Revising the Pilea species of the Dominican Republic

P1050375
Sorting all the collections of Pilea into species piles based on morphology and existing identifications. I ended up with over 80 piles and 110 names

Pilea is a genus or group of over 700 species in the nettle family (Urticaceae). It is mainly comprised of succulent herbaceous plants that grow in the shade of forest and is especially diverse in the Greater Antilles and on limestone. Currently over 110 species are recorded for the island of Hispaniola which encompasses the Dominican Republic. They are very variable in their shape and form and probably most people (including many botanists) might not think that they were related to nettles. It is a group that I have been working on for over 15 years and I began work on revising their classification for neighbouring Cuba in 2010.  Surveying the species in the herbarium of the National Botanic Garden in Santo Domingo helped me to see how they compared to the species in Cuba.

am 7486 P1040968

am 7473 DSC_2148

P1050398

am 7470 P1040582
Examples of Dominican Republic Pileas: P. depressa, P. microphylla, P. fairchildeana & P. cf christii. These four species demonstratethe great diversity in form of the genus Worldwide and why they are such an interesting group

After a week looking at the collections and sorting them into piles I started to get an idea as to the species present on this amazing island. Of course establishing their correct names involves a whole other body of work but at least I now have an idea as to what there is in the Dominican Republic, what might be conspecific with Cuban species and where there are complexes of closely-related and potentially interbreeding species. Not bad for a week’s work.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s