In an analogous way, the humus-collecting fronds of larger Platycerium
or Drynaria individuals allow these canopy-dwelling ferns to obtain more nutrients, while juveniles only feature green fronds (Goebel, 1913).
Demise 2004 A New Record of the Fern Platycerium
Indigenous to warm, humid regions near the equator, such as the Indonesian Islands, the Philippines, certain regions of coastal Africa and the island of Madagascar, these non-flowering perennials of the Polypodiaceae family belong to the genus Platycerium (from the Greek word meaning "broad horn").
Only the common Platycerium bifurcatum will tolerate a temperature of 40 F or less for a short period.
A review of the species of Platycerium
The initiation and early development of fern leaf primordia has been described for several species, including Hymenophyllaceae (Hebant-Mauri, 1973, 1984, 1990; Hagemann, 1988), Dicksonia (Hebant-Mauri, 1975), Ceratopteris (Hebant-Mauri, 1977), Stromatopteris (Hebant-Mauri & Veillon, 1989), Salvinia (Croxdale, 1978, 1979, 1981), Marsileaceae (Schmidt, 1978), Dennstaedtiaceae (Imaichi, 1980, 1982, 1983, 1984), Adiantum (Imaichi, 1988; Gupta & Bhambie, 1992), Botrychium (Imaichi & Nishida, 1986; Imaichi, 1989), Lygodium (Mueller, 1982a), Platycerium
(Lee, 1989), and Gleicheniaceae (Hagemann & Schulz, 1978).
Over the many years of subsequent research additional examples of ferns with foliar nectaries have been added to the list: Platycerium
(Dummer, 1911); the Aglaomorpha and Drynaria group (Luttge, 1971; Zamora and Vargas, 1974; Potes, 2010); Polybotrya and Pleopeltis (as Polypodium) (Koptur, 1982; Koptur et al.
492 Polypodiaceae Dipteris conjugata 493 Drynaria quercifolia 494 Microsorum sarawakensis 495 Platycerium
coronarium 496 Polypodium verrucosum 497 Schizaceae Lygodium flexuosum 498 Lygodium microphyllum 499 Schizaea dichotoma 500 Selaginellaceae Selaginella sp.
The genus Platycerium
consists of about 18 species, commonly found in tropical and subtropical forests.
Apospory in leaf culture of staghorn fern Platycerium
Indeed, Camloh (1993, 1999) reported that the best germination of Platycerium
If one says that possession of reticulate pit membranes, as in Blechnum and Platycerium
, could constitute a criterion, one could conceivably develop a criterion that hydrolysis of more than 50% of the pit membrane would result in formation of vessels, and thus Blechnum and Platycerium
might be said to have vessels.