. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. 74 ACADEMIC BOTANY. PART SECOND.—PHYSIOLOGY. LESSON XIV. PvOOT AND SUBTEEEANBAN STEM. 142. The Eoot: 143. Axial; 144. Inaxial; 145. Tuberous. 146. Air-plants. 147. Adventitious Roots. 148. Parasites. 149,150. The Stem: 151. Bulb; 152. Corm; 153. Ehizome; 154. Tuber. 142. The Root is the organ of absorption. It imbibes food materials, which it sends up to the stem and leaves; there they are digested into food and sent back to be stored both as food and struc- ture in the st
. Botany for academies and colleges: consisting of plant development and structure from seaweed to clematis. Botany; 1889. 74 ACADEMIC BOTANY. PART SECOND.—PHYSIOLOGY. LESSON XIV. PvOOT AND SUBTEEEANBAN STEM. 142. The Eoot: 143. Axial; 144. Inaxial; 145. Tuberous. 146. Air-plants. 147. Adventitious Roots. 148. Parasites. 149,150. The Stem: 151. Bulb; 152. Corm; 153. Ehizome; 154. Tuber. 142. The Root is the organ of absorption. It imbibes food materials, which it sends up to the stem and leaves; there they are digested into food and sent back to be stored both as food and struc- ture in the stem and root. Roots are of two kinds,' Axial and In- axial. 143. The Axial root has a strong central root, called Tap-root; it characterizes E x o - gens. It has four forms,— Conical, ¥io. ST.—St., with rinrrot, • Villi form or Tio. 88.—a, Butterwort (Pin- ,of Mexi- '-'arror, J^ anjorril, m g„icula vulgaris); b, ^1^ &. can .Jalap (Bcoganium Spmdlc-shaped, Kad- pwga),a,ioo. .^j^ _ Napiform, or turnip-shaped. Jalap (Fig. 87); Ramose, or branching, Butterwort (Fig. 88). 144. Inaxial roots have no tap-root, on account of the early decay of the radicle. They characterize Endogens,. 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 Ketchum, Annie Chambers, 1824-1904. Philadelphia, J. B. Lippincott company
Size: 1100px × 2272px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, bookpublisher, booksubjectbotany
