Adiantopsis

• Authority

  Mickel, John T. & Smith, Alan R. 2004. The pteridophytes of Mexico. Mem. New York Bot. Gard. 88: 1-1054.

• Family

  Pteridaceae

• Scientific Name

  Adiantopsis

• Description

  Genus Description - Terrestrial; rhizomes erect to short-creeping, compact, scaly; fronds small to medium-sized; stipes atropurpureous, sulcate or adaxially flattened, with narrow, membranous, brown wings; blades 1–4-pinnate to pedate or digitate, generally 2–3-pinnate in Mexican species, essentially glabrous; veins free; sori marginal, short, several per segment; spores tetrahedral; x=30.

• Discussion

  Lectotype (chosen by C. Chr., Index Filic. XLI. 1906): Adiantopsis radiata (L.) Fe´e [Adiantum radiatum L.]. There are about seven species known from tropical America, but perhaps other species within Cheilanthes belong in Adiantopsis. Two species occur in Mexico. The group is only marginally distinct from Cheilanthes, being close to the C. microphylla group in its dark, sulcate axes, discrete sori, and echinate spores.