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Humidophila pantropica differs from other species of Humidophila by its greater length and prominent subterminal nodules.

LM scalebar = 10 µm
Humidophila pantropica LM4 D Pantropica Humidophila pantropica LM2 Humidophila pantropica LM5 Humidophila pantropica LM3 Humidophila pantropica LM6 Humidophila pantropica LM1
Length Range
16.1-21.3 µm
Width Range
2.9-3.3 µm
Striae in 10 µm
26-28

Humidophila contenta

(Grunow) Lowe et al. 2014

Humidophila contenta LM1 Humidophila contenta LM3 Denewcas63 Housecreek23 Humidophila contenta LM5 Denewcas3B
Length Range
6.0-12.1 µm
Width Range
2.4-2.6 µm
Striae in 10 µm
36-38