atrium

From Latin ātrium (“entry hall”), from Etruscan.

Nexine 0.5μ thick, separating from the sexine about 5μ from the pore and forming a deep, well-defined atrium.

1965, Janet Kircher Warter, Palynology of a Lignite of Lower Eocene (Wilcox) Age from Kemper County, page 52:

(palynology) A cavity inside a porate aperture of a pollen grain formed by the separation of the sexine and nexine layers, widening toward the interior of the grain.


ulcerate

en-adj

ulcerate (comparative more ulcerate, superlative most ulcerate)

more ulcerate (comparative)
most ulcerate (superlative)

(palynology, of a pollen grain) Having an ulcus, a rounded pore-like aperture, at one or both poles.


ulcus

From Latin ulcus (“sore”). Doublet of ulcer.

(palynology) A rounded, pore-like aperture at either pole of a pollen grain.


aspis

As might be expected, characters of the aspides themselves are not of much value in pollen identification, but they are easily recognized and many three-pored, aspidate grains are broadly categorized as "betuloid" in studies of airborne pollen.

1974, Eugene Cecil Ogden, Manual for Sampling Airborne Pollen, →ISBN, page 128:

(palynology) A prominent ring of thickened exine around a pore on a pollen grain


monotreme

Nomotreme fern and moss spores are monotreme.

1952, G. Erdtman, Pollen Morphology and Plant Taxonomy, published 1986, →ISBN, page 548:

(palynology, of a pollen grain) Having a single trema, or aperture.


tricolpate

The pollen grains are tricolpate to tricolporoidate.

Tricolpate pollen, the signature of eudicots, first appears ca. 110 million years ago.

(botany, palynology, of a pollen) Having three grooves, or colpi, on each grain.


arcus

Borrowed from Latin arcus. Doublet of arc and arco. Distantly related to arrow.

(palynology) An arc-shaped band of thickened sexine extending between two apertures on a pollen grain or spore


murus

(palynology) A pattern-forming ridge on the surface of a pollen grain.


pollinium

(palynology) A coherent mass of pollen, as in the milkweed and most orchids, which is dispersed as a single unit during pollination.

polyad

any group of more than four pollen grains


cappa

Learned borrowing from Late Latin cappa. Doublet of capa and cape.

(palynology) The thick wall on the proximal side of the corpus of a pollen grain.


exine

From German Exine, from Latin ex- + German -ine.

(botany, palynology) The outer layer of a pollen grain or spore; the exosporium.


intine

(botany, palynology) The innermost wall of a spore or pollen grain


auricula

en-noun

auricula (plural auriculae or auriculas)

Unadapted borrowing from Latin auricula (“external ear; ear”). Doublet of auricle.

ubor

(palynology) A pronounced thickening at the corner of a trilete spore, beyond the end of the laesura.


columella

en-noun

columella (plural columellas or columellae)

/ˌkɒləˈmɛlə/

(palynology) A rod-shaped reinforcing element of the sexine layer of a pollen grain.


amb

This genus is distinguished from Duplopollis Krutzsch, 1959a, and Cupanieidites Cookson and Pike, 1954, by being syncolpate rather than syncolporate and by the islands at the angles of the amb.

1970, Robert Max Kosanke, editor, Symposium on Palynology of the Late Cretaceous and Early Tertiary:

(palynology) The outline of a spore or pollen grain, as seen in a polar view.


colpus

From Late Latin colpus (“stroke; strike; hit”), from earlier Latin colaphus. Doublet of coup.

der

(botany, palynology) A groove sometimes occurring on grains of pollen


colpate

en-adj

colpate (comparative more colpate, superlative most colpate)

more colpate (comparative)
most colpate (superlative)

From colpus + -ate (adjective-forming suffix).

af

(palynology, of pollen) Having one or more colpi, or grooves, on each pollen grain.


acritarch

/ˈækɹɪtɑː(ɹ)k/

From Ancient Greek ἄκριτος (ákritos, “doubtful, indistinguishable”) + -arch.

der

Acritarchs represent some of the earliest evidence of life on Earth.

2018, Mark Carnall, “Unidentifiable fossils: palaeontological problematica”, in The Guardian:

(paleontology, palynology) Any small, non-acid-soluble (i.e. non-carbonate, non-siliceous) organic fossil that cannot be classified.


fastigiate

en-adj

fastigiate (comparative more fastigiate, superlative most fastigiate)

more fastigiate (comparative)
most fastigiate (superlative)

From New Latin fastīgiātus (“peaked”) (from fastīgium), see -ate (adjective-forming suffix).

The grains are 3-colporate and fastigiate.

(palynology) Characterized by a fastigium, a cavity separating the intexine from the sexine near the endoaperture of a colporate pollen grain.


abporal

abporal (comparative more abporal, superlative most abporal)

more abporal (comparative)
most abporal (superlative)

From ab- + poral. First defined by the palynologist Roger Philip Wodehouse in 1928.

(palynology) Located to the side of an ectoaperture such as a pore. Typically used in reference to an abporal lacuna or hemisphere.


acalymmate

When loosely associated, each tetrad retains most of its outer exine layer, leading to calymmate tetrads, but an acalymmate massula (since the exine is not continuous around each massula […]).

1996, John V. Freudenstein, Finn N. Rasmussen, “Sectile Pollinia and Relationships in the Orchideaceae”, in Plant Systematics and Evolution, volume 205, →DOI, pages 125–146:

(palynology) Forming clusters of pollen grains (usually tetrads or polyads) in which the sexines of the respective grains do not merge to form a continuous sheath.


polliniate

From pollinium + -ate (adjective-forming suffix).

af

This is a polliniate orchid.

(botany, palynology) Forming pollinia, coherent masses of pollen dispersed as a single unit.


pollinial

en-adj

pollinial (comparative more pollinial, superlative most pollinial)

more pollinial (comparative)
most pollinial (superlative)

The pollinial mass will attach to the insect's leg.

(palynology) Of or pertaining to a pollinium, or large coherent mass of pollen grains.


alete

(palynology) Forming single spores or pollen grains, and therefore lacking laesurae


anacolpate

(palynology) Having a colpus, or groove, on the distal face of a pollen grain.

anacolpado

of a pollen grain: having a colpus on the distal face


analept

(palynology) Having a leptoma, a thin area, near the distal pole of a pollen grain


-lept

(palynology) Having pollen grains with one or more leptomata, thin edges near the pole


leptoma

Possibly from Ancient Greek λέπτος (léptos, “delicate”)

uder

(palynology) A thin-walled area on a pollen grain


anatreme

(palynology, of a pollen grain) Having a single aperture on the distal face


anaporate

(palynology, of a pollen grain) Having a pore on the distal face


angulaperturate

Acicarpha, Calycera, and Nastanthus have angulaperturate grains.

1952, Gunnar Erdtman, Pollen Morphology and Plant Taxonomy, published 1986, →ISBN, page 90:

(palynology) Having apertures at the corners of an angular amb

anguloaperturado

having apertures at the corners of an angular amb


aperturate

(palynology, of a pollen grain) Having one or more apertures


sexine

(palynology) The outer part of the exine, the outer covering of a pollen grain


angustimurate

(palynology, of a pollen grain) Having relatively narrow muri, not exceeding 20% of the diameter of the lumina


anomotreme

This idea arose in view of the anomotreme pollen-grains studded with apertures.

1988, Subhash Chandra Datta, Systematic Botany, →ISBN, page 71:


aperture membrane

en-noun

aperture membrane (plural aperture membranes)

In germinating grains the aperture membrane is pushed open like a lid.

1952, Gunnar Erdtman, Pollen Morphology and Plant Taxonomy, →ISBN, page 466:

(palynology) Section of exine forming the base of an aperture


apocolpium

The apocolpia (one at the proximal, the other at the distal pole) comprise the rest of the (non-apertural) surface.

1952, Gunnar Erdtman, Pollen Morphology and Plant Taxonomy, published 1986, →ISBN, page 14:

(palynology) The region near the pole of some pollen grains which is bounded by the lines connected the colpal apices.


massula

(palynology) A union of pollen microspores.


bacule

Atyug (1971) pointed out that the pollen of S. compacta have prominent bacules. The present electron microscopic study, however reveals that those protuberences are spinules and not bacules.

1998, Journal of Palynology, volume 34, numbers 1-4, page 5:

(palynology) A rod-like element on the surface of some pollen.


isopoll

Isopoll maps can be reinterpreted to show the migration of a particular genus or ecotone through time by isochrones (equal time lines).

2013, Raymond S. Bradley, Paleoclimatology: Reconstructing Climates of the Quaternary, page 420:

(palynology) A line on a map showing places having the same amounts of a particular pollen.


bicolpate

(botany, palynology, of a pollen) Having two grooves, or colpi, on each grain.


colporate

en-adj

colporate (comparative more colporate, superlative most colporate)

more colporate (comparative)
most colporate (superlative)

From colpus + pore + -ate (adjective-forming suffix).

af

Durio graveolens pollen is colporate

(palynology, of a pollen grain) Having apertures which combine a rounded pore and a colpus, or groove.


zonotreme

(palynology) Having apertures on the equator of the grain.


tectate

(botany, palynology) Having a tectum (a sculptured outer layer).


apocolpial

From apocolpium + -al; apo- + colpi + -al.

(palynology) Relating to a region bounded by colpi.


pantoporate

(botany, palynology) Having six or more round holes arranged around the surface.


intectate

(botany, palynology) Having a sculptured surface but no tectum (of pollen).


dicolpate

The pollen grains are dicolpate.


tetracolpate

The pollen grains are tetracolpate.

(botany, palynology, of a pollen) Having four grooves, or colpi, on each grain.


pantocolpate

(botany, palynology, of pollen) Having grooves, or colpi, all over each grain.


intexine

intexines (plural)
endexine (alternative)
intextine (alternative)

(botany, palynology) The inner membrane when two exist in the exine.