Field of Science

Showing posts with label Illicium. Show all posts
Showing posts with label Illicium. Show all posts

Friday fabulous flower - star anise

Star anise doesn't just have fabulous flowers, but they are the flowers that are basal to all other flowering plants.  As explained in blog this links to "basal" means that this lineage has a very ancient common ancestry with all other flowering plants, the so-called ANITA grade of ancient lineages where the I stands for Illicium the genus and family name-sake of star anise.  The fruitlets and seeds used as the spice are part of a whorl of pistils that look a bit like a crown in the center of these flowers. TPP almost decided to study this genus many, many years ago, and has a certain fondness for it ever since. This genus has what botanists call a disjunct distribution with species in SE Asia and SE North America and adjacent Mexico and Caribbean.  Prior continental positions account for such distributions, so yes, very old. 

Find the gymnosperm leaf

Here's some leaves that the Phactor scanned after using them in a class. They are all tropical woody plants, but none are any more closer related than being members of the same order.  Note how similar they all are in shape and with a smooth margin. They all have a bit of a short drip tip, and all have pretty waxy cuticles. Now here's the fun part - one is a gymnosperm (Gnetum), one is basal angiosperm (Illicium), and the other two are from the Magnoliales (Myristica, Eupomatia).  Can you figure it out? Hey, does the Phactor have a cool collection of plants at his disposal or what?