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Pteris

Pteris
Family: Pteridaceae
Media
not available
  • FNA
  • Resources
Clifton E. Nauman in Flora of North America (vol. 2)
Plants terrestrial or on rock. Stems erect or creeping, branched; scales pale brown to black, concolored, elongate, margins entire. Leaves monomorphic, clustered or closely spaced, 1--20 dm. Petiole straw-colored, green, brownish red to purple black, longitudinally ridged, 2--3-grooved adaxially, scaly at base, glabrous or scaly distally, with 1 (less often 2 or more) vascular bundle. Blade oblong to lanceolate to deltate, 1--4-pinnate, herbaceous to leathery, abaxially and adaxially glabrous or sometimes pubescent or scaly, adaxially dull, not striate; rachis straight. Ultimate segments of blade sessile to short-stalked, linear to oblong-lanceolate, 1.5--8 mm wide; base truncate or narrowed to stalk, stalk when present green, not lustrous; margins plane or reflexed to form false indusia. Veins in leaves conspicuous, free (except in sori) and forking well above base of segment, or highly anastomosing. False indusia pale, scarious, covering sori. Sporangia intramarginal, sori usually continuous except at pinna or segment apex and sinuses, paraphyses present. Spores brown, trilete, tetrahedral, rugate and/or tuberculate, usually with prominent equatorial flange. x = 29.
<< 51 - 100 taxa >>
Pteris dataensis
Media resource of Pteris dataensis
Map not
Available
Pteris decrescens
Media resource of Pteris decrescens
Map not
Available
Pteris decurrens
Media resource of Pteris decurrens
Map not
Available
Pteris deflexa
Media resource of Pteris deflexa
Map not
Available
Pteris delchampsii
Media resource of Pteris delchampsii
Map not
Available
Pteris deltea
Media resource of Pteris deltea
Map not
Available
Pteris deltodon
Media resource of Pteris deltodon
Map not
Available
Pteris deltoidea
Media
not available
Map not
Available
Pteris dentata
Media resource of Pteris dentata
Map not
Available
Pteris denticulata
Media resource of Pteris denticulata
Map not
Available
Pteris dimorpha
Media
not available
Map not
Available
Pteris dispar
Media resource of Pteris dispar
Map not
Available
Pteris distans
Media resource of Pteris distans
Map not
Available
Pteris dixitii
Media
not available
Map not
Available
Pteris edanyoi
Media resource of Pteris edanyoi
Map not
Available
Pteris ekemae
Media
not available
Map not
Available
Pteris elmeri
Media resource of Pteris elmeri
Map not
Available
Pteris elongatiloba
Media
not available
Map not
Available
Pteris emodi
Media resource of Pteris emodi
Map not
Available
Pteris endoneura
Media
not available
Map not
Available
Pteris ensiformis
Media resource of Pteris ensiformis
Map not
Available
Pteris erosa
Media resource of Pteris erosa
Map not
Available
Pteris excelsa
Media resource of Pteris excelsa
Map not
Available
Pteris fauriei
Media resource of Pteris fauriei
Map not
Available
Pteris finotii
Media resource of Pteris finotii
Map not
Available
Pteris flabellata
Media resource of Pteris flabellata
Map not
Available
Pteris formosana
Media resource of Pteris formosana
Map not
Available
Pteris fraseri
Media
not available
Map not
Available
Pteris friesii
Media resource of Pteris friesii
Map not
Available
Pteris gallinopes
Media resource of Pteris gallinopes
Map not
Available
Pteris gigantea
Media resource of Pteris gigantea
Map not
Available
Pteris glaucovirens
Media resource of Pteris glaucovirens
Map not
Available
Pteris grandifolia
Media resource of Pteris grandifolia
Map not
Available
Pteris grevilleana
Media resource of Pteris grevilleana
Map not
Available
Pteris haenkeana
Media resource of Pteris haenkeana
Map not
Available
Pteris hamulosa
Media resource of Pteris hamulosa
Map not
Available
Pteris henryi
Media resource of Pteris henryi
Map not
Available
Pteris heteroclita
Media resource of Pteris heteroclita
Map not
Available
Pteris heteromorpha
Media resource of Pteris heteromorpha
Map not
Available
Pteris hexagona
Media resource of Pteris hexagona
Map not
Available
Pteris hillebrandii
Media resource of Pteris hillebrandii
Map not
Available
Pteris hirsuta
Media resource of Pteris hirsuta
Map not
Available
Pteris hispaniolica
Media resource of Pteris hispaniolica
Map not
Available
Pteris hookeriana
Media resource of Pteris hookeriana
Map not
Available
Pteris humbertii
Media
not available
Map not
Available
Pteris inaequalis
Media resource of Pteris inaequalis
Map not
Available
Pteris incompleta
Media
not available
Map not
Available
Pteris inermis
Media resource of Pteris inermis
Map not
Available
Pteris insignis
Media resource of Pteris insignis
Map not
Available
Pteris intricata
Media resource of Pteris intricata
Map not
Available
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