August W. Eichler

Trochodendraceae is the only family of flowering plants in the order Trochodendrales. It comprises two extant genera, each with a single species along with up to five additional extinct genera and a number of extinct species. The living species are native to south east Asia. The two living species (Tetracentron sinense and Trochodendron aralioides) both have secondary xylem without vessel elements, which is quite rare in angiosperms. As the vessel-free wood suggests primitiveness, these two species have attracted much taxonomic attention.

Ctenanthe is a genus of flowering plants of the family Marantaceae described as a genus in 1884. They are evergreen perennials, native to Central and South America (primarily Brazil). They are grown for their attractive, often variegated foliage. They are frost tender, requiring a minimum temperature of 13 °C (55 °F).

Tsuga dumosa, commonly called the Himalayan hemlock or in Chinese, Yunnan tieshan (simplified Chinese: 云南铁杉; traditional Chinese: 雲南鐵杉; pinyin: Yúnnán tiěshān), is a species of conifer native to the eastern Himalayas. It occurs in parts of Nepal, India, Bhutan, Myanmar, Vietnam and Tibet. Within its native range the tree is used for construction as well as for furniture. In Europe and North America, it is occasionally encountered as an ornamental species and was first brought to the United Kingdom in 1838.

Dioon spinulosum, giant dioon or spiny dioon, is a cycad endemic to limestone cliffs and rocky hillsides in the tropical rainforests of Veracruz and Oaxaca, Mexico. It is one of the tallest cycads in the world, growing to 16 meters in height. The tree is found at low elevations to 300 meters above sea level. Dioon spinulosum prefers well-drained soil with regular water. It will grow in soils containing few nutrients, in soils rich in limestone, and on slopes.

Terminalia acuminata is a tree species in the Combretaceae family. It was endemic to the Atlantic Forest in Brazil. The species was believed to be extinct in the wild from habitat loss, entering the IUCN Red List in 1998, with two individuals remaining in the Rio de Janeiro Botanical Garden. In May 2016, it was reported that T. acuminata specimens have been discovered in the Serra da Tiririca State Park in Itacoatiara, Niterói; in the Mendanha State Park, in Nova Iguaçu; in the Tijuca National Park, and in the Municipal Natural Park of the City, in Gávea, in the city of Rio de Janeiro.

Bdallophytum is a genus of parasitic flowering plants with five described species. It parasitizes on the roots of plants of the genus Bursera, such as Bursera simaruba. The genus is endemic to the Neotropics. It was previously placed in Rafflesiaceae, but is now placed in family Cytinaceae, together with the only other genus Cytinus. Some Bdallophytum species were at one time considered to belong to this latter genus. Bdallophytum is dioecious.

Encephalartos septentrionalis, the Nile cycad, is a species of cycad in South Sudan, northern Uganda, northern Democratic Republic of the Congo (in the Okapi Faunal Reserve), and the interior of the Central African Republic.

Saranthe is a genus of plants native to Brazil and Paraguay, described as a genus in 1861. Species

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Casearia lasiophylla is a species of flowering plant in the family Salicaceae. It is endemic to Brazil.

Zamia poeppigiana is a species of plant in the Zamiaceae family. It is found in Colombia, Ecuador, and Peru. It is threatened by habitat loss.

Oryctanthus is a genus of flowering plants belonging to the family Loranthaceae. Its native range is Mexico to Tropical America. Species: Oryctanthus alveolatus (Kunth) Kuijt Oryctanthus asplundii Kuijt Oryctanthus callicarpus Kuijt Oryctanthus cordifolius (C.Presl) Urb. Oryctanthus costulatus Rizzini Oryctanthus florulentus (Rich.) Tiegh. Oryctanthus grammatus Kuijt Oryctanthus grandis Kuijt Oryctanthus guianensis Kuijt Oryctanthus minor Kuijt Oryctanthus neurophyllus Kuijt Oryctanthus occidentalis (L.) Eichler Oryctanthus ovalifolius (Ruiz & Pav.) J.F.Macbr. Oryctanthus pedunculatus (Kuijt)

Disciphania is a genus of flowering plants belonging to the family Menispermaceae. Its native range is Mexico, Central and southern Tropical America. Species:

Dendrophthora, the tree destroyers, is a genus of flowering plants in the sandalwood family Santalaceae, native to tropical and subtropical Latin America and the Caribbean. They are hemiparasitic mistletoes that grow on a wide variety of host plants.

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Xylosma ciliatifolia, colloquially known as espinho-de-judeu, is a species of flowering plant in the family Salicaceae. It is native to South America.

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Morisonia peruviana is a species of flowering plant in the family Capparaceae. It is native to Peru.

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Phoradendron bolleanum, commonly called Bollean mistletoe, is a species of plant in the sandalwood family that is native to the desert southwest, California and southern Oregon in the United States and Mexico. It is a hemiparasite found on trees in the genera Juniperus and Arbutus.

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