nomenclatorial act:
protologue/first publication
Page:
639
diagnosis:
Irregularly branched plants with helically arranged leaves, bracts, and sporophylls; smaller leaves simple, larger leaves forked. Leaf cushions absent; bud scales absent; Endarch eustele with dense wood; leaves with two adaxial stomatiferous bands flanking inflated midrib; marginal and surficial trichomes present. Stomata longitudinally oriented, solitary or arranged in longitudinal rows; stomatal complexes with ring of angular papillate subsidiary cells, polar subsidiary cells elongated. Microsporangiate sporophylls with forked tip; prepollen monolete. Ovulate fructifications compact, growing through to form vegetative zone distally; ovules with rounded micropilar end.
systematic position:
Spermatopsida, order indet., Bartheliaceae
typeseries:
Barthelia furcata Rothwell & Mapes, 2001
Classification:
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