Plants named in 1844

Sclerocarya birrea (Ancient Greek: σκληρός ⟨sklērós⟩, meaning "hard", and κάρυον ⟨káryon⟩, "nut", in reference to the stone inside the fleshy fruit), commonly known as the marula, is a medium-sized deciduous fruit-bearing tree, indigenous to the miombo woodlands of Southern Africa, the Sudano-Sahelian range of West Africa, the savanna woodlands of East Africa and Madagascar.

Tanacetum parthenium, known as feverfew, is a flowering plant in the daisy family, Asteraceae. It may be grown as an ornament, and may be identified by its synonyms, Chrysanthemum parthenium and Pyrethrum parthenium. Having its origin in the Balkans region, it is now distributed worldwide. Although long used in traditional medicine, there is no clinical evidence that it has any therapeutic effects.

Pithecellobium dulce, commonly known as Manila tamarind, Madras thorn, monkeypod tree or camachile, is a species of flowering plant in the pea family, Fabaceae, that is native to the Pacific Coast and adjacent highlands of Mexico, Central America, and northern South America. It is also sometimes known as monkeypod, but that name is also used for several other plants, including Samanea saman. It is an introduced species and extensively naturalized in the Caribbean and Florida, as well as the Philippines and Guam via the Manila galleons. It has also been introduced to Cambodia, Thailand and

Picea orientalis, commonly known as the Oriental spruce or Caucasian spruce, is a species of spruce native to the Caucasus and adjacent northeast Turkey.

Diospyros blancoi, (synonym Diospyros discolor), commonly known as velvet apple, velvet persimmon, kamagong, or mabolo tree, is a tree of the genus Diospyros of ebony trees and persimmons. It produces edible fruit with a fine, velvety, reddish-brown fur-like covering. The fruit has a soft, creamy, pink flesh, with a taste and aroma comparable to peaches. It is widely distributed and native to the Philippines, but it is also native to eastern and southern Taiwan. It has also been introduced to other parts of Southeast Asia, the Pacific Islands, South Asia, the Caribbean, Florida, and other

Albizia lebbeck is a species of plant in the family Fabaceae, native to the Indian subcontinent and Myanmar. It is widely cultivated and naturalised in other tropical and subtropical regions, including Australia. Common names in English include siris, Indian siris, East Indian walnut, Broome raintree, lebbeck, lebbek tree, frywood, koko and woman's tongue tree. The latter name is a play on the sound the seeds make as they rattle inside the pods. Siris is also a common name of the genus Albizia.

Blechnaceae is a family of ferns in the order Polypodiales, with a cosmopolitan distribution. Its status as a family and the number of genera included have both varied considerably. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family has 24 genera, and excludes genera placed in the separate family Onocleaceae. The family is divided into three subfamilies, including Blechnoideae s.s. Alternatively, the entire family may be treated as the subfamily Blechnoideae s.l. of a very broadly defined family Aspleniaceae, and include genera others place in Onocleaceae.

Tripleurospermum is a genus in the chamomile tribe within the sunflower family. Mayweed is a common name for plants in this genus. Most of the species are from Europe and temperate Asia although a few are from North America and North Africa. The species are placed in Matricaria by some authors. Plants typically have lobed leaves that are composed of one to three opposite pairs cut almost to the leaf mid rib: they have indehiscent one-celled fruits that have 3-ribs and two resinous glands at the base, Matricaria species are distinguished from these species by lacking fruits with 3-ribs and the

Thujopsis is a genus of conifers in the cypress family (Cupressaceae), the sole member of which is Thujopsis dolabrata. It is endemic to Japan, where it is known as asunaro (あすなろ). It is similar to the closely related genus Thuja (arborvitae), differing in its broader, thicker leaves and cones.

Wolffia is a genus of aquatic plants with a cosmopolitan distribution. They include the smallest flowering plants on Earth. Commonly called watermeal or rootless duckweed, these aquatic plants resemble specks of cornmeal floating on the water. They often float together in pairs or form floating mats with related plants, such as Lemna and Spirodela species.

Tanacetum cinerariifolium is a species of flowering plant in the aster family, Asteraceae, and formerly part of the genus Pyrethrum, but now placed in the genus Chrysanthemum, or the genus Tanacetum by some biologists. It is called the Dalmatian chrysanthemum or Dalmatian pyrethrum, denoting its origin in western coastal Balkan Peninsula, where it ranges from Dalmatia to Albania. It looks more like the common daisy than other pyrethrums do. Its flowers, typically white with yellow centers, grow from numerous fairly rigid stems. Plants have blue-green leaves and grow to 45 to 100 cm (18 to 39

Tripleurospermum inodorum, common names scentless false mayweed, scentless mayweed, scentless chamomile, and Baldr's brow, is the type species of Tripleurospermum. This plant is native to Eurasia, and introduced to North America, where it is commonly found in fields, fallow land and gardens.

Gymnocalycium, commonly called chin cactus, is a genus of about 70 South American species of cactus. The genus name Gymnocalycium (from Greek, "naked calyx") refers to the flower buds bearing no hair or spines. In a 2023 classification of the tribe Cereeae, it was placed as the only genus in the subtribe Gymnocalyciinae, having formerly been placed in the subtribe Rebutiinae.

Carissa macrocarpa is a shrub native to tropical and southern Africa. It is commonly known as the Natal plum, amathungulu, big num-num or large num-num. Carissa macrocarpa deals well with salt-laden winds, making it a good choice for coastal areas. It is commonly found in the coastal bush of the Eastern Cape and Natal. It produces shiny, deep green leaves and snowy white flowers whose perfumed scent intensifies at night. Like other Carissa species, C. macrocarpa is a spiny, evergreen shrub containing latex. They bloom for months at a time. The ornamental plump, round, crimson fruit appears in

Berberis darwinii, Darwin's barberry, is a species of flowering plant in the family Berberidaceae. It is native to southern Chile and Argentina and naturalized elsewhere. Regional vernacular names include michay, calafate, and quelung. Growing to 3–4 m (9.8–13.1 ft) tall, it is an evergreen thorny shrub.

Argyranthemum frutescens, known as Paris daisy, marguerite or marguerite daisy, is a perennial plant known for its flowers. It is native to the Canary Islands (part of Spain). Hybrids derived from this species (garden marguerites) are widely cultivated as ornamental plants in private gardens and public parks in many countries, and have naturalized in Italy and southern California. There are many cultivars, but the most common has white petals.

Sideroxylon grandiflorum, also known as the tambalacoque or dodo tree, is a long-lived species of tree in the sapote family Sapotaceae. It is endemic to Mauritius.

Pentas is a genus of flowering plants in the family Rubiaceae. The genus is found in tropical and southern Africa, the Comoros, Madagascar, and the Arabian Peninsula. The plants have hairy green leaves and clusters of flowers in shades of red, white, pink, and purple. Pentas are attractive to butterflies and hummingbirds. Some species are commonly cultivated and can be grown in pots and baskets. Species such as Pentas lanceolata can withstand full sunlight and need little to no care, growing even in locations that are dry and hot.

Ligustrum ovalifolium, also known as Korean privet, California privet, garden privet, and oval-leaved privet, is a species of flowering plant in the olive family Oleaceae. The species is native to Japan and Korea.

Eucalyptus gunnii, commonly known as cider gum, is a species of flowering plant in the family Myrtaceae. It is a small to medium-sized tree with mostly smooth bark, lance-shaped to egg-shaped adult leaves, flower buds in groups of three, white flowers and cylindrical to barrel-shaped fruit.

Calystegia silvatica (large bindweed) is the largest species of bindweed and is a strong rampant climber. It is native to southern Europe but has been introduced to many other areas because it is an attractive garden plant. Calystegia silvatica subsp. fraterniflora (Mack. & Bush) Brummitt (short-stalked false bindweed) is native to North America. It has large, arrow-shaped leaves and showy white trumpet-shaped flowers up to 9 centimeters in diameter. It is considered a weed in some areas where it has escaped cultivation and now grows wild. It spreads easily via hardy rhizomes. There are

Hoodia (; known locally as "ghaap" or "bobbejaanghaap") is a genus of flowering plants in the family Apocynaceae, under the subfamily Asclepiadoideae, native to Southern Africa. One species of Hoodia in particular, Hoodia gordonii, has achieved a degree of fame and controversy, after being investigated for use as a possible appetite suppressant.

Diospyros mespiliformis, the jackalberry (also known as African ebony and by its Afrikaans name jakkalsbessie), is a large dioecious evergreen tree found mostly in the savannas of Africa. Jackals are fond of the fruit, hence the common names. It is a member of the family Ebenaceae, and is related to the true ebony (D. ebenum) and edible persimmon (D. kaki).

Arum cylindraceum is a woodland plant species of the family Araceae. It is found in most of Europe except the UK, Russia, Ukraine, Belarus, the Baltic States and Scandinavia (although it is found in Denmark), and in Turkey. It is also missing in northwestern France and southern Italy.

Sclerocarya is a genus of plants in the family Anacardiaceae. There are two species: Sclerocarya birrea (A.Rich.) Hochst. — sub-Saharan Africa, Madagascar S. birrea subsp. afra (Sond.) Kokwaro S. birrea subsp. multifoliolata (Engl.) Kokwaro S. birrea subsp. birrea Sclerocarya gillettii Kokwaro — eastern Kenya

The Hypocreaceae are a family within the class Sordariomycetes. Species are recognisable by their brightly coloured perithecial ascomata, typically yellow, orange or red. The family was proposed by Giuseppe De Notaris in 1844. According to the Dictionary of the Fungi (10th edition, 2008), the family has 22 genera and 454 species. In 2020, it was re-analysed and determined to have only 17 genera and about 658 species.

Tanacetum corymbosum is a species of flowering plant belonging to the family Asteraceae. Its native range is Europe to Western Siberia and Turkey.

Hoodia gordonii, also known as Bushman's hat, is a leafless spiny succulent plant claimed to have therapeutic properties in folk medicine. It grows naturally in Botswana, South Africa and Namibia. The species became internationally known and threatened by collectors, after a marketing campaign falsely claimed that it was an appetite suppressant for weight loss. The flowers smell like rotten meat and are pollinated mainly by flies. The indigenous San people of the Namib desert call this plant ǁhoba (pronounced [kǁʰɔbɑ] – the initial sound is a lateral click).

Eugeissona is a clustering genus of flowering plant in the palm family native to Borneo, Thailand and Malaysia. The six monoecious species provide a wide range of local uses and are commonly called bertam or wild Bornean sago. The genus is the sole representative of the Eugeissoninae having very few obvious relatives; the hermaphrodite and staminate flowers are also found in Metroxylon, however the other specialized characteristics are unique suggesting an early split and differentiation from other members of the Calameae. Fossilized pollen belonging to these plants has been recovered in the

Echium pininana, commonly known as the tree echium, pine echium, giant viper's-bugloss, or tower of jewels, is a species of flowering plant in the borage family Boraginaceae. It is endemic to the Canary Islands, where it is restricted to the island of La Palma. Echium pininana is an endangered species, and is listed in Appendix I to, and is therefore protected under, the Convention on the Conservation of European Wildlife and Natural Habitats. The specific epithet pininana is Latin for "small pine", though E. pininana is neither closely related to the pine, nor does it resemble that plant.