1. Stamens 2, Anticous, included; filaments filiform, inserted above base of corolla tube; anthers transverse, glabrous or hairy, thecae confluent; staminodes absent

2. Anthers typically consist of two compartments called thecae (singular theca), with each theca containing two microsporangia (the fusion product of which is a locule)

3. Anthers typically consist of two compartments called thecae (singular theca), with each theca containing two microsporangia (the fusion product of which is a locule)

4. Anthers (Figure 9.26) are discrete pollen containing units, found in the stamens of the great majority of angiosperms. Anthers typically consist of two compartments called thecae (singular theca), with each theca containing two microsporangia (the fusion product of which is a locule)