A New Vittarioid Fern Species, &lt;I&gt;Haplopteris heterophylla&lt;/I&gt; (Pteridaceae)

Chen, Christopher; Huang, Yao; Kuo, Li Chung; Chang, Yi Han; Liu, Yea Chen; Chiou, Wen Liang

doi:10.1600/036364413x674805

Cited by 11 publications

(5 citation statements)

References 19 publications

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“…Lindsay & Chen (2014) placed another species formerly treated in Monogramma in Haplopteris, noting that the type species of Monogramma had other affinities. Recent analyses focused attention on relationships within the two largest vittarioid genera-Haplopteris and Antrophyum (Chen & al., 2013a(Chen & al., , b, 2015. However, a well-sampled study of the overall vittarioid phylogeny, based on multiple molecular markers, has yet to be published.…”

Section: Version Of Recordmentioning

confidence: 99%

A revised generic classification of vittarioid ferns (Pteridaceae) based on molecular, micromorphological, and geographic data

Schuettpelz

Chen

Kessler

et al. 2016

TAXON

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Section: Version Of Recordmentioning

confidence: 99%

A revised generic classification of vittarioid ferns (Pteridaceae) based on molecular, micromorphological, and geographic data

Schuettpelz

Chen

Kessler

et al. 2016

TAXON

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“…& C.W.Chen. The obovoid paraphyses of this species are very diagnostic (funnel-shaped paraphyses are the norm in Haplopteris) and, as far as we know, similarly-shaped ones are only found in one other congeneric species, H. heterophylla C.W.Chen, Y.H.Chang & Yea C.Liu (Chen et al, 2013). Haplopteris heterophylla, however, differs from H. mindanaoensis by having sori in abaxial (rather than marginal) grooves.…”

Section: Discussionmentioning

confidence: 75%

"A new Haplopteris species from the Philippines and clarification of the status of H. amboinensis in China and Indochina"

Chen¹,

Lindsay²,

Mynssen³

et al. 2018

GBS

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is described and illustrated based on the results of detailed morphological comparison and molecular phylogenetic analysis. Morphologically, Haplopteris mindanaoensis is characterised by having obovoid (rather than funnel-shaped) soral paraphyses and deep soral grooves with asymmetrical flaps. Analysis of a combined four gene (chlL, matK, ndhF, and trnL-F) plastid data set shows that: (1) the two included samples of Haplopteris mindanaoensis have the same distinct haplotype; (2) Haplopteris mindanaoensis diverges early within the clade where most species with marginal soral grooves are placed; and (3) Haplopteris heterophylla C.W.Chen, Y.H.Chang & Yea C.Liu, the only other Haplopteris C.Presl species known to have obovoid paraphyses, is not closely related to H. mindanaoensis. The status of Haplopteris amboinensis (Fée) X.C.Zhang in China and Indochina is also clarified and a new combination, H. ensata (Christ) C.W.Chen & S.Linds. is made.

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“…1M). Chen et al (2013aChen et al ( , 2013b also used DNA bar coding to identify field-collected gametophytes to species, but they focused on vittarioid ferns in Taiwan. They found gametophytes of these three species growing at least 20 km away from the nearest known conspecific sporophytes and in different elevations or habitats than typically observed for the sporophytes.…”

Section: Pteridaceaementioning

confidence: 99%

The Separation of Generations: Biology and Biogeography of Long-Lived Sporophyteless Fern Gametophytes

Pinson

Chambers

Nitta

et al. 2017

International Journal of Plant Sciences

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Premise of research. Ferns (monilophytes) and lycophytes are unique among land plants in having two independent life stages: the gametophyte generation, which is generally small, cordiform, and short-lived, senescing after fertilization, and the sporophyte generation, which is considered the dominant, long-lived portion of the life cycle produced following fertilization. In many species of epiphytic ferns, however, the gametophyte generation is capable of sustained vegetative growth, and some are able to reproduce asexually via gemmae. These two characteristics have increased the independence of these gametophytes, so much so that some species never produce sporophytes at all, while other species produce sporophytes only in parts of their geographic range, a trend we term here the "separation of generations." Pivotal results. Long-lived fern gametophytes have evolved independently in several families and can be found around the world. We present a comprehensive review of the long-lived fern gametophytes that are able to forgo the production of a sporophyte, including accounts of their discovery, taxonomy, biology, ecology, and biogeography. We also present several hypotheses concerning why these species do not produce sporophytes, identify gaps in our knowledge about these organisms, and suggest areas of future study. Conclusions. While several populations of independent gametophytes have been identified and characterized in temperate regions, it is likely that the bulk of species with spatially separated generations occur in the tropics, where little work has been done. Additionally, virtually no studies have been undertaken that attempt to determine the underlying factors inhibiting sporophyte production in ferns. As 2017 marks the fiftieth anniversary of the first comprehensive study published on independent fern gametophytes, we can think of no better time for a review on their biology and an assessment of the work that still needs to be done.

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A New Vittarioid Fern Species, <I>Haplopteris heterophylla</I> (Pteridaceae)

Cited by 11 publications

References 19 publications

A revised generic classification of vittarioid ferns (Pteridaceae) based on molecular, micromorphological, and geographic data

A revised generic classification of vittarioid ferns (Pteridaceae) based on molecular, micromorphological, and geographic data

"A new Haplopteris species from the Philippines and clarification of the status of H. amboinensis in China and Indochina"

The Separation of Generations: Biology and Biogeography of Long-Lived Sporophyteless Fern Gametophytes

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