Discovery of the World’s Smallest Terrestrial Pteridophyte

Patel, Mitesh; Reddy, M. N.

doi:10.1038/s41598-018-24135-2

Cited by 15 publications

(6 citation statements)

References 24 publications

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“…Various researchers have explored the fern flora in the Western Ghats also [23,24,25,26]. The smallest fern of the earth, Ophioglossum malviae was a recent discovery from the northern parts of Western Ghats [27]. Most of the ferns are under threat due to habitat destruction and climate change.…”

Section: Introductionmentioning

confidence: 99%

Diversity of Pteridophyte Flora in Rajamala, Eravikulam National Park, Kerala, India

Arjun

Antony

Ali

et al. 2021

AJEE

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Aims: To enumerate the fern diversity in the disturbed landscapes of Rajamala part of Eravikulam National Park, Western Ghats Study Design: Purposive sampling method was adopted in the study area and habitats suitable for ferns were surveyed. Place and Duration of Study: The study area is Rajamala, a tourist impacted site inside Eravikulam National Park in Kerala, India. Intensive field explorations were carried out in this area during February 2018- April 2019, to document the ferns and fern-allies. Methodology: A preliminary study was conducted in February 2018 to identify the probable habitats of ferns for further detailed study. Purposive sampling was done in the study area considering the most suitable habitats in both shola ecosystems and grassland ecosystems of the area. Materials for herbaria were processed using standard methods. The collected plants were identified with the help of standard field guides and flora. The potential medicinally important ferns were also listed out. Results: 54 species of pteridophytes including fern and fern allies belonging to sixteen different families were found from the Rajamala region of Eravikulam National Park. Aspleniaceae was the most common family with 11 species followed by Polypodiaceae. The majority of the Pteridophytes found in the region are showing terrestrial habit. Eleven species found in the study site are medicinally important. Conclusion: Despite the high tourism pressure in the study area, pteridophyte species richness is higher in the Rajamala region of Western Ghats. The suitable habitat with ideal substrate conditions and year-long moisture availability in the substrates could be the reason for a higher number of pteridophyte species in this area.

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Section: Introductionmentioning

confidence: 99%

Diversity of Pteridophyte Flora in Rajamala, Eravikulam National Park, Kerala, India

Arjun

Antony

Ali

et al. 2021

AJEE

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“…Despite high species diversity, the floristic diversity of Gujarat remains insufficiently explored. The discovery of a new species presented here, as well as other recent additions of flowering and non‐flowering plants from Gujarat (Patel and Reddy , b, c, d, e, Patel et al 2018), indicate that dedicated surveys across the state may yield additional discoveries. Moreover, the taxonomy of Indian Crinum remains largely unattended and is in need of a revision considering both molecular and morphological data.…”

Section: Discussionmentioning

confidence: 52%

Crinum reddyi sp. nov. (Amaryllidaceae) from Gujarat, India

Patel

2019

Nordic Journal of Botany

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We here describe a new species of Crinum (Amaryllidaceae) from marshy areas along the Gira river, southern Gujarat, India. It superficially resembles C. solapurense but differs in having spherical or round, cremish white, tunicate bulbs, 10–17 distichous to sub distichous, canaliculated leaves, shorter, yellowish green peduncles (35–60 cm long), fewer flowers (up to 16), 6–12 capsules per infructscence, 4–7, chlorophyllous, rugose seeds per capsule and mainly vegetative propagation.

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“…Owing to significant variation among species in stomatal features particularly the stomatal shape, shape and ornamentation of inner margin of outer stomatal ledge, they have been used taxonomically by the earlier workers 38 in separating the complex taxa of Dryopteridaceae in pteridophyta. Epidermal features and mesophyll characteristics have also been suggested by various researchers as supporting evidences in differentiating some species of genus Ophioglossum 17 , 22 . Outer stomatal ledges prevent wide opening of the stomatal pore and its lifting above leaf epidermis 39 .…”

Section: Discussionmentioning

confidence: 86%

Discovery of a new species of Adder’s tongue fern from India with comparative analysis of morphological and molecular attributes

Yadav

Meghvansi

Meena³

et al. 2021

Sci Rep

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Eusporangiate fern genus Ophioglossum L. is commonly known as Adder’s tongue fern as its fertile frond gives the appearance of snake tongue. A new species in this fern genus, O. trilokinathii belonging to Ophioglossaceae family has been discovered from the plateau region of Rajasthan State of northwestern India. The new species can be distinguished from other taxa of this genus by its smaller habit, subglobose-tuberous rhizome, basipetal emergence of young roots, aggregation of old decaying roots on rhizome apex, fertile stalk as well as spike short and thick, trophophylls in rosette, ovate or orbicular and a unique sporoderm sculpture pattern under SEM having broad reticulations with thick and raised muri enclosing large hexagonal or irregular areas on the distal and proximal faces of the spores hitherto unreported in any of the presently known taxa of Ophioglossum. In addition, comparative study of stomatal structure, foliar anatomy and nucleotide sequence data of its three chloroplast DNA markers (trnL-F, rbcL and psbA-trnH) was carried out. In view of all the attributes including habitat, ecology, morphology, foliar anatomy, stomatal features, palynology and molecular phylogenetic data, the present study suggests that the Ophioglossum specimen collected from plateau region of Rajasthan represents a hitherto undescribed species thereby warranting its establishment as O. trilokinathii sp. nov. A detailed comparative account of the new taxon with its allied species has also been provided.

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Discovery of the World’s Smallest Terrestrial Pteridophyte

Cited by 15 publications

References 24 publications

Diversity of Pteridophyte Flora in Rajamala, Eravikulam National Park, Kerala, India

Diversity of Pteridophyte Flora in Rajamala, Eravikulam National Park, Kerala, India

Crinum reddyi sp. nov. (Amaryllidaceae) from Gujarat, India

Discovery of a new species of Adder’s tongue fern from India with comparative analysis of morphological and molecular attributes

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