker published a sketch of this species in his Filices Exoticae (completed in 1859), plate 9. He designated it as Osmunda bipinnata, but his name was invalid because it had already been used by Linnaeus for another species, later reclassified as Anemia bipinnata.

Visit the page for more details.

Visit the page for more details.

Visit the page for more details.

Visit the page for more details.

Visit the page for more details.

Visit the page for more details.

Visit the page for more details.

Visit the page for more details.

Visit the page for more details.

Diplaziopsis is a genus of ferns in the family Diplaziopsidaceae. The genus name means 'like Diplazium'.

Visit the page for more details.

Visit the page for more details.

Stigmatopteris is a genus of ferns in the family Dryopteridaceae, subfamily Polybotryoideae, in the Pteridophyte Phylogeny Group classification of 2016 (PPG I).

Visit the page for more details.

Visit the page for more details.