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Microgramma percussa; photograph (c) Fabrício Mil Homens Riella, some rights reserved (CC BY) CC BY(c) Fabrício Mil Homens Riella, some rights reserved (CC BY) · observed growing wild · 2024-03-16

Microgramma percussa (Cav.) de la Sota

Polypodiaceae · Mexico Gulf, Mexico Southwest +20 · listed by its family as a fern or moss

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Microgramma percussa, photograph (c) Thomaz de Carvalho Callado, some rights reserved (CC BY)Microgramma percussa, photograph (c) Thomaz de Carvalho Callado, some rights reserved (CC BY)Microgramma percussa, photograph (c) Thomaz de Carvalho Callado, some rights reserved (CC BY)Microgramma percussa, photograph (c) Paulo C. O. Cunha, some rights reserved (CC BY)Microgramma percussa, photograph (c) Paulo C. O. Cunha, some rights reserved (CC BY)Microgramma percussa, photograph (c) Nicolás Baresch Uribe, some rights reserved (CC BY) 33 photographs ›
Habitat figures
Cold floor (1 night in 100)
17.5°C
Record low 15.4 °C in 44 years, at a typical spot in the range NASA POWER
Warmest month, mean daily high
28°C
Mar, Apr and May at the habitat CHELSA
Rain a year (median across the range)
2,929mm
12 months of 25 mm or more in the median year CHELSA
Open-sky light
26–32DLI
Lowest to highest month (DLI) CHELSA
The year in the habitat's months, not shifted
  1. Jan
  2. Feb
  3. Mar
  4. Apr
  5. May
  6. Jun
  7. Jul
  8. Aug
  9. Sep
  10. Oct
  11. Nov
  12. Dec
Rain spread: 70% of the median year's rain takes 8 months, so no short rainy season. rain rule, CHELSA
Not shifted: the shift rule does not apply to this habitat. The chart is in the habitat's months.

Cultivation

Grouped as a fern or moss, listed under the family Polypodiaceae in the archetype table, and Kew describes it as “epiphyte”.

Seasons

The rain rule reads no short rainy season: 70% of the median year's rain (2,378 mm of 3,081 mm) takes 8 months, April to November. Mean temperature moves 2.1 °C between the warmest and coldest month. Months are the habitat's, northern hemisphere. The habitat lies within 10° of the equator, where the shift rule does not apply, so they are not shifted for a collection elsewhere.

Rain

3,081 mm in the median year at the habitat, 2,378 mm of it April to November. Wettest months (2 at 338 mm), driest month January at 147 mm. Across the grid cells of the range the year's total runs 1,743 mm to 5,709 mm, the 10th to 90th percentile of each cell's own year. The median of the cells' own yearly totals, 2,929 mm, is the year's rain at the top of the page; the 3,081 mm here is the median year's, the twelve monthly medians added, which the rain rule reads. Habitat calendar, northern hemisphere; median year across the grid cells of the range, CHELSA.

Light

Open sky over the habitat: 26 to 32 mol/m²/day across the year (daily light integral, median year across the grid cells of the range, CHELSA; the lowest 10th-percentile month across the cells is 20, the highest 90th-percentile month 40).

Warmth and air
Temperature

Coldest: the 1st-percentile night over 44 years at a typical spot in the range is 17.5 °C, the absolute minimum 15.4 °C, no frost in 44 years (NASA POWER daily minima). Warmest: the 99th-percentile day is 34.1 °C. Monthly means: the coldest month's mean nightly low 19.1 °C in January (across the grid cells of the range 12.1 °C to 23.2 °C), the warmest month's mean daily high 28.1 °C in April (median year across the grid cells of the range, CHELSA). Cold floor: 17.5 °C, which is the 1st-percentile night over 44 years at a typical spot in the range (NASA POWER).

Humidity

Relative humidity at the habitat: 67 to 70% across the year (monthly means, median year across the grid cells of the range, CHELSA). A figure about the air, saying nothing about how the plant takes water.

How this section is made

Each card states this species' habitat figures with their sources, and what two fixed rules read from them; nothing here says what the plant does, wants or tolerates. The rules · the terms.

Seasons. Read from the median year of CHELSA monthly rainfall and mean temperature across the grid cells of the range: the rain rule takes the smallest set of months carrying 70% of the rain and calls it winter when its mean is more than half a degree below the year's, summer when more than that above, and neither in between; the temperature rule, used only under 120 mm, names the cooler six months when they are at least a degree cooler than the other six. Months are shifted for the other hemisphere only where the temperature curve moves 4 °C or more and the habitat lies 10° or more from the equator. A reading of the curves, not an observation of the plant.

Rain. CHELSA monthly precipitation, median year across the grid cells of the range. The rain that falls where the species is recorded; nothing about how the plant takes water.

Light. CHELSA shortwave radiation at each envelope cell, a daily-mean flux taken to a daily total and converted at 2.07 mol of PAR per MJ. The sky over the habitat, measured; what reaches a plant under a rock, a shrub or a shade cloth is not.

Temperature. NASA POWER daily minima and maxima over 44 years at a typical spot in the range, lapse-corrected +322 m to its elevation; CHELSA monthly means, median year across the grid cells of the range. The cold floor is the 1st-percentile night named in its sentence. Not a measured survival limit for any plant in a pot.

Humidity. CHELSA relative humidity, median year across the grid cells of the range.

Group. Listed under the family Polypodiaceae in the archetype table, and Kew describes it as “epiphyte”. A group is taken only where Kew's description of the species agrees with the table's listing. The table gives no figure and no prose; the cold floor is the habitat's alone.

Climate across the habitat

Habitat months, northern hemisphere

Habitat climate of Microgramma percussa through the yearWarmest months March, April and May, mean daily high 28 °C; coldest month January, mean nightly low 19.1 °C; 3,081 mm of rain in the median year (the twelve monthly medians added). Medians across the range, from CHELSA; the extremes at the edge from NASA POWER. Habitat months, northern hemisphere.10°15°20°25°30°35°40°34.1° 99th-percentile day, NASA POWER15.4° lowest night in 44 years, NASA POWER°C · day and nightcold quarter0200400600800mm rainDLI 26–32RH 67–70%JanFebMarAprMayJunJulAugSepOctNovDec
day night rain medians and 10th–90th percentile across 171 habitat cells, CHELSA cold quarter: the three months around the coldest month's mean nightly low extremes over 44 years at a typical spot in the range, from NASA POWER, marked at the edge, in no month DLI, mol/m²/dayRH %each on its own scale
Figures by month
JanFebMarAprMayJunJulAugSepOctNovDec
Day °C26 / 20–2927 / 20–2928 / 21–3028 / 20–3028 / 20–3027 / 20–2927 / 20–2927 / 20–3027 / 20–3127 / 20–3026 / 19–3026 / 20–30
Night °C19 / 12–2319 / 13–2320 / 13–2321 / 14–2422 / 14–2321 / 13–2321 / 13–2321 / 13–2321 / 13–2321 / 13–2320 / 13–2319 / 13–24
Rain mm147 / 53–390164 / 67–334210 / 57–394295 / 72–511338 / 147–595338 / 115–548295 / 86–569263 / 83–612287 / 78–580300 / 84–583262 / 97–552182 / 111–455
DLI29 / 22–3430 / 25–3531 / 26–3728 / 23–4027 / 21–3926 / 20–3528 / 20–3730 / 21–3732 / 21–3929 / 21–3727 / 20–3429 / 21–32
RH %67 / 62–7367 / 61–7268 / 60–7270 / 60–7470 / 62–7470 / 65–7469 / 63–7469 / 63–7469 / 63–7470 / 63–7570 / 64–7569 / 64–73

Records on both sides of the equator: the 15 cells at least 10° south of it have seasons six months apart and are left out, not combined into a year no place has. These figures are across the 171 cells that remain: the 37 at least 10° north and the 134 within 10° of the equator, which stay in either way.

How this section is made
Each figure is the median across the 171 grid cells holding the 197 in-range records, with the 10th–90th percentile span across those cells after the slash where it differs. A dash is a month one or more of those cells has no figure for in the grid (a variable CHELSA does not carry there), so no median is taken rather than one over fewer cells. Extremes and elevation were read at a typical spot in the range, cell 1654:2098 (7.275, -75.075). Over 44 years there: absolute minimum 15.4 °C, 1st-percentile night 17.5 °C, 99th-percentile day 34.1 °C. Normals: CHELSA V2.1 1981–2010 climatology, 0.05° cells (each the mean of ~36 1 km pixels). Across the range: median and 10th–90th percentile of each month across the 171 distinct grid cells holding 197 of the 213 in-range records on the northern side of the equator (37 cells poleward of 10° north, 15 poleward of 10° south: the two sides' seasons are not combined, and cells within 10° of the equator stay in); extremes and elevation at the typical cell 1654:2098 (its coldest month's mean nightly low nearest the median across cells); its position is the cell centre. Extremes: NASA POWER (MERRA-2) daily 1981–2024, cell 7.50_-75.000, lapse-corrected +322 m at 6.5 °C/km. Elevation: ETOPO 2022, 718 m (cell mean).

Natural habitat

Native range as published by WCVP; the marker is where the records are densest and decides nothing: the climate was read across the cells of the in-range records placed well enough to read one, not at the marker.
Openly licensed records inside the range, framed on where they fall.
NativeMexico Gulf, Mexico Southwest, Mexico Southeast, Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Panama, French Guiana, Guyana, Surinam, Venezuela, Bolivia, Colombia, Ecuador, Peru, Brazil West-Central, Brazil Northeast, Brazil Southeast, Brazil North, Brazil South · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Map marker8.731, -83.472 · in the densest population, 356 records (26% of those in range)
Kew's description“epiphyte” · “wet tropical” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedThe map marker rests on all 1351 georeferenced records inside the native range; the climate across the range on the 197 of them in the land cells it reads, of 213 placed to within 10 km; the map shows only the 1196 openly licensed ones, which alone would put the marker 757 km away. 18 records outside the WCVP native range not used. 1138 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay on the map but off the climate.
Other GBIF keysRecords also from GBIF's key 11278786 (Microgramma percussa (Cav.) DeLaSota): Kew's file holds it as Microgramma percussa (Cav.) de la Sota (accepted); 0 records, from GBIF's search API on the day of the build.
How this section is made
The map marker: the openly licensed record nearest the middle of the densest 1° population inside the densest 4° block of the 1351 in-range records; it decides nothing. Records outside the native range, living specimens and records marked introduced are not used; which records count.

Photographs

Microgramma percussa, photograph 1did not loadMicrogramma percussa, photograph 2did not loadMicrogramma percussa, photograph 3did not loadMicrogramma percussa, photograph 4did not loadMicrogramma percussa, photograph 5did not loadMicrogramma percussa, photograph 6did not load

Photographs: (c) Thomaz de Carvalho Callado, some rights reserved (CC BY) (3); (c) Paulo C. O. Cunha, some rights reserved (CC BY) (2); (c) Nicolás Baresch Uribe, some rights reserved (CC BY).

Similar habitat climate The 6 nearest by mean daily high, mean nightly low and rain, month by month. How.

Geonoma interrupta Geonoma interrupta Monkeytail Shadowpalm Photo: CC BY, Eleazar Pérez TrujilloPassiflora menispermifolia Passiflora menispermifolia Passifloraceae Photo: CC BY, Chase MatheyLacistema aggregatum Lacistema aggregatum Lacistemataceae Photo: CC0, author not statedSolanum mammosum Solanum mammosum Nipplefruit Photo: CC0, author not statedRenealmia alpinia Renealmia alpinia Jenjibre-de-jardin Photo: CC0, author not statedScaphyglottis prolifera Scaphyglottis prolifera Orchidaceae Photo: CC BY, Letizia Weichgrebe

Other Microgramma 8 in the reference

Microgramma heterophylla Microgramma heterophylla Clinging snakefern Photo: CC BY-SA, Kurt MillerMicrogramma lycopodioides Microgramma lycopodioides Clubmoss snakefern Photo: CC BY, portioidMicrogramma mortoniana Microgramma mortoniana Polypodiaceae Photo: CC0, author not statedMicrogramma piloselloides Microgramma piloselloides Hairy snakefern Photo: CC BY, Matteo BellucciMicrogramma reptans Microgramma reptans Polypodiaceae Photo: CC BY-SA, KATELL UGUENMicrogramma squamulosa Microgramma squamulosa Polypodiaceae Photo: CC BY, Paulo NogueiraMicrogramma tecta Microgramma tecta Polypodiaceae Photo: CC BY, Alan RockefellerMicrogramma vacciniifolia Microgramma vacciniifolia Polypodiaceae Photo: CC BY, Alex Popovkin, Bahia, Brazil

Names & registers

Also known as Drynaria percussa; Lepicystis percussa; Niphobolus percussus; Phlebodium percussum; Pleopeltis cuspidata and 8 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataiNaturalist

The record

Family
Polypodiaceae
Described by
(Cav.) de la Sota
Native to
Mexico Gulf, Mexico Southwest, Mexico Southeast +19
Wild records
1351 in range · 1196 open

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredasked 2026-10-22GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 0 records of GBIF's key 11278786, Microgramma percussa (Cav.) DeLaSota (Kew's file holds it as Microgramma percussa (Cav.) de la Sota (accepted)): GBIF occurrence search API; 2 records within 1 km of a botanic garden, herbarium or zoo left out (1 at a botanic garden or arboretum, 1 at a zoo; Wikidata's list)
Habitat climate climate answeredasked 2026-10-22
Daily extremes (NASA POWER) climate.extremes answeredasked 2026-10-22NASA POWER (MERRA-2) daily 1981–2024, cell 7.50_-75.000, lapse-corrected +322 m at 6.5 °C/km
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia nothing to reportasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22none of the photographs on this page is credited to GBIF: those shown are other sources', and GBIF's were the same photographs or were set aside by the photograph rules
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 135 datasets via GBIF.org; each carries its own licence.

Cultifolio

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