. The essentials of botany. Botany. OAliPOPEYTA. 167 tioally. These protophytes, -which live in the midst of the moist tis- sues of the lichens, were until re- cently supposed to be parts of the lichen itself, and were called go- nidia, a term which it is still con- venient to use. A few lichens are parasitic in this way upon plants a little higher than protophytes. 351. The spores of lichens are produced in sacs, which are either in discs (similar to those of Cup- fungi) or in cavities (similar to thcce of the Black Fungi). In many common species the spore- bearing discs (called apotheoia) ar

---

. The essentials of botany. Botany. OAliPOPEYTA. 167 tioally. These protophytes, -which live in the midst of the moist tis- sues of the lichens, were until re- cently supposed to be parts of the lichen itself, and were called go- nidia, a term which it is still con- venient to use. A few lichens are parasitic in this way upon plants a little higher than protophytes. 351. The spores of lichens are produced in sacs, which are either in discs (similar to those of Cup- fungi) or in cavities (similar to thcce of the Black Fungi). In many common species the spore- bearing discs (called apotheoia) are large and readily seen (Fig. 90, A and B), while in others they are small and not easily made out. In other species the spore-sacs are im-. 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 Bessey, Charles E. (Charles Edwin), 1845-1915. New York : H. Holt and company, ;

---

Size: 1711px × 1460px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, bookpublisher, booksubjectbotany