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It looks like a good attempt. However they did make a mistake. When writing out a species name, for example
Paphiopedilum rothschildianum you do not underline between the two names. It would be Paphiopedilum rothschildianum or Paphiopedilum rothschildianum.
He also fails to teach about the system of classification. He starts to but doesn't finish.
The system is made up of Kingdom, Phyllum, Class, Order, Family, Genus, Species (my students never get this wrong either because they know Im gonna drill them on it, or because I give them an easy way to remember it, King Philips Class Out For Good Sex).
All plants are in the kingdom Plantea, all plants that can transport water using vessels so they can grow tall and live away from water and give fruit with seeds are in the Division Anthophyta. Division used instead of phyllum here (so it would be King David's Class) These are all the flowering plants, different from plants like Ginko or Pines, Junipers, (all in one division), different from ferns and their allies, and different from mosses and liverworts.
Then you class, orchids are in the class Liliopsida because they are monocots, like grasses and peace lillies, jack in the pulpits, dragon trees, and lilies etc.
Then you have order Asperagales, which includes orchids and irisis for example.
Then you go on to family, where we have all plants that are orchids, Orchidaceae. Then you get down to the genus, Paphiopedilum whose sister genera include all lady slipper genera, Cyps, Phrags, Mexi's, and Selenepidiums as well (the 5 genera are grouped into a tribe, a level between family and genus). Then you get down to the species level. P. rothschildianum.
Look how they do it here: Paphiopedilum rothschildianum - Wikipedia, the free encyclopedia