. Dansk botanisk arkiv. Plants; Plants -- Denmark. 18 Dansk Botanisk Arkiv, Bd. 2. Nr. Fig. 8. Cymodocea isoetifolia. a, Male flower; b, Female flower. (4/j nat. size.) ary axis usually has one or two leafy bracts inserted above those leafy bracts from the axils of which the secondary axes arise; this arrangement occurs again in the youngest one-sided parts of the inflorescence, whereas in its median part each axis has only the two leafy bracts sub- tending branches. The flowers are covered by the inflated sheaths of the leafy bracts. In the female flower the four stigmatic branches are se
. Dansk botanisk arkiv. Plants; Plants -- Denmark. 18 Dansk Botanisk Arkiv, Bd. 2. Nr. Fig. 8. Cymodocea isoetifolia. a, Male flower; b, Female flower. (4/j nat. size.) ary axis usually has one or two leafy bracts inserted above those leafy bracts from the axils of which the secondary axes arise; this arrangement occurs again in the youngest one-sided parts of the inflorescence, whereas in its median part each axis has only the two leafy bracts sub- tending branches. The flowers are covered by the inflated sheaths of the leafy bracts. In the female flower the four stigmatic branches are seen above the sheaths. In the male flower the anther must be supposed to appear when it is ripe, but I have not succeeded in finding this stage. All the male flowers examined by me had a sessile double stamen inclosed in the sheath or sheaths (Fig. 8 a); the filament is so short that the anther is almost sessile, but most probably it elongates suddenly thus enabling the anther to extend beyond the sheath, or perhaps the whole anther breaks off when ripe. The structure of the male flower is the same as in other species of Cy- modocea, and there seems to be no dif- ference between the two species. In both the flower consists only of two connate stamens. The anthers are ex- trorse and the whole flower looks like one 8-locular stamen. A transverse sec- tion through the middle shows four bilocular parts, and it is only in the upper half that the two anthers become distinct from each other (Fig. 9). In C. isoetifolia the anther is — mm long and — mm thick, and the pollen sacs are often somewhat twisted (see Fig. 4 6). In the two male flowers Fig- 9< Cym, isoetifolia. of C. manatorum which I have been able Transverse sections of the to examine, the anthers were a little S^MhrouA^d! shorter and broader: and mm die. (About 20/i nat. size.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability
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