familyBlechnaceae
genusBlechnum
Show Lower Taxa
Blechnum
Sp. Pl. 2: 1077. 1753; Gen. Pl. ed. 5, 485, 1754.
Common names: Deer ferns
Etymology: Greek blechnon, an ancient name for ferns in general
Treatment appears in FNA Volume 2.
Taxon | Illustrator ⠉ | |
---|---|---|
Blechnum spicant Woodwardia fimbriata Woodwardia areolata | John Myers John Myers John Myers |
Plants terrestrial or rarely on rock. Stems creeping to ascending or erect, slender to stout, sometimes climbing [rarely subarborescent]; scales brown or black. Leaves monomorphic or variously dimorphic, cespitose to scattered. Blades pinnatifid to 1-pinnate, rarely simple or 2-pinnate. Rachis and costae glabrous, scaly, or hairy abaxially. Veins free, often forked. Sori borne on vascular commissures parallel to costae, 1 per side, normally uninterrupted, linear, continuous along length of costa. Spores with perine smooth to variously winged or rugose. x = 28, 29, 31, 32, 34, 36.
Distribution
Mostly tropical, especially Southern Hemisphere
Discussion
Species ca. 220 (3 in the flora).
Selected References
None.
Lower Taxa
Key
1 | Leaves strongly dimorphic, fertile leaves notably more erect, longer, and with narrower pinnae than sterile leaves; sterile blades tapering at base. | Blechnum spicant |
1 | Leaves ± monomorphic, fertile leaves only slightly longer and somewhat contracted relative to sterile leaves; sterile blades ± truncate at base. | > 2 |
2 | Blades 1-pinnate proximally and pinnatifid distally or pinnatifid nearly throughout, usually less than 50 cm; pinna margins ± entire. | Blechnum occidentale var. minor |
2 | Blades 1-pinnate throughout, usually more than 50 cm; pinna margins ± evenly serrulate. | Blechnum serrulatum |
... more about "Blechnum"
capitate +
capitate +
anthocyanic +
pinnatifid +
vascular +
parallel +
Deer ferns +
sorus-bearing +
parallel +
sorus-bearing +
parallel +
green +
cordate +
capitate +
capitate +
absent +
hidden +
monomorphic +
scattered +
coarse +
absent +
ornamented +
not articulate +
Sp. Pl. +
1754 +
grooved +
sorus-bearing +
elongate +
monolete +
reniform +
dictyostelic +
climbing +
Blechnum +
Blechnaceae +
genus +
arranged +
anastomosing +
free +
fertile +
forked +
perennial +
epiphytic +