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 F
Key to Inaperturate and Irregular Grains

A2 Grains irregular in shape





B2 Grains large, 120 μM in longest dimension, appear to be folded to roughly triangular shape, tectum perforatum with very closely spaced pits

Annona
Annona images 400X

B1 Grains smaller








C2 Grains coarsely reticulate, 1-sulcate, lumens 8 μM across, 60-80 μM *

Agava
Agava images 400X




C1 Grains psilate, scabrate or finely reticulate








D2 Grains scabrate or finely reticulate, surface elements resolvable at high magnification, not pear-shaped









E2 Grains with folded appearance, tightly reticulate with small clavate elements, lumens tiny, 40 x 56 μM

Tillandsia
Tillandsia images





E1 Grains appear collapsed, surface scabrate with tightly packed tiny clavae 3-colpateapertures narrow slits usually not resolvable, 56-70 μM

Melochia
Melochia images




D1 Grains psilate or pear shaped









F2 Grains approximately pear shaped or appear to be infolded spheres with the doubled edges of the folds thickened

Cyperaceae









G3 Grains folded spheres with no acute angles, psilate with slight texturing, 20 - 26 μM

Cyperus sp.
Cyperus images






G2 Grains approximately pear shaped, scabrate with uniform fine but obvious texture, 18 x 24 μM

Dichromena
Dichromena images







G1 Grains appear folded with an acute point, very thin, psilate, 40 x 46 μM

Cladium
Cladium images





F1 Grains a folded, rectangular box shape, psilate, thick walled, 8 x 10 μM, one unit of a polyad grain

Lysiloma
Lysiloma images

A1 Grains regular in shape






H2 Grains intectate, surface tightly packed with expanded clavate elements, spherical to flattened spherical in shape, 36-50 μM 

Croton sp.**
Croton images

H1 Grains striate-reticulate, irregular lines of gemmate elements, 16 μM

Phyllanthus
Phyllanthus images

* Note: The grains of the palms, Sabal and Cocos, appear irregular in many orientations and have psilate to scabrate surfaces. They are clearly 1-sulcate, see Table C.
* * Note: Croton discolor, Croton eluteria, Croton linearis, and Croton lucidus  pollen are not readily distinguishable


  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