Plants named in 1988

Retrophyllum is a genus of conifers in the family Podocarpaceae. It contains five generally recognized extant species with a disjunct distribution in the Southern Hemisphere, found in Papuasia and also in South America. Retrophyllum are evergreen trees typically occurring in tropical rainforests and cloud forests.

Picea martinezii, the Martinez's spruce, or Nuevo León spruce, is a medium-sized evergreen tree growing to 25–35 m tall, and with a trunk diameter of up to 1 m. It is native to northeast Mexico, where it occurs at six localities in the Sierra Madre Oriental mountains in Nuevo León. It grows at moderate altitudes from 2150–2600 m, growing along streamsides in mountain valleys, where moisture levels in the soil are greater than the otherwise low rainfall in the area would suggest. The bark is thin and scaly, flaking off in small circular plates 5–10 cm across. The crown is conic, with widely

Nymphaea thermarum, also known as Miniature Rwandan water lily, is a species of water lily that is endemic to Rwanda. Once thought to be extinct in the wild, all wild plants were believed to be lost due to destruction of its native habitat, but it was thought to be saved from extinction when it was grown from seed at the Royal Botanic Gardens, Kew in 2009. A previously-unknown wild population was discovered in 2023.

Banksia epica is a shrub that grows on the south coast of Western Australia. A spreading bush with wedge-shaped serrated leaves and large creamy-yellow flower spikes, it grows up to 3½ metres (11½ ft) high. It is known only from two isolated populations in the remote southeast of the state, near the western edge of the Great Australian Bight. Both populations occur among coastal heath on cliff-top dunes of siliceous sand. One of the most recently described Banksia species, it was probably seen by Edward John Eyre in 1841, but was not collected until 1973, and was only recognised as a distinct

Alvimia is a Brazilian genus of bamboo in the grass family. It is native to the eastern coastal regions of the State of Bahia in eastern Brazil. Species Alvimia auriculata Soderstr. & Londoño Alvimia gracilis Soderstr. & Londoño Alvimia lancifolia Soderstr. & Londoño

Paraprenanthes is a genus of East Asian plants in the tribe Cichorieae within the family Asteraceae, most of the species found only in China. Species

The Dendrocerotaceae is the only family of hornworts in the order Dendrocerotales.

Hewittia malabarica is a flowering plant in the monotypic genus Hewittia Wight & Arn., belonging to the family Convolvulaceae and widespread throughout tropical Africa, Asia, and Polynesia. It is a climbing or prostrate perennial herb with slender stems and flowers that are pale yellow, cream, or white with a purple center, and large leaves that can be used as a cooked vegetable or used in folk medicine with the roots. The stems can be used to make ropes.

Foveolina is a genus of flowering plants in the daisy family, native to southern Africa. Species Foveolina albidiformis (Thell.) Källersjö - Cape Province Foveolina dichotoma (DC.) Källersjö - Cape Province Foveolina schinziana (Thell.) Källersjö - Namibia Foveolina tenella (DC.) Källersjö - Cape Province

Encephalartos turneri is a species of cycad that is native to Mozambique. The Encephalartos turneri was discovered by Ian Sutherland Turner in Nampula, Mozambique.

Bulbophyllum sterile is a species of orchid in the genus Bulbophyllum. The native range of this species is Nepal to Southern India and Myanmar. It is a pseudobulbous epiphyte with yellow flowers, and grows primarily in the wet tropical biome.

Banksia oligantha, commonly known as Wagin banksia, is an endangered species in the plant family Proteaceae endemic to south west Western Australia. It belongs to Banksia subg. Isostylis, a subgenus of three closely related Banksia species with dome-shaped heads as inflorescences, rather than characteristic Banksia flower spikes. A shrub or small tree up to 4 m (13 ft) high, it has prickly foliage and pink and cream flowerheads which appear in late Spring (October to December). First collected in 1984 near the wheatbelt town of Wagin, Banksia oligantha was officially described in 1987 by

Oncosiphon is a small genus of flowering plants in the daisy family (Asteraceae). All known species are native to southern Africa.

Lobelia monostachya, the one-stalked lobelia, is a species of flowering plant in the family Campanulaceae that is endemic to the island of Oʻahu in Hawaii. It inhabits cliffside mesic shrublands in the southern Koʻolau Mountains at an elevation of 44–614 m (144–2,014 ft). It was previously believed to be extinct. In 1994 it was rediscovered and only 8 individuals are currently known to exist. Associated native plants include Artemisia australis, Carex meyenii, Eragrostis spp., and Psilotum nudum. It is threatened by habitat loss.

Kinghamia is a genus of African flowering plants in the family Asteraceae. Species Kinghamia angustifolia (Benth.) C.Jeffrey Kinghamia engleriana (Muschl.) C.Jeffrey Kinghamia foliosa (O.Hoffm.) C.Jeffrey Kinghamia macrocephala (Oliv. & Hiern) C.Jeffrey Kinghamia nigritana (Benth.) C.Jeffrey

Bogoria is a genus of epiphytic orchids native to insular Southeast Asia (Borneo, Java, Sumatra, New Guinea and the Philippines). Plants of the World Online accepts 14 species of Bogoria as at September 2024: Bogoria beccarii (Rchb.f.) M.A.Clem. & D.L.Jones – P.N.G. Bogoria carinata (J.J.Sm.) M.A.Clem. & D.L.Jones – P.N.G. Bogoria godeffroyana (Rchb.f.) R.Rice – Fiji Bogoria gracile (Schltr.) M.A.Clem. & D.L.Jones – P.N.G. Bogoria laxus (Schltr.) M.A.Clem. & D.L.Jones – P.N.G. Bogoria matutina (D.L.Jones & M.A.Clem.) M.A.Clem. & D.L.Jones – Queensland Bogoria merrillii (Ames) Garay -

Euphorbia tulearensis is a species of plant in the family Euphorbiaceae. It is endemic to Madagascar. Its natural habitat is rocky areas. It is threatened by habitat loss.

Cleistocactus winteri is a succulent of the family Cactaceae. Its common name is the golden rat tail. Cleistocactus colademononis, which has gained the Royal Horticultural Society's Award of Garden Merit, is sometimes considered to be a subspecies, Cleistocactus winteri subsp. colademono.

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Asarum splendens, the Chinese wild ginger or showy Sichuan ginger, is a species of wild ginger.

Allium columbianum, the Columbian onion, is a species of onion native to eastern Washington (Pend Oreille, Spokane, Lincoln and Whitman Counties), northern Idaho (Idaho, Clearwater, Latah and Kootenai Counties), and the Bitterroot Mountains of western Montana (Ravalli and Sanders Counties). It is a perennial herb that grows on shallow, wet soils at elevations of 300–1100 m. Allium columbianum produces egg-shaped bulbs up to 15 mm long. Flowers are up to 10 mm across, pink to light purple with green midrib; anthers and pollen blue to gray. Flowers bloom May to July.

Sairocarpus is a genus of the family Plantaginaceae, and is one of a group of plants commonly known as 'snapdragons'. It has ten accepted species and is being considered to include many species formerly considered as New World species of Antirrhinum.

Psydrax odorata, known as alaheʻe in Hawaiian, is a species of flowering shrub or small tree in the coffee family, Rubiaceae. It is native to the Pacific Islands, New Guinea and Australia. The first name, Psydrax, is the definition for a bleb, while odoratus defines as a nice aroma.

Myxopappus is a genus of southern African flowering plants in the chamomile tribe within the daisy family. It is native to Namibia and the Cape Provinces of South Africa. Species Myxopappus acutilobus (DC.) Källersjö - Namibia and the Cape Provinces Myxopappus hereroensis (O.Hoffm.) Källersjö - Namibia

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Falcatifolium sleumeri is a species of conifer in the family Podocarpaceae. It is found only in a small area in the far west of Western New Guinea (Papua).

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Ceuthostoma is a genus of two species of trees, constituting part of the plant family Casuarinaceae. They grow naturally only in Malesia, in the islands of Palawan, Borneo, Halmahera and New Guinea.

Barleria observatrix is a species of plant in the family Acanthaceae. It is endemic to Mauritius. Its natural habitat is subtropical or tropical dry forests.

Aoranthe is a genus of flowering plants in the family Rubiaceae. It is found in tropical Africa.