Winton, Andrew Lincoln, 1864-1946, Moeller, Josef, 1848-1924 · New York, J. Wiley & sons; [etc., etc.] · leaf 53
istic cells with narrow radial ribs forming reticulations. 32 PRELIMINARY. Pollen Grains (Fig. 15) are mostly globular, rounded, or tetrahedral,either smooth or else covered with warts, bristles, or pits. They consistof single cells clothed with two membranes; the outer thick, forming akind of… … Fig. 16. Pollen Grains and Crystals of Cane-sugar irom Honey, a pollen grains of furze;b of heath; c of some composite flower. (Hassall.) out through clefts, or more commonly through pores, forming tubes whichpenetrate through the tissues of the stigma and style into the ovule, effect-ing…
Food adulteration and inspection · Plant anatomy · Microscopy
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