A. yabotiensis
|
0.60–1 x 0.15–0.30 m. |
Elliptic to elliptic-lanceolate. |
Pinnate–pinnatifid. |
Absent. |
(4–)6–8 pairs sub-abruptly reduced, the basalmost auriculiform. Vestigial absent. |
Generally ascending. |
10-25 x 3-5 mm Adnate Basal, equal or larger than the adjacent. Elongate and sometimes auriculate. |
Simple or furcate on the largest fronds. |
Trichomes uncinate on rhizome scales and petiole base. Trichomes acicular on axes. |
Orbicular, minutely, with trichomes acicular or setiform. |
Absent. |
NE Argentina. |
A. amambayensis
|
0.40-1 m x 0.9–0.22 m. |
Elliptic or narrowly-elliptic |
Pinnate–pinnatifid. |
Papillate or mammilla-like. |
3-5 pairs sub-abruptly reduced. |
Horizontal to sub-oblique. |
6.5-12 x 2.5-4.5mm. Adnate Basal equal or mildly larger than the adjacent. |
Simple. |
Trichomes acicular and uncinate on rhizome scales. Trichomes uncinate and setiform on axes and laminar tissue. |
Absent. |
Present. |
NE Argentina, S-SE Brazil, CS-NE Paraguay. |
A. burkartii
|
0.25–0.75 m x 0.7-0.15 m. |
Elliptic or narrowly-elliptic |
Pinnate–pinnatifid. |
Absent. |
2-4 pairs gradual to sub-abruptly reduced, the lesser auriculiform. |
Oblique-arched. |
7-9 x 2.5-3.6mm. Adnate. Basal midly larger than adjacent. |
Simple. |
Absent or trichomes setiform on axes. Trichomes uncinate ocasionally on the abaxial laminar tissue. |
Reniform or «subathyrioid», glabrous. |
Absent. |
CE Argentina, CW-S-SE Brazil. |
A. eriosorus
|
1.10 – 2.10 x 0.16 – 0.26 m. |
Elliptic-lanceolate |
Pinnate–pinnatifid. |
Absent or inconspiuous, papillate or mammilla-like. |
2-4 pairs abruptly reduced, auriculiform. |
Perpendicular to slightly ascending. |
7.5 – 15.1 mm. Adnate. |
Simple or furcate. |
Trichomes setiform on the rhizome scales and on both sides of the laminar tissue. |
Reduced to a fascicle of trichomes setiform. |
Absent. |
SE Brazil. |
A. patula
|
0.95 – 2.37 x 0.74-1.80 m. |
Widely elliptic-lanceolate. |
Pinnate–pinnatifid to 2- pinnate–pinnatifid. |
Papillate or mammilla-like. |
3-5 pairs abruptly reduced, auriculiform. Vestigial pinnae present. |
Pinnae ascending; segments perpendicular each other. |
10 – 28. 6 x 4-6 mm. Adnate to attached by a narrowed base. Basal slightly smaller than the adjacent. |
Simple or furcate. |
Trichomes setiform on petiole, laminar tissue and axes. Sometimes scales on axes. |
Reniform or orbicular with trichomes setiform. |
Absent. |
S-SE Brazil. |
A. pleiophylla
|
0.49 -0.51 m x 0.12 – 0.14 cm |
Elliptic. |
Pinnate–pinnatifid. |
Absent. |
6-10 pairs gradually reduced |
Perpendicular to slightly ascending. |
6–7 x 3-4 mm. Adnate. Basal-most auriculate, larger than the adjacent segments |
Simple. |
Trichomes uncinate on petioles and rhizome scales. Trichomes long, pluricellular and sericeous on petioles. |
Reniform or orbicular with trichomes setiform. |
Absen.t. |
S Brazil |
A. pteroidea
|
1.5-5 |
Widely elliptic |
2-pinnate proximally, pinnate–pinnatifid distally. |
Absent. |
7 pairs abruptly reduced. |
Ascending or arched |
20-30 x 4-6 mm Attached by a narrowed base or shortly petiolulate. Basal-most shorter and gradually reduced . |
Simple furcate or 2-furcate. |
Trichomes setose on rhizome scales. Trichome setose, antrorse on abaxial costae and veins. Lanceolate scales on abaxial costae. |
Absent. |
Absent. |
Colombia, Ecuador, Venezuela, Cuba |
A. recumbens
|
0,30-1,20 x 0.8-0.25 m |
Narrowly elliptic |
Pinnate–pinnatifid. |
Papillate or mammilla-like. |
2-4(-5) sub-abruptly to abruptly reduced, basalmost auriculiform. |
Perpendicular to slightly ascending. |
6.5 – 14 x 2.5-4 mm. Basal-most equal or shorter than the next-adjacent. |
Simple. |
Trichomes uncinate on rhizome scales, petiole bases, axes and sometimes laminar tissue. Trichomes acicular on costae and veins. |
Reniform, uncinulate-hairy. |
Present. |
NE Argentina, S Brazil, E Paraguay |
A. regnelliana
|
0.36-1.30 x 0.14-0.19 m |
Elliptic. |
Pinnate–pinnatifid. |
Absent or not fully developed. |
4-6 pairs sub-abruptly reduced, basalmost auriculiform. |
Perpendicular to slightly ascending. |
6,4 - 8,9 x 2.6-7 mm. Adnate. Basal-most shorter than the next adjacent. |
Simple. |
Trichomes uncinate, acicular and setose on on rhizome scales, petioles, axes and laminar tissue. |
Reduced to a fascicle of setiform, rarely uncinulate hairs, or absent. |
Absent.. |
NE Argentina, S-SE Brazil. |
A. rivularioides
|
0,30-1,10 x 0.6-1.7 m |
Narrowly elliptic to linear-lanceolate. |
Pinnate–pinnatifid. |
Absent. |
4-8 pairs gradually reduced. |
Perpendicular to slightly ascending. |
5.7 - 9 x 2.5-3.5 mm. Adnate. Basal-most longer than the next-adjacent |
Simple or furcate on the largest segments. |
Trichomes sericeous on petioles. Trichomes acicular, setiform or uncinate on the abaxial laminar tissue and veins. Trichomes acicular and setiform on axes. |
Reniform with trichomes glandular, acicular and or uncinate. |
Absent. |
NW-NE-CE Argentina, S-SE-CW-NE Brazil, S - E – NE Paraguay, E Uruguay, E- S Bolivia |
Doryopteris. organensis
|
1 × 0.22 m |
Linear-ovate-lanceolate |
Pinnate–pinnatifid. |
Present, at the pinnae bases. |
6-8 pairs abruptly reduced, vestigial. |
Perpendicular each other. |
7-8 x 2-3 mm Adnate. Basal-most not or mildly enlarged. |
Simple |
Trichomes setiform on axes. |
Not seen, small and long-ciliate in the original description. |
Absent. |
SE Brazil |