Instructions: Use the appropriate interactive key to identify each of the pictured specimens. You may change your answer any time by clicking on a specimen you have already identified.
Identify This Specimen
Species to IdentifyCheck Answers
Seed Key
Needle Key
Pollen Key
1.
Pollen has bladders (vesiculate)
Pollen has no bladders
2a.
Pollen is spherical/round or somewhat elongated in shape
Pollen is pyramidal (pear-shaped)
2b.
3.
Pollen has one pore (monoporate)
Gramineae/Poaceae/Grasses
Pollen has more than one pore
5.
7.
8.
Three pores are round and flat and on same face of pollen grain
Carya (hickory)
9.
Pollen has 4 or 5 pores
10.
11.
Pollen is tricolporate and the circular pore exceeds the width of the furrow
Fagus (beech)
Pollen is tricolporate, elongated and small
Castanea dentata (American chestnut)
12.
Connection between bladder and body is not constricted at point of attachment
Picea (spruce)
Connection between bladder and body is constricted
13.
14.