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Description: | Collection Name: Biological Sciences Collection; Type Of Object: chart; Marks: Annotated with explanatory notes in old script re.the abbreviations and subject of each diagram.
Fig. 1. rh - roots, vv - 2 vegetative shoots arising by dichotomous branching from older shoot; mi and ma - micro and macro-sporangia; spg - sporangium on leaf of vegetative shoot.
Fig. 2. Longitudinal section through portion of the fertile spike. fv - Axial V. B. (vascular bundle?) of stalk. Chl - inner chlorophyll-containing rind; r - outer colourless rind of axis; iii - air containing cavity surrounding the VB. ff - 2 sporangia-bearing leaves. fv1fv1 - VB of leaves; ma - macrosorangium with 3 macrospores; spm - aborted spore mother-cells; a - outer cell-layer of sporangium wall; b - inner cell layer; c - limitary layer; li - ligule; mi - microsporangium.
Fig. 3. A young sporangium containing spore mother-cells in the interior.
Fig. 4. Tetrahedral division of a spore mother-cell.
Fig. 5. Ripe microspore.
Fig. 6. 4 ripe microspores escaped from a spore mother-cell.
Fig. 7. caption mainly worn away. ax - rind of axis? mi - microsporangium | Publisher: | University of Dundee Museum Services | Rights holder: | University of Dundee Museum Services | Subjects: | BIOLOGICAL SCIENCES COLLECTION BOTANY | Source: | University of Dundee | Creator: | Creator: Dodel-Port, C & A; Publisher: Schreiber, J F | Identifier: | DUNUC-3839/15 | Language: | en-GB |
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