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"A, depressed stoma of the under side of a leaf of Amherstia nobilis." -Stevens, 1916

Depressed Stoma

"A, depressed stoma of the under side of a leaf of Amherstia nobilis." -Stevens, 1916

"B, depressed stoma of Hakea suaveolens. g stands beneath the guard cells; d, outer, and e inner, cavities." -Stevens, 1916

Depressed Stoma

"B, depressed stoma of Hakea suaveolens. g stands beneath the guard cells; d, outer, and e inner, cavities."…