Compilation
Argyrochosma microphylla

4 Images see all

Previous
Next

Name

Identification
Argyrochosma microphylla (Mett. ex Kuhn) Windham [family PTERIDACEAE ] (stored under name); Verified by Not on sheet, Pellaea intermedia Not on sheet [family PTERIDACEAE ] Verified by Not on sheet, Pellaea microphylla Mett. ex Kuhn [family PTERIDACEAE ] Verified by Not on sheet, Isotype of Pellaea microphylla Mett. ex Kuhn [family PTERIDACEAE ] Verified by Not on sheet, Pellaea intermedia Not on sheet [family PTERIDACEAE ] Verified by Not on sheet,
Related name
  • Pellaea microphylla
  • Argyrochosma microphylla
  • Pellaea intermedia

Flora

Entry for Argyrochosma microphylla (Mettenius ex Kuhn) Windham [family ADIANTACEAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 2,
Names
Argyrochosma microphylla (Mettenius ex Kuhn) Windham [family ADIANTACEAE], Amer. Fern J., 77: 40. 1987
Pellaea microphylla Mettenius ex Kuhn [family ADIANTACEAE], Linnaea, 36: 86. 1869
Cheilanthes parvifolia (R. M. Tryon) Mickel [family ADIANTACEAE]
Notholaena parvifolia R. M. Tryon [family ADIANTACEAE]
Treatment Author(s)
Michael D. Windham
Information
Stem scales brown. Leaves 7--25 cm. Petiole brown, 0.75--1.5 mm diam. Blade deltate to ovate, 3--4-pinnate proximally, leathery, abaxially and adaxially glabrous; rachis flattened or shallowly grooved adaxially. Pinna costae straight to somewhat flexuous, branches rarely arising from prominent angles. Ultimate segments articulate, dark color of stalks stopping abruptly at segment bases; segment margins recurved to revolute, often concealing sporangia; veins obscure adaxially. Sporangia submarginal, borne on distal 1/3 of secondary veins, containing 64 spores. 2 n = 54.
Phenology
Sporulating summer--fall
Altitude range
300--2100 m
Distribution
n Mexico.USA N.Mex.USA Tex.
Discussion
Argyrochosma microphylla is probably the most distinctive species of Argyrochosma in the flora. Chromosome studies by I. W. Knobloch et al. (1973) suggest that it may include diploid and tetraploid cytotypes.

Related Materials