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The couture collection relied heavily on floral motifs, but the most interesting pieces were those that deviated from that delicate floral formula.
Almost all the features denoted in a floral formula will be used in the identification process just to get to family level.
Even allowing for these differences, it is relatively easy to decipher most of the botanical information contained within a floral formula, no matter what the format is.
The Virtual Floral Formula is a Web site that lets students practice their floral structure interpretation skills using detailed dissection photographs of the flowers of 12 species.
After the opening page (Figure 2), which shows some of the floral diversity of the Australian Proteaceae (but with little or no variation in floral formulae), users progress to a page where they can choose between (1) learning about flower structure and floral formulae in general, (2) learning how to use the Virtual Floral Formula site, and (3) constructing their own floral formulae.
Below the image window is the "backbone" of the floral formula (i.
The Virtual Floral Formula allows them to review this material in the days immediately after the practical session and in the period just before the exam.
I have photographed dissection sequences for several species other than those shown in the Virtual Floral Formula.
In theory exams, as opposed to practical exams, I will often either provide a written description of a flower and ask students to write the appropriate floral formula or, more frequently, provide a floral formula and ask the students to describe the flower.
It is difficult to quantify the effectiveness of the Virtual Floral Formula in a way that is equitable and meaningful.
As best as I can tell, there is nothing available for plants that is even remotely similar to the Virtual Floral Formula, either on the Web or commercially.
The first image is always the floral formula for the family, which is supported by various close-up images of flowers and dissections of flowers.