Amphineuron opulentum

Distribution

Africa:, Seychelles (Seychelles present) Asia-Tropical:, Thailand (Thailand present) Burma: present Ceylon: present East Africa: present N. Queensland: present S. India: present Tahiti: present islands of the Pacific: present tropical America:
East Africa; Seychelles; S. India and Ceylon; Burma, Thailand; Malesia; N. Queensland; islands of the Pacific to Tahiti; naturalized at various places in tropical America.

Notes

A fuller synonymy, and commentary on it, is given in Holttum 1977. Mettenius published the first good description (as Aspidium conioneuron) with a note on the diversity of venation. The species seems not to be common in most parts of Malesia (doubtfully native in Java, few specimens from Borneo and the Philippines). Plants have long been cultivated in Singapore (origin unrecorded) and occur spontaneously on the edges of drains and elsewhere near the Botanic Garden; these plants are tetraploid. The center of distribution of the species is uncertain; possibly southern India.

Citation

Holttum - in Blumea. 1977: 212
v.A.v.R., Handb. 1908: 210
Backer & Posth., Varenfl. Java. 1939: 57
Holttum - in Rev. Fl. Malaya. 1955: f. 150
Copel., Fern Fl. Philip. 1960: 368
Bedd., Handb. 1883: 269

Synonymy

Amphineuron opulentum (Kaulf.) Holttum in Blumea 19: 45. 1971
  • Aspidium opulentum Kaulf., Enum. Fil. Chamisso: 238. 1824
  • Thelypteris opulenta (Kaulf.) Fosberg in Smiths. Contr. Bot. 8: 3. 1972
    • Unknown type category: Chamisso.
  • =Nephrodium impressum Desv. in Mem. Soc. Linn. Paris 6: 259. 1827
  • Dryopteris impressa (Desv.) Posth. in Verh. K. Akad. Wet. Amst. 36: 14. 1937
  • Thelypteris impressa (Desv.) Reed in Phytologia 17: 284. 1968
    • Unknown type category: collector not cited.
  • =Aspidium extensum Bl., En. Pl. Jav.: 156. 1828
  • Nephrodium extensum (Bl.) Moore, Ind. Fil.: 91. 1858
  • Dryopteris extensa (Bl.) O. Ktze in Rev. Gen. Pl. 2: 812. 1891
  • Cyclosorus extensus (Bl.) Ching in Bull. Fan Mem. Inst. Biol. Bot. 8: 182. 1938
  • Thelypteris extensa (Bl.) Morton in Amer. Fern J. 49: 113. 1959
    • Unknown type category: Pulu Pinang, no collector cited.
  • =Lastrea malaccensis Presl, Epim. Bot.: 35. 1851
    • Unknown type category: Cuming 391.
    • Unknown type category: Cuming 391.
  • =Nephrodium conioneuron Fee, Gen. Fil.: 308. 1852
  • Aspidium conioneuron (Fee) Mett. in Farngatt. IV: 102. 1858
    • Isotype: Gardner.
  • =Aspidium nephrodioides Hook. in Spec. Fil. 4: t. 235. 1862
  • Aspidium hookeri BAK., Syn. Fil.: 257. 1867
  • Dryopteris orbicularis C. Chr., Ind. Fil.: 281. 1905
  • Thelypteris orbicularis (C. Chr.) Reed in Phytologia 17: 299. 1968
    • Unknown type category: Seemann.

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