Figure 10 in Notes on morphological characteristics and life history strategy of the genus Acanthopsis Harv. (Acanthaceae)

Figure 10. SEM and stereomicroscope images of Acanthopsis seeds, showing appressed hygroscopic hairs when dry and uncoiled mucilaginous hairs upon wetting. A and B, appressed hairs of seed (dried state), A. dregeana subsp. longispina (Steyn 2141, PRE); C, seed with uncoiled hairs upon wetting, A. disperma (Steyn 1845, PRE); D, uncoiled hair showing helical thickening of walls, A. disperma (Steyn 1845, PRE); E, uncoiled hairs stained with safranin, A. disperma (Steyn 1845, PRE); F, seedling, A. hoffmannseggiana typical form (Steyn 2148, PRE). Scale bar: A = 300 µm, B = 80 µm, C= 1 mm, D = 30 µm, E. 50 µm, F = 2 mm.