Key to the Pollen of the Bahamas©

Links to the keys.

Link to the Master Key Link to the Submaster Key to Rotational Grains Link to the Submaster Key to Porate Grains Link to the Submaster Key to Tricolpate Grains Link to the Submaster Key to Tricolporate Grains Link to the Key to Vesiculate Grains Link to the Key to Tetrad Grains Link to the Key to Polyad Grains Link to the Key to Bilaterally Symmetrical Grains and Spores Link to the Key to Inaperturate and Irregular Grains Link to the Key to Subtetrahedral Spores
Link to the Key to Stephanocolpate Grains Link to the Key to Pericolpate Grains Link to the Key to Monocolporate Grains Link to the Key to Polycolporate Grains Link to the Key to Tetracolporate Grains Link to the Key to Monocolpate Grains Link to the Key to Tricolpate, Psilate Grains Link to the Key to Tricolpate, Scabrate Grains Link to the Key to Tricolpate, Verrucate, Echinate Grains Link to the Key to Tricolpate, Suprareticulate Grains Link to the Key to Tricolpate, Per-reticulate Grains
Link to the Key to Tricolpate, Intectate Grains Link to the Key to Tricolporate, Psilate, Scabrate Grains Link to the Key to Tricolporate, Echinate Grains Link to the Key to Tricolporate, Foveate, Suprareticulate Grains Link to the Key to Tricolporate, Intectate, Per-reticulate Grains Link to the Key to Monoporate Grains Link to the Key to Diporate Grains Link to the Key to Triporate Grains Link to the Key to Stephanoporate Grains Link to the Key to Periporate Grains

Highlighted words are linked to their glossary definitions. Definitions and images contributed by the Glossary of Pollen and Spore Terminology,second and revised edition by Peter Hoen.


Table I3
Key to Tricolporate Foveate and Suprarareticulate Grains

A2 Grains large, 60-80 μM in largest dimension






B2 Coarse reticulationmuri wide with multiple rows of gemmate elements, lumens smooth, endopore a meridionally oriented slit, 80-84 μM

Caesalpinia bahamensis
Caesalpinia bahamensis images 400X

B1 Moderately tight reticulation of clavate elements, scattered clavae in lumens, 70-80 μM

Turnera
Turnera images
A1 Grains smaller






C2 Grains flattened triangular, syncolpate, colpi converge toward poles to isolate a triangular shaped area, oblate-spheroidal, 28 x 26 μM

Simarouba
Simarouba images

C1 Grains not triangular







D2 Grains hexagonal in equatorial limb with protruding aperturescolpus round, endopore a slit

Bursera
Bursera images



D1 Grains not hexagonal







E2 Grains with reticulation noticeably finer in polar area








F2 Colpus moderately wide with rounded ends









G2 Equatorial limb circular, endexine not obvious in furrows, edges of colpi sharply defined in low focus equatorial plane, 40 x 50 μM

Centrosema
Centrosema images  400X





G1 Equatorial limb triangular with rounded corners, apertures projecting slightly in middle of flat sides, coarsely reticulatefurrows wide with an obvious scabrate endexine, 38 x 34 μM

Caesalpinia bonduc
Caesalpinia bonduc images




F1 Colpi narrow slits tapering to acute ends









H2 Grains 50 x 62 μM

Scaevola sericia
Scaevola sericia images





H1 Grains 32 x 38 μM

Scaevola plumieri
Scaevola plumieri images



E1 Reticulation uniform or not obviously finer at poles








I2 Meridional limb a compressed oval, sides about parallel (barrel shaped), colpus a very narrow slit, 28 x 36 μM

Cajanus
Cajanus images




I1 Meridional limb not compressed









J2 Grains prolate










K2 Well defined reticulation with deep, small lumens, surface with a bumpy look in low focus profile, colpi long and narrow, (American football shaped) , 18 x 30 μM

Margaritaria
Margaritaria images






K1 Reticulation well defined but shallow with elements not resolvable, 18 x 24 μM

Galactia striata
Galactia striata images





J1 Grains spheroidal to subprolate, finely reticulategemmate-clavate elements of muri obvious in low focus, colpi open only at aperture giving grains a porate appearance, 26 x 36 μM but others spheroidal

Metopium
Metopium images


  To download the taxonomic key: link to download key   To return to  the introduction: link to introduction   For information on the included taxa: link to taxa and sources   For information on the glossary: link to glossary introduction