Flora of the Hawaiian Islands
Literature for Adenophorus pinnatifidus
Palmer, 2003. Literature for Adenophorus pinnatifidus var. pinnatifidus
Palmer, 2003. Literature for Adenophorus pinnatifidus var. rockii
Palmer, 2003.
   Polypodiaceae Bibliography
      Adenophorus pinnatifidus
General Information
DistributionHawaiian Islands.In the Hawaiian Islands, endemic to Kaua`i, O`ahu, Moloka`i, Lana`i, Maui, Hawai`i.
Epiphytic or epipetric, small; rhizomes short, erect.
Fronds erect, arching, or pendulous, (2-)5-12+ cm long; stipe round at base, soon becoming winged and blending into blade; blade deeply pinnatifid to pinnatisect, ovate to lanceolate-ovate incised nearly to midrib, tips often elongate, marginal hairs absent to sparse; lobes close or distant, narrowly elongate-triangular, oblique, oblong, or linear, tips acute to broadly rounded, margins mostly entire, sometimes crenate on larger fronds, distal margins of lobes forming acute angles with midrib; veins pinnate in each segment except on smallest fronds.
Sori usually found on distal 2/3 of blade, solitary on smaller segments but present in 2, often irregular, rows on larger segments; glandular paraphyses present, sparse.
Latin pinnatus, winged, feathered, plus -fid, divided into many parts, describing the pinnatifid cutting of the frond.
Sally Eichhorn