Asplenium trichomanes subsp. quadrivalens

D. E. Meyer

Ber. Deutsch. Bot. Ges. 74: 456. 1962.

Treatment appears in FNA Volume 2.

Spores (as measured in Hoyers Solution) 37–43 µm. 2n = 144.


Habitat: Calcareous rocks such as limestone and dolomite
Elevation: 0–3000 m

Distribution

V2 433-distribution-map.gif

B.C., Ont., Que., Conn., Del., Ill., Maine, Md., Mass., Mich., N.H., N.J., N.Y., Ohio, Oreg., Pa., Vt., Va., Wash., W.Va., Wis., Europe, Asia, Africa, Pacific Islands in New Zealand, Australia

Discussion

Selected References

None.

Lower Taxa

None.
not rooting +
Obtuse (?) +  and Acute (?) +
Warren H. Wagner Jr. +, Robbin C. Moran +  and Charles R. Werth +
D. E. Meyer +
cuneate +  and tapered +
simple +  and 4-pinnate +
3 cm30 mm <br />0.03 m <br /> (22 cm220 mm <br />0.22 m <br />) +
pubescent +  and glabrous +
thin;0.5cm;1.5cm +
B.C. +, Ont. +, Que. +, Conn. +, Del. +, Ill. +, Maine +, Md. +, Mass. +, Mich. +, N.H. +, N.J. +, N.Y. +, Ohio +, Oreg. +, Pa. +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Europe +, Asia +, Africa +, Pacific Islands in New Zealand +  and Australia +
0–3000 m +
Calcareous rocks such as limestone and dolomite +
of black , linear;lanceolate or filiform scales +
monomorphic +
fertile +  and than sterile ones +
entire +  and serrate +
crenate +, entire +  and denticulate +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
perforate +, reticulate +, spiny +  and winged +
not articulate +
4 cm40 mm <br />0.04 m <br /> (7 cm70 mm <br />0.07 m <br />) +
blackish brown +  and reddish-brown +
1/6 length of blade;1/4 length of blade +
c--shaped +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Ber. Deutsch. Bot. Ges. +
reddish-brown +
nearly +  and glabrous +
not proliferous +
black +  and with brown borders +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
filiform +, linear-lanceolate +  and lanceolate +
0.2mm;0.5mm +
acroscopic +  and basiscopic +
less lunate;linear +
Illustrated +
dorsiventral +  and symmetric +
Asplenium trichomanes subsp. quadrivalens +
Asplenium trichomanes +
subspecies +
anastomosing +