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 H
Submaster Key to Tricolpate Grains

A2 Tectate grains
Those with a more or less complete covering layer of the grain


B5 Psilate grains
Those with a smooth surface with essentially no projections Some grains in this category will look glassy smooth, others will have a slightly grainy appearance.
Table H2
Key to Tricolpate Psilate Grains

B4 Scabrate grains
Those with no surface projection exceeding 1 μM.  These grains have a definite surface texturing but the elements are at or below the limits of resolution
Table H3
Key to Tricolpate Scabrate Grains

B3 Verrucate and echinate grains
Grains with distinctive spines or with radial projects of greater diameter than height.
Table H4
Key to Tricolpate Verrucate Echinate Grains

B2 Suprareticulate grains
Grains with a clear reticulation pattern of muri, ridges, and lumens where the 
muri are smoothly covered and not rows of projecting surface elements. Spines may occur on top of the muri.
Table H5
Key to Tricolpate Suprareticulate Grains
A1 Semitectate or intectate grains
Those with the covering layer of the grain missing wholly or in large part.


C2 Per-reticulate grains
Grains where the 
reticulation pattern is due to muri composed of rows of individual surface elements.
Table H6
Key to Tricolpate Per-reticulate Grains

C1 Intectate grains
Grains in this category are more or less uniformly covered with surface elements that are larger than 1 μM with no pattern of 
muri and lumens. The shape of the elements is most readily observable by looking at a low focus section of the wall of the grain.
Table H7
Key to Tricolpate Intectate Grains
Note: In practice it can be difficult to decide if a grain is tectate or intectate if the surface elements are small, about 1 μM in largest dimension, or if the grain per se is small. It may be necessary to run a grain through Tables H3 and H7 for identification.


  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