Archive image from page 408 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 Fig. 385. Chrysymenia pyriformis Børgs. A little magni- fied (about 1V4:1). this cortical layer leaves a space free over the middle of the large cells, while in older vesicles the cortical cells very often cover them completely. The wall of the vesicles is about 90 // thick. The cavity in the interior is filled with mucilage. A transverse section of the solid stem (Fig. 387) shows great likeness to that of Chrysymenia microphysa Hauck as drawn by Kuckuck (1. c, p. 210)
Archive image from page 408 of Dansk botanisk arkiv (1913-1981). Dansk botanisk arkiv danskbotaniskark03dans Year: 1913-1981 Fig. 385. Chrysymenia pyriformis Børgs. A little magni- fied (about 1V4:1). this cortical layer leaves a space free over the middle of the large cells, while in older vesicles the cortical cells very often cover them completely. The wall of the vesicles is about 90 // thick. The cavity in the interior is filled with mucilage. A transverse section of the solid stem (Fig. 387) shows great likeness to that of Chrysymenia microphysa Hauck as drawn by Kuckuck (1. c, p. 210). The cells are largest in the middle, de- creasing gradually towards the periphery. On the inner side of the large cells, facing the cavity in the interior of the vesicles, we find here and there groups of gland-cells (Fig. 386 A, C). These are pear-shaped, occurring from two to about eight together in a bunch. Sometimes, too, a solitary gland-cell is present. The cells bearing the gland-cells are mostly smaller than the surround- ing cells. Only sterile plants have been gathered. Compared with Chrysymenia microphysa Hauck — of which we have a detailed description since I described this species by the late Prof. Kuckuck — our plant differs essentially by its larger size, larger and different- ly shaped vesicles of which the Mediter- ranean plant most- ly bears but a single terminal one upon each stem. Further- more, glands are not found intheMe- . diterranean plant. Of the hitherto known Chrysyme- nia-species in the West Indian waters this plant comes, as I have already Dansk Botanisk Arkiv, Bd. 3, Nr. 1. (1920) Fig. 386. Chrysymenia pyriformis Borgs. A, transverse section of the wall, in the middle a cell with glands (70:1). B, part of the wall seen from the surface (70:1). C, large ceils of the wall facing the cavity, one of the cells with glands (70:1). 26
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