Diplacus

{{Short description|Genus of flowering plants}}

{{Automatic taxobox

|image = Diplacus mephiticus.jpg

|image_caption = Diplacus mephiticus, a population with flowers of varied colours

|taxon = Diplacus

|authority = Nutt. (1838)

}}

File:Steamboat monkeyflower, Diplacus ovatus (32232823547).jpg, Diplacus ovatus. Carson Range, 2017]]

Diplacus is a genus of flowering plants in the family Phrymaceae, which was traditionally placed in family Scrophulariaceae. It includes 49 species native to the western United States and northwestern Mexico. Most prefer dry and rocky areas.{{cite web|url=http://www.laspilitas.com/groups/Monkey_flower/California_monkey_flower.html|title=California Monkey flowers|publisher=Las Pilitas Nursery|access-date=19 February 2017}}

The genus Diplacus was first described by Thomas Nuttall in 1838. It was merged into Mimulus no later than 1905, until the 2012 restructuring.{{cite magazine|title=Diplacus glutinosus|url=https://books.google.com/books?id=FZdOAQAAMAAJ&pg=PA741|location=London|magazine=Gardeners' Magazine |page=741|volume=XLVIII|date=18 November 1905}} The 2012 restructuring of Mimulus by Barker, et al., based largely upon DNA evidence, left seven species in Mimulus, placed 111 into Erythranthe (species with axile placentation and long pedicels), placed 46 into Diplacus (species with parietal placentation and sessile flowers), placed two in Uvedalia, and placed one each in Elacholoma, Mimetanthe, and Thyridia.{{cite journal |last1=Barker |first1=W. L. (Bill) | last2=Nesom |first2=Guy |last3=Beardsley |first3=Paul M. |last4=Fraga |first4=Naomi S. |year=2012 |title=A Taxonomic Conspectus of Phrymaceae: A Narrowed Circumscription for Mimulus, New and Resurrected Genera, and New Names and Combinations |url=http://www.phytoneuron.net/PhytoN-Phrymaceae.pdf |journal=Phytoneuron |volume=39 |pages=1–60 |issn=2153-733X}}{{cite journal | last1 = Cooley| first1 = Arielle M. | last2 = Willis| first2 = John H.| year = 2009 | title = Genetic divergence causes parallel evolution of flower color in Chilean Mimulus| journal = New Phytologist | volume = 183| issue = 3| pages = 729–739 | doi=10.1111/j.1469-8137.2009.02858.x| pmid = 19453433 }}{{cite journal | title=Speciation by genome duplication: Repeated origins and genomic composition of the recently formed allopolyploid species Mimulus peregrinus| first1 = Mario | last1 = Vallejo-Marín| first2 = Richard J. | last2 = Buggs | first3 = Arielle M. | last3 = Cooley | first4 = Joshua R. | last4 = Puzey | journal=Evolution| year=2015| doi=10.1111/evo.12678| volume=69 | issue = 6 | pages=1487–1500| pmc = 5033005 | pmid = 25929999 }}