. Pharmaceutical botany. Botany; Botany, Medical. Fig. 6.—Closed bundle of stem of Zea mays. VG, Bundle sheath; L, inter- cellular space; A, ring from an annular tracheal tube; SP, spiral tracheal tube; M, pitted vessels; V, sieve tubes; S, companion cells; CP, crushed primary sieve tubes; F, thjn-walled parenchyma of the ground or fundamental tissue. {From Sayre after Strasburger.). Fig. 7.—Transverse section of a concentric bundle from the rhizome of Iris Xylem surrounding the phloem. I, Tracheae; t\ protoxylem; s, sieve tubes; g companion cells of the internal phloem portion. {From Sayre af
. Pharmaceutical botany. Botany; Botany, Medical. Fig. 6.—Closed bundle of stem of Zea mays. VG, Bundle sheath; L, inter- cellular space; A, ring from an annular tracheal tube; SP, spiral tracheal tube; M, pitted vessels; V, sieve tubes; S, companion cells; CP, crushed primary sieve tubes; F, thjn-walled parenchyma of the ground or fundamental tissue. {From Sayre after Strasburger.). Fig. 7.—Transverse section of a concentric bundle from the rhizome of Iris Xylem surrounding the phloem. I, Tracheae; t\ protoxylem; s, sieve tubes; g companion cells of the internal phloem portion. {From Sayre after Vines.) g-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Youngken, Heber W. (Heber Wilkinson), 1885-1963; Stewart, Francis Edward, 1853-1941. Philadelphia, P. Blakiston's son & co
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbo, booksubjectbotany
