Scientific and applied pharmacognosy intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for food and drug analysts and pharmacologists . and leptome {I).—AfterHolm. and Cypripedium parviflorum pubescens (Larger Yellow LadysSlipper) (Fam. Orchidaceee), perennial herbs (Fig. 60) native in woodsand thickets of the Eastern and Central United States and —Rhizome horizontal, somewhat tortuous and bent,3 to 7 cm. long, 2 to 4 mm. in diameter; externally dark brown, annu- 138 SCIENTIFIC AND APPLIED PHARMACOGNOSY late from scars of b
Scientific and applied pharmacognosy intended for the use of students in pharmacy, as a hand book for pharmacists, and as a reference book for food and drug analysts and pharmacologists . and leptome {I).—AfterHolm. and Cypripedium parviflorum pubescens (Larger Yellow LadysSlipper) (Fam. Orchidaceee), perennial herbs (Fig. 60) native in woodsand thickets of the Eastern and Central United States and —Rhizome horizontal, somewhat tortuous and bent,3 to 7 cm. long, 2 to 4 mm. in diameter; externally dark brown, annu- 138 SCIENTIFIC AND APPLIED PHARMACOGNOSY late from scars of bud-scales, upper surface with numerous large,sometimes repressed scars, under and side portions with numerousroots and few root-scars; fracture short; internally light brown,cortex about mm. thick, central cylinder somewhat porous, andwith numerous scattered fibrovascular bundles; odor heavy, distinct; ::TO?QCg3QQ. Fig. 61.—Transverse section of central cylinder and portion of cortex of root ofCypripedium parviflorum pubescens: E, epidermis; H, hypodermis; Ca,Raphides of calcium oxalate; P, parenchyma containing starch {St); En,endodermis; F, lignified sclerenchymatous fibers; T, tracheae; B, non-lig-nified, thick-walled fibers exterior to sieve groups; L, peripheral layer ofcentral cylinder. The latter usually consists of 6 to 8 radial fibrovascularbundles. taste bitter, somewhat pungent,are slightly cutinized (Fig. 61). The walls of the endodermal cells SALEP 139 Roots 3 to 11 cm. long, to mm. in diameter; externallylight or dark brown, longitudinally wrinkled; fracture somewhatfibrous; internally, cortex white, central cylinder yellowish. Inner Structure.—See Figs. 60 and 61. Powder.—Yellowish or brownish-black; calcium oxalate inraphides about mm. in length; starch grains somewhat spher-oidal, to 004 mm. in diameter, single or compound; tracheaespiral, scalariform o
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1920
