. Contributions from the Botanical Laboratory, vol. 5. Botany; Botany. Fig. 8. Transverse section ovary Pleuricospora fimhriolata X 25. 1. Near base. 2. At middle. In Monotropa hypopitys the ovary is ovoid, io-8-lobed. As in the Pyrolaceae it is 5-4-celled at the base and one-celled above with 5-4 bilobed parietal placentae. At the base of the ovary there are 10-8 downward directed spur-like processes, which extend between the stamens and secrete nectar into the saccate bases of the petals. The style is thick and fleshy, longer than the ovary, it and the ovarian wall being strongly pubescent w
. Contributions from the Botanical Laboratory, vol. 5. Botany; Botany. Fig. 8. Transverse section ovary Pleuricospora fimhriolata X 25. 1. Near base. 2. At middle. In Monotropa hypopitys the ovary is ovoid, io-8-lobed. As in the Pyrolaceae it is 5-4-celled at the base and one-celled above with 5-4 bilobed parietal placentae. At the base of the ovary there are 10-8 downward directed spur-like processes, which extend between the stamens and secrete nectar into the saccate bases of the petals. The style is thick and fleshy, longer than the ovary, it and the ovarian wall being strongly pubescent with unicellular hairs. Toward the top, the style Monotropaceae with Reference to Ericaceae 99 expands slightly, forming a ring, below this is a circle of hairs. The upper surface is hollowed out into a funnel-shaped 4-5- sided stigma. In M. uniflora the ovary is ovoid, larger and more distinctly ten-lobed than in M. hypopitys. At the base are developed the ten nectaries similar to those of M. hypopitys, but larger. The style is shorter, the stigma much less hollowed out than in M. hypopitys, appearing more like a flat disc. In Sarcodes sanguinea the ovary is smooth, ten-lobed, each lobe extending between two stamens and continued down into a nectar-secreting portion. It is five-celled at the base, becom- ing one-celled above as in Monotropa. The style is erect, bear- ing a five-lobed stigma. In Pterospora the ovary is ten-lobed, depressed. It is five- celled below and one-celled above as in all the preceding. No nectaries are present. The style is short and broad, the stigma peltate-capitate, slightly Fig. 9. Longitudinal section flower Newherrya spicata at base X 25. F = filament, N = nectary, P = petal, S = sepal. In Pleuricospora the ovary is ovoid, not lobed, the epidermal cells bearing distinct pointed papillae. It is four-celled at the base (Fig. 8, i) and for about one-sixth the length of the ovary, but further up (Fig. 8, 2) the four placentae fail to meet
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1892
