Australian Tropical Ferns and Lycophytes - Online edition
4.5.3 Pinna or pinnule shape
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![](../../images/features/4_5.3_pinna_or_pinnule_shape/thumbs/char_4_5_3_lanceolate_sml.jpg)
This includes oblanceolate or spathulate (widest above the middle and tapering to the base) and oblong, lanceolate or elliptic (widest point at or below middle and tapering toward the apex).
![](../../images/features/4_5.3_pinna_or_pinnule_shape/thumbs/char_4_5_3_linear_sml.jpg)
Long and narrow, at least 10 times longer than wide.
![](../../images/features/4_5.3_pinna_or_pinnule_shape/thumbs/char_4_5_3_round_sml.jpg)
Round, fan-shaped or not as above.
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