Pseudolycopodiella Holub. Carolina Bog Clubmoss.
A genus of about 12 or more species, sub-cosmopolitan, but especially tropical and subtropical. This group has often been treated as section of Lycopodium (or of Lycopodiella); it appears to warrant status as a genus separate from Lycopodiella (Øllgaard, Kessler, & Smith 2018). In addition to the morphologic distinctions, the "Pseudolycopodiella group" has considerable anatomical differences, a different base chromosome number than Lycopodiella (x = 35 vs. x = 78), and does not hybridize with Lycopodiella (Wagner & Beitel 1992). Øllgaard in Kramer & Green (1990) and Wikström & Kenrick (2000) retained it as Lycopodiella section Carolinianae.
ID notes:In contrast to Lycopodiella species, Pseudolycopodiella caroliniana has prostrate shoots that are prominently dorsiventrally flattened (or "pseudodistichous"), with leaves wider -- 1.3-2.1 mm wide (vs. 0.5-1.2 mm wide) -- and with the widest point near the leaf midpoint (vs. widest at the base and tapering to tip).
Ref: Cook (2015); Haines (2003a); Kramer & Green (1990); Øllgaard In Kramer & Green (1990); Øllgaard, Kessler, & Smith (2018); Wagner & Beitel (1993) In Flora of North America Editorial Committee (1993b); Wikström & Kenrick (2000); Zhang & Iwatsuki in FoC (2013). Show full citations.
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© Bruce A. Sorrie | Pseudolycopodiella caroliniana | Original Image ⭷Feedback
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