
doi: 10.2307/2422607
available for study. The gross features of the anthers were observed in whole mounts cleared in lactophenol. The structural details were investigated from microtome sections of material imbedded in paraffin and cut at thicknesses ranging from 8-12,u. The sections were stained with Heidenhain's iron-alumhaematoxylin followed by eosin. OBSERVATIONS The large showy flowers contain numerous hypogynous stamens with long and slender filaments. The anthers are dithecous (figs. 1-3) but each of the two thecae is curved like a horse-shoe, whose dorsal arm (d) facing the periphery of the flower, is longer than the ventral (v) facinfg the centre of the flower. As a result of such curvature, the morphological base (b) and apex (a) of the anther are brought close together (fig. 2). The filament is fixed on the shorter side, which is the real base of the anther. The vascular bundle of the filament continues in the anther to form a loop (vl) which extends close to the apex (fig. 3). ABBREVIATIONS
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 8 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
