Contains 10 accepted taxa overall.
Characteristics
Classification
Citation
ASPLENIUM Linnaeus, Sp. Pl. 1078. 1753.
-
TYPE: Asplenium marinum Linnaeus Lectotypified by J. Smith, Hist. Filicum 316. 1875.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Asplenium bradleyi | Bradley's Spleenwort | |||
| Asplenium heterochroum | Bicolored Spleenwort | |||
| Asplenium heteroresiliens | Marl Spleenwort, Carolina Spleenwort, Wagner's Spleenwort, Morzenti's Spleenwort | |||
| Asplenium monanthes | Single-sorus Spleenwort | |||
| Asplenium montanum | Mountain Spleenwort | |||
| Asplenium pinnatifidum | Lobed Spleenwort | |||
| Asplenium platyneuron | Ebony spleenwort | |||
| Asplenium resiliens | Blackstem Spleenwort | |||
| Asplenium rhizophyllum | Walking Fern | |||
| Asplenium trichomanes | Maidenhair Spleenwort |
Identification Key
1. Leaves simple, the petiole indistinct from the blade
1. Leaves 1- to 3-pinnate, with a distinct, naked petiole
2
2. Leaves 2- or 3-pinnate (at least some leaves, the pinnae rachis sometimes winged)
3
2. Leaves 1-pinnate
7
3. Spores of uniform shape and size
4
3. Spores malformed, of different sizes and shapes
4
4. Leaves 1- to 2-pinnate, the pinnae shallowly divided with little space between the blade tissue, the pinnules mostly coarsely dentate
4. Leaves 2- to 3-pinnate, the pinnae deeply divided with wide spaces between the blade tissue the pinnules mostly oblong-elliptic to deeply lobed
5. Overall leaf shape linear-lanceolate, the pinnae to 2 cm long
5. Overall leaf shape lanceolate, the pinnae to 6 cm long
6
6. Medial pinnae pinnately divided throughout
6. Medial pinnae pinnately divided only in the proximal part, lobed or toothed distally
7. Overall leaf blade shape broadly deltoid, with 1-2(4) pairs of pinnae, the veins with fine eglandular hairs
7. Overall leaf blade shape linear-oblong to lanceolate, with 5-35 pairs of pinnae, the veins usually with hair-like scales or glandular hairs or glabrous
8
8. Leaves with 4-8(12) pairs of pinnae
9
8. Leaves with (10)15-40 pairs of pinnae
10
9. Overall leaf blade shape deltate; pinnae 30-70 mm long (at least larger ones)
9. Overall leaf blade shape linear-oblong; pinnae 2-11 mm long
10. Blade tissue at base of pinnae overlapping the primary rachis
10. Blade tissue at base of pinnae not overlapping the primary rachis
11
11. Pinnae with 1-2(3) sori, these along the distal, proximal margin and perpendicular to the primary rachis
11. Pinnae with (1)4-10 sori, these mostly evenly distributed along the pinnae along lateral veins
12
12. Medial pinnae 2-6(9) cm long (at least on larger leaves); epiphyte on trees
12. Medial pinnae 0.2-2 cm long; mostly on rocks or in rocky areas
13
13. Pinnae 2-9 mm long, 1-1.5(2) times longer than wide
13. Pinnae (5)6-20 mm long, 1.5-2.5(3) times longer than wide
14
14. Pinnae margins subentire, undulate, or obscurely crenate-dentate; sori supramedial; spores 32
14. Pinnae margins distinctly crenate or dentate; sori medial to inframedial; spores 32 or 64 per sporangium
15
15. Pinnae margins dentate to crenate, a basal auricle lacking or obscure, the veins conspicuous; spores 64 per sporangium
15. Pinnae margins shallowly crenulate, with a basal auricle, the veins obscure; spores 32 per sporangium
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||