It is a delicate plant with a slender stipe and rachis and relatively few pinnae. Diploid. Asplenium trichomanes subsp. quadrivalens prefers calcareous rocks such as limestone and dolomite and often grows on the mortar in walls.
This subspecies is typically found on alkaline substrates (I.e. limestone) with spores ranging from 37-43 microns. This subspecies is a tetraploid. More ...
Asplenium trichomanes ssp. quadrivalens is a fern occurring nearly worldwide on calcareous rocks. In North America, it occurs from British Columbia south to ...
Maidenhair spleenwort is divided into two subspecies, one (Asplenium trichomanes ssp. ... Subspecies quadrivalens is known from CT, MA, ME, NH, VT. Subspecies ...
Asplenium trichomanes subsp. quadrivalens , the tetraploid, grows on calcareous substrates and has a more northern distribution (R. C. Moran 1982). Triploid ...
Detailed description. Plants tetraploid. Rhizome stout, erect, bearing dark brown subulate scales up to 5 mm long. Stipes 10–100 mm long, dark brown, shining, ...
Asplenium trichomanes quadrivalens is a subspecies of plants with 540 observations.
Nov 5, 2020 · Habitat: Calcareous rocks such as limestone and dolomite. Elevation: 0–3000 m. Contents. 1 Distribution; 2 Discussion; 3 Selected References ...
The native range of this subspecies is N. America, Temp. & Subtropical Old World to NE. & E. Tropical Africa. It is a perennial or lithophyte and grows ...
Maidenhair Spleenwort is a small, delicate fern of cool, shady, forested cliffs and talus slopes. There are 2 subspecies: subsp. quadrivalens is found on ...
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