Preliminary Checklist of Philippine Pteridophytes - Co's Digital Flora ...

Ophioglossum gramineum Willd.
var. gramineum
Ophioglossum intermedium Hook., Icon. Pl. 10 (1854) t. 995; --Copel., FFP 1 (1958) 18;
Ophioglossum nudicaule L.f., Suppl. (1781) 443; --Copel., FFP 1 (1958) 18;
var. nudicaule
var. macrorrhizum (Kunze) Clausen
Ophioglossum pendulum L., Sp. Pl. ed. 2 (1763) 1518; --Copel., FFP 1 (1958) 19; --Holttum,
Rev. Fl. Mal. 2 (1954) 40.
forma pendulum
Old World tropics from Madagascar through tropical Asia to Polynesia.
Throughout the Philippines. Epiphytic in everwet rainforests.
forma pendulum x forma nutans Alderw.
forma pendulum x forma falcatum (C Presl) Wief.
Ophioglossum reticulatum L., Sp. Pl. (1753) 1063; --Copel., FFP 1 (1958) 17;
forma reticulatum
Ophioglossum petiolatum Hook., Exot. Fl. (1823) pl. 56; --Copel., FFP 1 (1958) 17;
Ophioglossum nudicaule L. f. var. grandifolium Clausen, Mem. Torr. Bot. Club 19 (1938) 151; --Copel.,
FFP 1 (1958) 18;
? Ophioglossum ramosii Copel., PJS 56 (1935) 97, pl. 1, Fig. 1, 2; FFP 1 (1958) 18.
Pantropic. Probably throughout the Philippines.Terrestrial in humid mostly shaded
sites. Only present during the wet season, 0-1600m.
forma dilatatum (Miq.) Wief.
forma complicatum (Miq.) Wief.
Family 2. PSILOTACEAE (2 genera, 4 species)
1. Psilotum Linnaeus
Psilotum complanatum Sw., Syn. Fil. (1806) 188, 414, t. 4, Fig. 5.
Psilotum nudum (L.) Griseb., Prodr. Aethéogam. (1805) 112.
Psilotum triquetrum Sw., Schrad. J. Bot. 1800 (2) 1801
2. Tmesipteris Bernhardi
Tmesipteris lanceolata Dang, Le Botaniste 2 me Serie (1891)
Tmesipteris tannensis auctt. non (Spreng.) Bernh.
Family 3. EQUISETACEAE (1 genus, 1 species)
Revision:
Hauke, RI. 1963. A Taxonomic Monograph of the genus Equisetum subgenus Hippochaete.
Beih. Nova Hedwigia 8: 1-123.