Pyrrosia lanceolata

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Pyrrosia lanceolata

Description

Stellate hairs monomorphic, a thin to dense mat, the straight rays boat-shaped to nearly acicular.

Distribution

Africa: present Asia-Tropical: Southeast Asia to the Pacific: present
Africa; Southeast Asia to the Pacific. Throughout Malesia.

Anatomy

Anatomy:

Taxonomy

Infraspecific variation. Several species are here included in P. lanceolata which have widely been regarded as separate. In the Malesian area the most common and best recognisable forms have been named as:
  • ‘adnascens’: Small plants, rather thick-leathery, with distinctly dimorphic fronds, the sterile ones often with rounded apex; rhizome scales short, mostly appressed. Throughout Malesia.
  • ‘varia’: Larger plants, thin-leathery, with wider, less distinctly dimorphic fronds, the sterile ones often with acute apex; rhizome scales large, spreading. Throughout Malesia. Although the original name is based on material that clearly represents the previous form, the most widely used interpretation is based on Blume’s plate (1829: plate 21), which clearly represents this form.
  • ‘dimorpha’: Relatively large plants, distinctly dimorphic, the sterile fronds often with rounded apex; rhizome scales often with a long entire filiform apex. Confined to New Guinea and surrounding islands.
  • ‘stellata’: Small plants, similar to ‘adnascens’, but with a very dense, conspicuously whitish indument. Restricted to New Guinea and surrounding islands; similar forms not always distinct from ‘adnascens’ sporadically occur in other areas.

Uses

Crushed and mixed with jintan itam and onion, then applied externally to relieve headache (Malaya); used to cure dysentery (Malaya).

Citation

C. Presl, Tent. Pterid. 1836: 201
Baker - in Ann. Bot. (London). 1891: 472
C. Presl, Tent. Pterid. 1836: 201
Desv. - in Mém. Soc. Linn. Paris. 1827: 224
Alderw., Malayan Ferns. 1917: 411
Kaulf., Epim. Bot. 1851: 127
Ching - in Bull. Chin. Bot. Soc. 1935: 70
Burm. f., Fl. Ind. 1768: 228
Farwell - in Amer. Midl. Nat. 1930: 245
Blume, Enum. Pl. Javae. 1828: 106
Alderw., Malayan Ferns. 1908: 681
Blume, Epim. Bot. 1851: 126
C. Presl, Tent. Pterid. 1836: 202
Backer & Posth., Varenfl. Java. 1939: f. 57
Hoshiz. - in Baileya. 1981: f. 13
Racib., Pterid. Buitenzorg. 1898: 98
Alderw., Malayan Ferns. 1908: 680
Blume, Epim. Bot. 1851: 126
Kaulf., Fl. Javae Fil. 1829: pl. 22
Blume, Fl. Javae Fil. 1829: pl. 20
Copel., Fern Fl. Philipp. 1960: 471
Holttum - in Revis. Fl. Malaya. 1955: f. 61
Alderw., Malayan Ferns. 1917: 412
Backer & Posth., Varenfl. Java. 1939: 238
Ching - in Bull. Chin. Bot. Soc. 1935: 46
Hoshiz. - in Baileya. 1981: f. 2
Wagner - in Amer. J. Bot. 1952: 587
Blume, Enum. Pl. Javae. 1828: 275
Ching - in Bull. Chin. Bot. Soc. 1935: 70
Kaulf., Fl. Javae Fil. 1829: 53
Copel., Fern Fl. Philipp. 1960: 471
Giesenh., Niphobolus. 1901: 151, 198, 208
Kaulf., Fl. Javae Fil. 1829: pl. 21
C. Chr. & Holttum - in Gard. Bull. Str. Settlem. 1934: 313
C. Chr., Index Filic. 1906: 201
Hovenkamp - in Leiden Bot. Ser. 1986: 191
Morton - in J. Wash. Acad. Sc. 1946: 168
Blume, Fl. Javae Fil. 1829: pl. 19
Giesenh., Niphobolus. 1901: f. 18
Blume, Enum. Pl. Javae. 1828: 106
Racib., Pterid. Buitenzorg. 1898: 100
Baker, Syn. Fil. 1867: 349
Alderw., Malayan Ferns. 1908: 682
Holttum - in Revis. Fl. Malaya. 1955: f. 60
C. Presl, Tent. Pterid. 1836: 201
Zamora & Co - in Guide Philipp. Flora & Fauna. 1986: 31
L. - in Sp. Pl., ed. 1763: 1523
Willd. - in Sp. Pl. 1810: 145
Desv. - in Mém. Soc. Linn. Paris. 1827: 224