. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. Pig. 387. When mature, the pollen-grain is a cellular body having an exter- nal covering, extine (exto, I stand out, or on the outside), and an internal, intine {inius, within). Fritzsche states that he has detected, in some cases, other two coverings, which he calls intextine and exintine. They occur between the extine and intine, and are probably formed. Please note that these images are extracted from scanned page images that may have been digitally enhanced for rea
. A Manual of botany : being an introduction to the study of the structure, physiology, and classification of plants . Botany. Pig. 387. When mature, the pollen-grain is a cellular body having an exter- nal covering, extine (exto, I stand out, or on the outside), and an internal, intine {inius, within). Fritzsche states that he has detected, in some cases, other two coverings, which he calls intextine and exintine. They occur between the extine and intine, and are probably formed. 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 Balfour, John Hutton, 1808-1884. Edinburgh : A. and C. Black
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1875
