Max Joseph Roemer

German botanist (1791–1849).

Max Joseph Roemer (1791, Munich – 1849) was a German botanist who worked in Weimar. Roemer served as Landrichter (country judge) in the Bavarian town of Aub before working as a private scientist in Würzburg. and is the taxonomic authority of the genera Heteromeles, Pyracantha, and Erythrocarpus as well as numerous plant species.

Abbreviations: M.Roem.
Occupations: botanist
Citizenships: Kingdom of Bavaria
Languages: Latin
Dates: 1791-01-01T00:00:00Z – 1849-01-01T00:00:00Z
Birth place: Bavaria
Direct attributions: 56 plants, 0 fungi
Authorship mentions: 63 plants, 0 fungi

56 plants attributed, 7 plants contributed to63 plants:

Pyracantha coccinea (Firethorn) M.Roem. 1847
plant species in the rosaceae family
Pyracantha coccinea, the scarlet firethorn is the European species of firethorn or red firethorn that has been cultivated in gardens since the late 16th century. The tree has small white flowers. It produces small, bright red berries. Its leaves are slightly toothed and grow opposite to one another. The fruit is bitter and astringent, making it inedible when raw. The fruit can be cooked to make jellies, jams, sauces and marmalade. It ranges from southern Europe to western Asia. It has been introduced to North America and cultivated there as an ornamental plant since the 18th century. In
Pyracantha (Firethorns) M.Roem. 1847
plant genus in the rosaceae family
Pyracantha (from Greek pyr "fire" and akanthos "thorn", hence firethorn) is a genus of large, thorny evergreen shrubs in the family Rosaceae, with common names firethorn or pyracantha. They are native to an area extending from Southwest Europe east to Southeast Asia. They resemble and are related to Cotoneaster, but have serrated leaf margins and numerous thorns (Cotoneaster is thornless).
Malus sieversii M.Roem. 1847
vulnerable plant species in the rosaceae family
Malus sieversii is a wild apple. According to DNA analysis conducted in 2010, it is the primary ancestor of the domesticated apple, M. domestica. Its scientific name is accredited to Johann August Carl Sievers. Native to Central Asia, M. sieversii prefers warm and damp habitats. Its conservation status is vulnerable.
Amelanchier alnifolia (Saskatoon Serviceberry) (Nutt.) Nutt. ex M.Roem. 1847
plant species in the rosaceae family
Amelanchier alnifolia, the saskatoon berry, Pacific serviceberry, western serviceberry, western shadbush, or western juneberry, is a shrub native to North America. It is a member of the rose family, and bears an edible berry-like fruit.
Toona ciliata (Australian Red Cedar) M.Roem. 1846
medicinal plant species in the meliaceae family
Toona ciliata is a forest tree in the mahogany family which grows throughout South Asia from Afghanistan to Papua New Guinea and Australia.
Toona (Redcedar) (Endl.) M.Roem. 1846
plant genus in the meliaceae family
Toona, commonly known as red cedar, toon (also spelled tun) or toona, tooni (in Nepal and India) is a genus in the mahogany family, Meliaceae, native from Afghanistan south to India, and east to North Korea, Papua New Guinea and eastern Australia. In older texts, the genus was often incorporated within a wider circumscription of the related genus Cedrela, but that genus is now restricted to species from the Americas.
Toona sinensis (Red Toon) (A.Juss.) M.Roem. 1846
medicinal and vegetable plant species in the meliaceae family
Toona sinensis, commonly called Chinese mahogany, Chinese cedar, Chinese toon, beef and onion plant, or red toon (Chinese: 香椿; pinyin: xiāngchūn; Korean: 참죽, romanized: chamjuk; Hindi: डारलू, romanized: ḍāralū; Malay: suren; Vietnamese: hương xuân) is a species of Toona native to eastern and southeastern Asia, ranging from northern Korean peninsula through most of eastern, central, and southwestern China, in Nepal, northeastern India, Burma (Myanmar), Thailand, and even present in Malaysia and western Indonesia.
Heteromeles arbutifolia (Toyon) (Lindl.) M.Roem. 1847
plant species in the rosaceae family
Heteromeles arbutifolia (, more commonly by Californian botanists), commonly known as toyon, is a perennial shrub native to Coastal California. It is the sole species in the genus Heteromeles.
Pyracantha crenulata (Nepalese Firethorn) (D.Don) M.Roem. 1847
medicinal plant species in the rosaceae family
Pyracantha crenulata, the Nepalese firethorn, Nepal firethorn or Himalayan firethorn, is a species of firethorn. The native range of this shrub species stretches from northern Pakistan to northwestern India and China.
Alsomitra macrocarpa (Javan Cucumber) (Blume) M.Roem. 1846
plant species in the cucurbitaceae family
Alsomitra macrocarpa, commonly known as Javan cucumber, is a species of gourd-bearing liana belonging to the pumpkin family Cucurbitaceae. It is native to the tropical forests of Maritime Southeast Asia, as well as Thailand and New Guinea and its nearby islands.
Xylocarpus moluccensis (Cedar Mangrove) (Lam.) M.Roem. 1846
medicinal plant species in the meliaceae family
Xylocarpus moluccensis is a tree in the family Meliaceae. The name derives from the Moluccas archipelago (now the Maluku Islands).
Sorbus sitchensis (Western Mountain Ash) M.Roem. 1847
plant species in the rosaceae family
Sorbus sitchensis, commonly known as western mountain ash and Sitka mountain-ash, is a small species of shrub of northwestern North America.
Sorbus sambucifolia (Siberian Mountain Ash) (Cham. & Schltdl.) M.Roem. 1847
plant species in the rosaceae family
Sorbus sambucifolia is a species of rowan native to Korea, northern and central Japan, Russian Far East and Alaska.
Cotoneaster melanocarpus (Dark-fruited Cotoneaster) (Ledeb.) Lodd., G.Lodd. & W.Lodd. ex M.Roem. 1847
medicinal plant species in the rosaceae family
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Aria edulis (Chess-apple) (Willd.) M.Roem. 1847
plant species in the rosaceae family
Aria edulis, the whitebeam or common whitebeam, is a species of deciduous tree in the family Rosaceae. The tree often forms new shoots around the trunk. Typically compact and domed, the plant has a few upswept branches and the leaves have an almost-white underside. The hermaphrodite cream-white flowers appear in May, are insect pollinated, and go on to produce scarlet berries, which are often eaten by birds. It is native to most of Europe as well as North Africa (Algeria, Morocco, Tunisia) and temperate Asia (Eastern Turkey, Armenia, Georgia). It generally favours dry limestone and chalk
Acis longifolia (Corsican Snowflake) J.Gay ex M.Roem. 1847
plant species in the amaryllidaceae family
Acis longifolia is a species of flowering plant in the family Amaryllidaceae, endemic to Corsica. Its white flowers appear in spring. It is sometimes cultivated as an ornamental plant, but is not fully frost-hardy.
Eriolobus trilobatus (Lebanese Wild Apple) (Labill. ex Poir.) M.Roem. 1847
plant species in the rosaceae family
Malus trilobata, the Lebanese wild apple, also known as the erect crab apple, Turkish apple, three-lobed apple or deer apple, is a species of apple (Malus) in the rose family (Rosaceae). It has a discontinuous range in the eastern Mediterranean, including Thrace, coastal Anatolia and the Levant, but almost always as a rare species. First described in 1810 as Crataegus trilobata, it has a complex taxonomic history, and some authorities place it in the segregate genus Eriolobus, as Eriolobus trilobatus, either alone or together with the closely related Italian crabapple (Malus florentina) from
Eriolobus (DC.) M.Roem. 1847
plant genus in the rosaceae family
Eriolobus is a former genus of plants in the family Rosaceae, native to Europe and the Middle East that is synonymized with Malus, the apples. Two species formerly included in it were Eriolobus florentinus, now Malus florentina and Eriolobus trilobatus, now Malus trilobata.
Amelanchier bartramiana (Oblong-fruited Serviceberry) (Tausch) M.Roem. 1847
plant species in the rosaceae family
Amelanchier bartramiana is a species of serviceberry. Common names include mountain serviceberry, mountain shadbush, Bartram's serviceberry, mountain juneberry, Bartram juneberry, and the oblongfruit serviceberry. The leaves of A. bartramiana are either brown or green coloured, are egg-shaped and tapered at both ends with fine teeth almost to the base. It has 6–12 teeth while its lateral veins comes 10–16 pairs. Its petioles are 2–10 millimetres (0.079–0.394 in) long while its blades are ovate and elliptic. The flowers have five white petals, appearing singly or in clusters of up to four
Ismene narcissiflora (Basket-flower) (Jacq.) M.Roem. 1847
plant species in the amaryllidaceae family
Ismene narcissiflora is a plant species in the family Amaryllidaceae. It is native to Peru and Bolivia.
Hymenocallis latifolia (Perfumed Spiderlily) (Mill.) M.Roem. 1847
plant species in the amaryllidaceae family
Hymenocallis latifolia (mangrove spider-lily or perfumed spider-lily) is a bulb-forming perennial that grows on beaches, sand dunes, mangrove swamps and other wetlands along the coasts of Florida, Mexico, and the West Indies (Cuba, Jamaica, Puerto Rico, Cayman Islands, Bahamas, etc.). It has showy white flowers and large green seeds up to 2.5 cm in diam. Common names include "mangrove spider-lily," "perfumed spider-lily,"
Pyrolirion tubiflorum (L'Hér.) M.Roem. 1847
plant species in the amaryllidaceae family
Pyrolirion tubiflorum is a species of flowering plant in the family Amaryllidaceae. It is a perennial bulbous geophyte distributed in Peru, North Chile, and Ecuador.
Micromelum integerrimum (Roxb. ex DC.) Wight & Arn. ex M.Roem. 1846
medicinal plant species in the rutaceae family
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Merope M.Roem. 1846
plant genus in the rutaceae family
Merope angulata is a species of flowering plant in the family Rutaceae. It is a tree that ranges from northeastern India through Bangladesh, Myanmar, the Andaman and Nicobar islands, Peninsular Malaysia, Borneo, Java, Sulawesi, the Philippines, and Maluku Islands to New Guinea. It is the sole species in genus Merope. It is an erect shrub growing up to 3 meters tall, with sparse stems growing from a root crown. Stout spines 1.5 – 3.5 cm long grow on the axils of juvenile stems. Leaves are oval, alternate, thick, and leathery, measuring 4.5 – 16 by 2 – 7 cm. The leaves are oval with blunt or
Hymenocallis ovata (Mill.) M.Roem. 1847
plant species in the amaryllidaceae family
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Hymenocallis ornata M.Roem. 1847
plant species in the amaryllidaceae family
Hymenocallis ornata is a bulb-forming herb native to Guatemala. It has showy white flowers and is frequently grown as an ornamental in many places. Hymenocallis ornata is a bulb-forming perennial with flowers in an umbel.
Crinum kunthianum M.Roem. 1847
plant species in the amaryllidaceae family
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Zephyranthes bifolia (Aubl.) M.Roem. 1847
plant species in the amaryllidaceae family
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Lygodiaceae (Climbing Ferns) M.Roem. 1840
plant family in the order schizaeales
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Amelanchier pumila (Dwarf Serviceberry) (Torr. & A.Gray) Nutt. ex M.Roem. 1847
plant species in the rosaceae family
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