. The Botanical magazine. Plants; Plants -- Japan. We often oljserve a body which looks like an accessory nucleus in the egg cell. This body appears near the egg nucleus, when the arcliegoniutn become nearly mature. It stains with liacmatoxylin just as much as the ventral canal cell nucleus or neck canal cell nucleus. In such cases starch grains appear very often around thu body (Text- fig. 2). At the time when the sperm nucleus mates with the egg nucleus, the body still retain its size and shape, and undergoes no modification, and keep its situation near the egg nucleus. In some cases we meet
. The Botanical magazine. Plants; Plants -- Japan. We often oljserve a body which looks like an accessory nucleus in the egg cell. This body appears near the egg nucleus, when the arcliegoniutn become nearly mature. It stains with liacmatoxylin just as much as the ventral canal cell nucleus or neck canal cell nucleus. In such cases starch grains appear very often around thu body (Text- fig. 2). At the time when the sperm nucleus mates with the egg nucleus, the body still retain its size and shape, and undergoes no modification, and keep its situation near the egg nucleus. In some cases we meet two or three such bodies at a time in an egg cell (Text- fig. 3). A closer comparison of this body with the chrom- atophores in the neighbouring Cells lead us, however, to the view that it is of the nature of a chromatophorc. In normal case the arche- gonium consists of sixteen neck cells, one neck canal cell, one ventral canal cell, and the egg cell?but in ab- normal cases, there are two cggci-lls (Text-fig. 4) ? ami in some cases two e<:;gcclls are arranged side by siae, without a ventral canal cell (Text-fig. 5).It is rather difficult to isolate the microspores from the macrospores completely, so as to give them no chance of fertilization without an artificial aid. Though it is rather ex- Texl-fig. 2. Arcliegonium of L japonica. The body in question, surrounded with btarch grains in the egg cell{DD X C'omps. Text-fig. 3. Archegonium of J. japonica, Male nucleus situated dose to tlie egg nucleus (DOxComps. 8). T??. ?/r. 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 Tokyo Shokubutsu Gakkai; Nihon Shokubutsu Gakkai. Tokyo : Tokyo Botanical Society
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectplants, bookyear1887
