Adiantum latifolium (Introduced)

Adiantum latifolium Lam., Encycl. 1: 43 1783. (syn: Adiantum brasiliense Link; Adiantum denticulatum Sw.; Adiantum denticulatum var. humile Kuhn; Adiantum denticulatum var. obtusum Mett. ex Kuhn; Adiantum elatum Desv.; Adiantum fovearum Raddi; Adiantum fovearum var. major Rosenst.; Adiantum fovearum var. reductum Jenman; Adiantum glaziovii Baker; Adiantum intermedium var. medioximum Christ; Adiantum intermedium var. triangulatum (Kaulf.) T.Moore; Adiantum latifolium var. grisebachianum Domin; Adiantum lucidum var. bipinnatum Mett. ex E.Fourn.; Adiantum sordidum Lindm.; Adiantum triangulatum Kaulf.; Adiantum triangulatum var. acuminatum Jenman);
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S. Mexico to Tropical America: Argentina Northeast, Belize, Bolivia, Brazil North, Brazil Northeast, Brazil South, Brazil Southeast, Brazil West-Central, Central American Pac, Colombia, Costa Rica, Cuba, Ecuador, El Salvador, French Guiana, Guatemala, Guyana, Honduras, Jamaica, Leeward Is., Mexico Gulf, Mexico Southeast, Mexico Southwest, Nicaragua, Panamá, Paraguay, Peru, Puerto Rico, Suriname, Trinidad-Tobago, Venezuela, Windward Is.; Introduced into: Andaman Is., Bangladesh, India, Malaya, Nicobar Is., Sri Lanka, Thailand as per POWO;
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Fern for ID | 21Jun2010AR03 – efloraofindia | Google Groups:
Kind request to ID this Fern,
Fern growing in a farm well, water surface – about 30 feet below the ground level,
Leaf margin – tooth like
Agalpadi, , Kasaragodu, Kerala, 10 Aug 2008
The frogs are known as

1. Indian skitterring frog (sitting on the fern) – Euphlyctis cyanophlyctis (moves away from the shore when disturbed, )
2. Indian Pond frog, Distinct yellow line in its back 

Date/Time :	10 Aug 2008
Location- Place, altitude and GPS:	Agalpadi, Kasaragodu, Kerala
Habitat- garden/ urban/wild/type:	Farm,
Plant Habit-tree/shrub/climber/herb:	Fern, growing in a farm well, about 30 feet below the ground level. Under shady trees,
Height/length:	about  1-3 feet approx
Leaves-type/shape/size:	Alternate, 2.5cms, Leaf margin – tooth like
Inflorescence type /size:	–
Flowers-size/colour/calyx/bracts:	Non flowering (fern),

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A.latifolium

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Hope fully Adiantum latifolium ?
… kindly expand the abbreviation initially which will reduce confusion

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Nice photographs, but the second frog [Photograph 3] is the Indian Bullfrog [Hoplobatrachus tigerinus]. The white vertebral line on the back is normally present in many common species of Ranid frogs. Also seen in your photograph is the ridge-like tubercles on the back [not seen in the I.Pond Frog] & the broad white band on the side of the frog which separates the darker colour of the back from the unmarked white belly -. features of the Indian Bullfrog.

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ya, Adiantum latifolium

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Requesting a fern id.: 2 high res. images.
13/10/2021
IISER TVM campus adjoining Agasthyamalai biosphere reserve.
A flimsy-leaved fern found growing in the rubber estates. The stem appears dark brown-black. Neatly netted venetion seen.
Herb

This is the adventive South American species, Adiantum latifolium Lam., common throughout South India as a weed on roadside banks etc., but has not spread to north India.

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References:
POWO  Catalogue of Life  The Plant List Ver.1.1  Tropicos  IPNI