. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . ch John the Baptist subsisted while in the wildernesswere respectively the seeds and pods of this same bean, hence the nameSt. Johns bread. Throughout the countries bordering on the Mediterranean the carobtree is cultivated and the pods are used as food for the poorer classesand cattle, also for the preparation of drugs, sirups, alcoholic liquors,etc. In Germany they are eaten by children as confectionery. The several-seeded fruit is 10-20 cm. long, 2-3 cm. broad, 5-10 m
. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . ch John the Baptist subsisted while in the wildernesswere respectively the seeds and pods of this same bean, hence the nameSt. Johns bread. Throughout the countries bordering on the Mediterranean the carobtree is cultivated and the pods are used as food for the poorer classesand cattle, also for the preparation of drugs, sirups, alcoholic liquors,etc. In Germany they are eaten by children as confectionery. The several-seeded fruit is 10-20 cm. long, 2-3 cm. broad, 5-10 mm. 278 LEGUMES. thick, and has several cells with a coriaceous lining (endocarj)), eachcontaining a flattened, obovate seed 8-10 mm. long of a dark wine either side of the furrowed sutures the pods are swollen, and withineach ofthe four swollen portions occurs a row of cavities, which arereadily seen in longitudinal section. HISTOLOGY Pericarp (Fig. 227). Although this fruit is similar in structure toother legumes, several of the tissues have individual characteristics whichallow of their ready Fig. 227. Carob Bean {Ccratonui Siliqua). Elements of pericarp in surface vie%y. f/>epicarp with 5 stoma; r/> brown hypodcrm; 6 bast fibers; nic mcsocarp with 2 wrinkledlx)dies. Xi6o. (MoELLER.) 1. Epidermis (ep). Of the several layers of cells with dark-browncontents which together form the leather} outer portion of the pod, theoutermost consists of polygonal cells (12-30 //) and stomata, witli cuticu-larizcd outer walls. 2. The Hypodcrmal Layer (rp), often 120 }i thick, is made up of6-10 layers of tabular parenchyma cells, which, in surface view, arerounded. They are filled with brown contents like that in the epicarp. 3. FihrOVascular Bundles. The bast fibers {h) form a nearly unin-terrupted layer. They are accom|)anitd by cr>-stal-fibers {k), each con-taining a single crystal, and stone cc-lls Cs7). I-\irtluT iiiwanl an thephloem and xylem, the latt
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Keywords: ., bookcentury1900, bookdecade1910, bookpub, booksubjectplantanatomy
