. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . Fig. 352. Tea {Camellia Thea). Leaf,natural size, (Moeller.) Fig. 353, Tea. Fragment of leaf treatedwith chloral hydrate, showing tooth, veins,crystal rosettes, and stone cells. Somewhatenlarged. (Schimper.) the base of the leaf tapers; the thick margins, rolled a little towardsthe inner surface, with cartilaginous teeth; the veins which branch fromthe midrib at angles usually greater than 45°, and at some distance fromthe margin form loops uniting adjoining ribs (Fig. 3
. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . Fig. 352. Tea {Camellia Thea). Leaf,natural size, (Moeller.) Fig. 353, Tea. Fragment of leaf treatedwith chloral hydrate, showing tooth, veins,crystal rosettes, and stone cells. Somewhatenlarged. (Schimper.) the base of the leaf tapers; the thick margins, rolled a little towardsthe inner surface, with cartilaginous teeth; the veins which branch fromthe midrib at angles usually greater than 45°, and at some distance fromthe margin form loops uniting adjoining ribs (Fig. 352). The teeth(Fig. 353) on the margin of the leaf are shrunken multicellular glandswhich break off readily from old leaves. Tea fruit (Fig. 354), consisting of the pericarp with calyx andpeduncle attached, resembles cloves. The pericarp is globular or trian-gular, and has three cells, each containing a single seed, HISTOLOGY. Microscopic mounts are prepared after soaking or boiling with Upper Epidermis (Fig. 355) consists of small (50 it) cells withslightly wavy walls, without stomata or hairs. 454 ALKALOID
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