. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . aftiger Fruchte. Ztschr. Natunv. 1886, 59, u Blau: Fructus Myrtilli. Pharm. Post, Wien, 1902, 35, 461. HUCKLEBERRY. This wild berry (Gaylussacia resinosa Torr. and Gray) is abundantin the northern United States, and furnishes large quantities of fruit forthe market. The fruit is globular in form, blue-black in color, and i cm. or lessin diameter (Fig. 290, I and //). It is not a true berry, but a ten-celleddrupe, the hard coverings of the so-called seedsbeing
. The microscopy of vegetable foods, with special reference to the detection of adulteration and the diagnosis of mixtures . aftiger Fruchte. Ztschr. Natunv. 1886, 59, u Blau: Fructus Myrtilli. Pharm. Post, Wien, 1902, 35, 461. HUCKLEBERRY. This wild berry (Gaylussacia resinosa Torr. and Gray) is abundantin the northern United States, and furnishes large quantities of fruit forthe market. The fruit is globular in form, blue-black in color, and i cm. or lessin diameter (Fig. 290, I and //). It is not a true berry, but a ten-celleddrupe, the hard coverings of the so-called seedsbeing the inner walls of the pericarp cells. Theepicarp is smooth and the fruit is crownedwith five-pointed calyx lobes much hke thoseof the cranberry. In the center, between theselobes, is a small depression, the scar of thestyle. The pits are closely crowded aboutthe axis, and as a consequence are wedge-shaped (Fig. 290, /// and IV). Under thehand lens they have a rough granular appear-ance. Within the thick endocarp is the seed witha thin spcrmoderm and a bulky endosperm;in the axis of the endosperm is an Fig. 290. Hucklebenv {Gaylus-sacia resinosa). 1 fruit seenfrom above, Xi. // crosssection of fruity Xi. Illstone, X8. /F cross sectionof stone, XS: End endocarp;5 spermoderm; E endosperm;Em embryo. (Winton.) mSTOLOGY. Pericarp, i. Epicarp (Fig. 291, epi). Surface mounts show thecells of this layer to be much the same in form and size as those of thecranberry epicarp; cross sections, however, show that the cuticle is muchthinner. 2. The Hypoderm (hy) is several cell layers thick, and thus furnishesa protection against evaporation, which is not necessary in the case ofthe cranberry, owing to its thick cuticle. 374 FRUIT. 3. Mesocarp {mes). Owing to the presence of numerous stone cells(5/) this layer is strikinjTly different from the mesocarp of the other com- -epi
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