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096.0000 Family Annonaceae Juss.; Gen. Pl. [Jussieu] 283 (1789), nom. cons.
125 genera, ca. 2450 spp. Systematics following Nge et al. (2024)
Species listed in database: 2617; hybrids: 7
= Hornschuchiaceae J.Agardh; Theoria Syst. Pl. 65 (1858)
= Monodoraceae J.Agardh; Theoria Syst. Pl. 126 (1858)
096.4501 Genus Maasia Mols, Kessler & Rogstad; Syst. Bot. 33(3): 493 (2008)
Distribution: Tropical Asia
Species listed in database: 6
species :
Maasia discolor (Diels) Mols, Kessler & Rogstad; Syst. Bot. 33(3): 493 (2008)
Distribution: New Guinea (Irian Jaya, Papua New Guinea)
42 NWG
Synonyms: hidden
= Polyalthia discolor Diels; Bot. Jahrb. Syst. 49: 130 (1912)
species :
Maasia glauca (Hassk.) Mols, Kessler & Rogstad; Syst. Bot. 33(3): 493 (2008)
Distribution: Andaman Isl. (North Andaman Isl., Middle Andaman Isl., South Andaman Isl., Little Andaman Isl.); Nicobar Isl. (Car Nicobar Isl., North Nicobar Isl., Central Nicobar Isl., Great Nicobar Isl., Little Nicobar Isl.); Thailand (C-, E-, SW-, SE- & peninsular Thailand); peninsular Malaysia (Terengganu, Perak, Pahang, Selangor, Johor); Singapore; Sumatera; Borneo; Brunei; Sulawesi; Philippines (Luzon, Mindoro, Sibuyan, Dinagat, Mindanao); Jawa; Moluccas (Kei Isl.); New Guinea (Papua New Guinea)
41 AND NCB THA 42 BOR BRN JAW MLY MOL NWG PHI SNG SUL SUM
Conservation Status: endangered (Singapore)
Synonyms: hidden
= Guatteria glauca (Hassk.) Miq.; Fl. Ned. Ind. 1: 49 (1855), nom. illeg., non G. glauca Ruiz & Pav. (1798)
= Guatteria hypoleuca Miq.; Fl. Ned. Ind., Eerste Bijv. 381 (1861)
= Monoon glaucum (Hassk.) Miq.; Ann. Mus. Bot. Lugduno-Batavi 2: 19 (1865)
= Polyalthia glauca (Hassk.) Boerl.; Cat. Hort. Bot. Bogor. [Boerlage] 18 (1899), et in Icon. Bogor. [Boerlage] 1: 104 (1899), isonym
= Polyalthia glauca (Hassk.) F.Muell.; Descr. Notes Papuan Pl. 1: 95 (1877)
= Polyalthia merrittii (Merr.) Merr.; Philipp. J. Sci., C 10: 250 (1915)
= Polyalthia parkinsonii Hutch.; Bull. Misc. Inform. Kew 1917: 25 (1917)
= Unona merrittii Merr.; Philipp. J. Sci. 1: Suppl. 190 (1906)
= Uvaria glauca Hassk.; Flora 25(2, Beibl. 1): 31 (1842)
species :
Maasia hypoleuca (Hook.f. & Thomson) Mols, Kessler & Rogstad; Syst. Bot. 33(3): 493 (2008)
Distribution: Thailand (peninsular Thailand); peninsular Malaysia (Penang, Kelantan, Terengganu, Perak, Pahang, Selangor, Negeri Sembilan, Melaka, Johor); Singapore; Sumatera; Borneo; Brunei
41 THA 42 BOR BRN MLY SNG SUM
Synonyms: hidden
= Polyalthia hypoleuca Hook.f. & Thomson; Fl. Brit. India [J.D.Hooker] 1: 63 (1872)
species :
Maasia multinervis (Diels) Mols, Kessler & Rogstad; Syst. Bot. 33(3): 493 (2008)
Distribution: New Guinea (Papua New Guinea)
42 NWG
Synonyms: hidden
= Polyalthia multinervis Diels; Bot. Jahrb. Syst. 52: 178 (1915)
species :
Maasia ovalifolia (Rogstad) Mols, Kessler & Rogstad; Syst. Bot. 33(3): 493 (2008)
Distribution: Borneo (Sarawak); Brunei
42 BOR BRN
Synonyms: hidden
= Polyalthia ovalifolia Rogstad; J. Arnold Arbor. 70(2): 214 (1989)
species :
Maasia sumatrana (Miq.) Mols, Kessler & Rogstad; Syst. Bot. 33(3): 493 (2008)
Distribution: Andaman Isl.; Myanmar (Taninthayi); Thailand; peninsular Malaysia (Kelantan, Terengganu, Perak, Pahang, Selangor, Negeri Sembilan, Johor); Singapore; Sumatera; Borneo; Brunei
41 AND MYA THA 42 BOR BRN MLY SNG SUM
Synonyms: hidden
= Guatteria sumatrana Miq.; Fl. Ned. Ind., Eerste Bijv. 380 (1861)
= Monoon sumatranum (Miq.) Miq.; Ann. Mus. Bot. Lugduno-Batavi 2: 19 (1865)
= Polyalthia sumatrana (Miq.) King; J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 60(2): 53 (1892), isonym
= Polyalthia sumatrana (Miq.) Kurz; J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 43(2): 53 (1874)
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A complete, synonymic checklist of the Higher Plants of the World


Version 26.08 (August 2nd, 2026)

Covering 360,349 accepted species,
8,927 hybrids, 47,544 accepted infraspecific taxa and 1,011,667 synonyms,
in total 1,428,487* names

[*about 20,000 dubious, "unplaced" names and about 4,000 invalid names (Art. 24.3) like "typicus" are deliberately omitted]


With complete, detailed distribution data (countries and regions) and literature references

Arranged in linear phylogenetic sequence reflecting true relationships

Fully searchable and continously updated

With 38,209 pictures of 15,787 species

Assembled through 40 years independently from other databases

In cooperation with Catalogue of Life