Plants named in 1928

Rhizanthella, commonly known as underground orchids, is a genus of flowering plants in the orchid family, Orchidaceae and is endemic to Australia. All are leafless, living underground in symbiosis with mycorrhizal fungi. The inflorescence is a head of flowers held at, or just above the ground but mostly covered by soil or leaf litter and little is known about the mechanism of pollination.

Puya raimondii, also known as the Queen of the Andes (English), titanka and ilakuash (Quechua) or puya de Raimondi (Spanish), is the largest species of bromeliad, its inflorescences reaching up to 15 m (50 ft) in height. It is native to the high Andes of Bolivia and Peru.

Acaciella is a Neotropical genus of flowering plants in the legume family, Fabaceae, and its subfamily Mimosoideae. Its centre of diversity is along the Mexican Pacific coast. They are unarmed, have no extrafloral nectaries and the polyads of their pollen are 8-celled. Though its numerous free stamens (sometimes >300) is typical of Acacia s.l., it has several characteristics in common with genus Piptadenia (tribe Mimoseae). Its pollen and free amino acids resemble that of Senegalia. Molecular studies place it sister to a monophyletic clade comprising elements of genus Acacia, and the tribe

Rhizanthella gardneri, commonly known as western underground orchid, is a species of flowering plant in the orchid family and is endemic to the southwest of Western Australia. It is a herb that spends its entire life cycle, including flowering, at or below the soil surface. A head of up to 100 small reddish to cream-coloured, inward facing flowers surrounded by large, cream-coloured bracts with a horizontal rhizome is produced between May and July.

Nepenthes inermis is a tropical pitcher plant endemic to the Indonesian island of Sumatra. The specific epithet inermis is Latin for "unarmed" and refers to the upper pitchers of this species, which are unique in that they completely lack a peristome.

Dendrobium aphyllum, commonly known as the hooded orchid or 兜唇石斛 (dou chun shi hu) is a species of orchid native to Bangladesh, southern China, the eastern Himalayas, and Indochina.

Triticum timopheevii, Timopheev's wheat or Zanduri wheat (from Georgian ზანდური), is a tetraploid wheat that has both cultivated and wild forms. It is believed to have evolved in isolation from the more common Triticum turgidum; hybrids between T. timopheevii and T. turgidum are reportedly sterile with "a considerable amount of chromosomal irregularities in meiosis." The wild form (formerly categorized as T. araraticum Jakubz.) can be found across south-eastern Turkey, north Iraq, west Iran and Transcaucasia - but the domesticated form is restricted to western Georgia.

Dicrocaulon is a genus of flowering plants belonging to the family Aizoaceae. Its native range is the Cape Provinces. Species: Dicrocaulon brevifolium N.E.Br. Dicrocaulon grandiflorum Ihlenf. Dicrocaulon humile N.E.Br. Dicrocaulon microstigma (L.Bolus) Ihlenf. Dicrocaulon nodosum (A.Berger) N.E.Br. Dicrocaulon ramulosum (L.Bolus) Ihlenf. Dicrocaulon spissum N.E.Br.

Nepenthes fusca , or the dusky pitcher-plant, is a tropical pitcher plant endemic to Borneo. It is found throughout a wide altitudinal range and is almost always epiphytic in nature, primarily growing in mossy forest. The specific epithet fusca is derived from the Latin word fuscus, meaning "dark brown" or "dusky", and refers to the colour of the pitchers.

Bulbophyllum frostii, commonly known as Frost's bulbophyllum or Dutchman's shoes is a species of orchid, In the wild it grows as an epiphyte, inhabiting evergreen seasonal lowland rainforests in Vietnam and more rarely in Thailand, including the Malay peninsula. It was more recently reported growing in the Yunnan province of China during a series of botanical surveys between 2017 and 2020. This plant is usually found at elevations of around 1500m above sea level.

Beckmannia syzigachne, the American sloughgrass, or slough grass, is an annual or short-lived perennial bunchgrass in the grass family, Poaceae, found in shallow marshes or sloughs. Beckmannia syzigachne is widespread across much of Europe, Asia, and North America. Beckmannia syzigachne is one of only two species in the genus Beckmannia; the other being Beckmannia eruciformis.

Stenanona is a genus of flowering plants in the family Annonaceae. There are about 14 species native to Mexico and Central and South America. The genus is found in rainforest habitat. These plants are small trees. The leaves have a coating of hairs and are borne on swollen petioles. The petals are somewhat thin but moderately fleshy in texture and are various shades of pink or red; one species has purple flowers. The petals sometimes fade whitish. The flowers are bisexual. Species include: Stenanona carrillensis Stenanona cauliflora Stenanona columbiensis Stenanona costaricensis Stenanona

Pentadiplandra brazzeana, also known as oubli, is an evergreen shrub or liana that is the only species assigned to the genus Pentadiplandra, and has been placed in a family of its own called Pentadiplandraceae. It produces large red berries, sometimes mottled with grey. It is known from West-Central Tropical Africa, between northern Angola, eastern Nigeria and western Democratic Republic of Congo. The berry is sweet in taste due to the protein, brazzein, which is substantially sweeter than saccharose. Brazzein may be useful as a low-calorie sweetener, but is not yet allowed as a food additive

Nepenthes tobaica is a tropical pitcher plant endemic to Sumatra. It is particularly abundant around Lake Toba, after which it is named. Nepenthes tobaica is closely related to N. angasanensis, N. gracilis, N. mikei, and N. reinwardtiana.

Nepenthes papuana is a tropical pitcher plant endemic to New Guinea. The specific epithet papuana is derived from Papua, an alternative name for the island.

Kalanchoe suarezensis is a species of Kalanchoe (section Bryophyllum) native to northern Madagascar. It is cultivated as an ornamental plant, but often misidentified as other species like K. gastonis-bonnieri, K. mortagei and K. poincarei. K. gastonis-bonnieri differs by more or less having brownish spots on leaves, while the leaves of K. suarezensis are spotless. K. mortagei differs by having auriculate to peltate leaves, while the leaf base of K. suarezensis is attenuate to truncate. K. poincarei is a sprawling species not known in cultivation, very different from all the species mentioned

Cerochlamys is a genus of plants in the family Aizoaceae. They are all succulent plants, with fleshy, water-storing leaves. These plants bear small, somewhat daisy-like flowers, usually in shades of pink or purple. The genus is endemic to the southern Cape Provinces of South Africa.

Carpobrotus rossii (formerly Mesembryanthemum rossii) is a succulent coastal groundcover plant of the family Aizoaceae. Native to southern Australia, it is known by various common names, including karkalla, pig face, sea fig and beach bananas. C. rossii can be confused with rounded noon-flower Disphyma crassifolium subsp. clavellatum, which has also been erroneously called "karkalla" and "beach bananas" in the Australian native food trade.

Brucea javanica, commonly known as the Macassar kernels, is a plant in the family Simaroubaceae. The specific epithet javanica is from Latin, meaning "of Java". Other common names in English include Java brucea and kosam.

Arophyton is a genus of flowering plants in the family Araceae. It consists of 7 species that are found only in northeast Madagascar. Arophyton are tuberous plants with a few rhizomatous species that go through a dormant period during the dry season.

Pseudoraphis is a genus of Asian and Australian plants in the grass family, commonly known as mudgrasses. They grow in open, wet habitat, such as marshes. Some are aquatic, floating plants. A defining characteristic is a long, stiff bristle extending from the tip of each branch of the inflorescence. Pseudoraphis is closely related to the genus Chamaeraphis. Species Pseudoraphis balansae - Hainan, Thailand, Vietnam Pseudoraphis brunoniana - Anhui, Guangdong, Taiwan, Japan, Assam, Bangladesh, Sri Lanka, Myanmar, Philippines, Thailand, Vietnam Pseudoraphis jagonis - Queensland Pseudoraphis

Nepenthes dubia is a tropical pitcher plant endemic to the Indonesian island of Sumatra, where it grows at an elevation of 1,600–2,700 m above sea level. The specific epithet dubia is the Latin word for "doubtful".

Macroptilium is a genus of flowering plants in the legume family, Fabaceae. It belongs to the subfamily Faboideae.

Dendrocacalia is a genus of flowering plants in the daisy family. There is only one known species, Dendrocacalia crepidifolia, endemic to Haha-jima (Haha Island, one of Ogasawara Islands (Bonin Islands) in the North Pacific, part of Japan).

Skiatophytum is a genus of flowering plants belonging to the family Aizoaceae. It is native to the Cape Provinces of South Africa. Three species are accepted: Skiatophytum flaccidifolium Klak Skiatophytum skiatophytoides (Leistner) Klak Skiatophytum tripolium (L.) L.Bolus

Sinojackia is a genus of five to eight species of flowering plants in the family Styracaceae, all endemic to China. The species are deciduous shrubs or small trees growing to 4–12 m tall. During a presentation on Chinese plant species at Chiba University's Dept. Of Horticulture on October 27, 2017, botanist Mikinori Ogisu informed the audience that less than 20 Sinojackia sarcocarpa remain in the wild. He also said he had walked in the mountains with a local and found the species. Species Sinojackia dolichocarpa C.J.Qi Sinojackia henryi (Dummer) Merrill Sinojackia huangmeiensis J.W.Ge &

Nepenthes tomoriana (; after Tomori Bay, from which the type originates) is a species of pitcher plant endemic to Sulawesi, where it grows at an elevation of 0–500 m above sea level.

Nepenthes paniculata (; from Latin panicula "panicle") is a tropical pitcher plant belonging to the genus Nepenthes.

Nepenthes ephippiata (; from Latin: ephippium "saddle cloth"), or the saddle-leaved pitcher-plant, is a tropical pitcher plant endemic to Borneo. It occurs in the Hose Mountains of central Sarawak, as well as Mount Raya and Bukit Lesung in Kalimantan. It grows in montane forest from 1,000 to 1,900 meters elevation. Non-climbing plants from the Hose Mountains appear to have less decurrent leaf attachment than specimens from Central Kalimantan, however the characteristic saddle after which the species is named is fully developed in climbing plants. Nepenthes ephippiata is closely related to N.

Nepenthes clipeata (; from Latin clipeus "round shield," referring to the leaf shape), or the shield-leaved pitcher-plant, is a tropical pitcher plant known only from the near-vertical granite cliff faces of Mount Kelam in West Kalimantan, Indonesia. It has an elevational distribution between approximately 600 and 800 m. Nepenthes clipeata is perhaps the most endangered of all Nepenthes species, with only an estimated 15 plants remaining in the wild as of 1995 (although see N. pitopangii and N. rigidifolia).