Polybotrya Humb. & Bonpl. ex Willd., Sp. Pl.
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publication ID |
https://doi.org/ 10.11646/phytotaxa.353.1.1 |
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persistent identifier |
https://treatment.plazi.org/id/03B087D5-FFAD-FFC8-E1F7-A011FCACF875 |
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treatment provided by |
Felipe |
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scientific name |
Polybotrya Humb. & Bonpl. ex Willd., Sp. Pl. |
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Polybotrya Humb. & Bonpl. ex Willd., Sp. Pl. View in CoL , ed. 4 [Willdenow], 5(1): 99. 1810.
Polybotrya View in CoL is characterized by long-creeping rhizomes; terrestrial root-climber habit (i.e., starting in soil, then growing up a tree trunk); circularly arranged meristeles, each meristele surrounded by a black sclerenchymatous sheath (best seen in cross-section); sterile-fertile leaf dimorphism, the fertile leaves with little or no green laminar tissue and shortlived; pubescent adaxial grooves on costae and rachises (often minutely so); and non-indusiate sori. In many species, the long-creeping rhizomes with abundant large, brown scales are distinctive. Lomariopsis View in CoL and Mickelia View in CoL are also terrestrial root-climbers and have leaf dimorphism, but both have conform blade apices. Polybotrya View in CoL is closely related to three other neotropical genera: Cyclodium View in CoL , Maxonia View in CoL , and Olfersia (Moran & Labiak, 2010) View in CoL ; two intergeneric hybrids are known with Cyclodium View in CoL in Brazil, each involving a cross of C. meniscioides View in CoL with different species of Polybotrya View in CoL ( Engels & Canestraro 2017, Schwartsburd et al. 2017). Polybotrya View in CoL is an entirely neotropical genus of about 35 species ( Moran 1987a, b). Our treatment follows Moran (1987a).
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