Fumitories of North America

Fumaria is usually considered a difficult genus as far as identification is concerned. It is mainly due to the small size of the characters that are useful for the identification and for the fact that often both flowers and fruits are needed.
On the basis of the observations of fumitories from North America, it seems that a revision is needed in order to clarify:
1) the taxa that are present in North America
2) their actual distribution

I would be happy to try to help those iNat users that would like to get more insight into the identification of fumitories.

Here it is a brief list of characters tat are needed for the identification of fumitories.

1) corolla color, shape and length
2) upper petal shape
3) sepals shape and size (length and width)
4) dry fruit shape and size (length and width)
5) pedicel shape (stright, spreading or reflexed) and length at frutification
6) bract length and bract/pedicel ratio
7) flowers number for each inflorescence
8) peduncle/inflorescence ratio
9) leaflets shape

  • characters 1, 3, 4, 5 and 6 should be measured and photographed with a linen tester or a stereomicroscope and a sheet of millimeter paper
  • fruits shape (surface smooth or rugose; overall shape) should be evaluated when fruits are dry. To do this, just put an infructescence in a paper bag or let it dry with some kitchen paper inside a book.

This post represents an example of how a Fumaria should be photographed for its identification:

Among those fumitories found in North America F. capreolata (reflexed fruiting pedicels, sepals broader than corolla, fruits almost smooth) is the one that poses less problems for its identification. On the other hand, some pink-flowered fumitories are, somehow, more difficult to identify and many of them may be misidentied as F. officinalis.

Lidén, M. 1986. Synopsis of Fumarioideae (Papaveraceae) with a monograph of the tribe Fumarieae. Opera Botanica 88: 1-133.
Lidén, M. 1986b. Fumaria L. In S. Castroviejo & al. (eds.): Flora Iberica 1: 447-467.

Please feel free to forward this post to all who may be concerned.

Publicado el febrero 10, 2018 11:42 MAÑANA por italopithecus italopithecus


Publicado por truthseqr hace más de 6 años

This is very helpful. Thank you!

Publicado por izaj hace más de 6 años

Got it. Thanks for putting @ in the comments

Publicado por damontighe hace más de 6 años

Thank you @blue_celery. I'm tagging @tiggrx @qgroom and @lisa_bennett even though they aren't in the US since they add IDs here sometimes, along with @metsa who has several Fumaria observations. :-)

Publicado por carrieseltzer hace más de 6 años

Thanks for tagging me :) I wouldn’t be confident in IDing fumitories past genus, but it’s always good to learn more!

Publicado por lisa_bennett hace más de 6 años

We've recently created an umbrella project for Fumatories in the United States with subprojects for each species:

Publicado por truthseqr hace más de 4 años

Thanks for all this work. I am still a mere beginner in plant ID, but this sort of detailed guide provides hand-holds for we, the naive.

Publicado por gyrrlfalcon hace alrededor de 4 años

@gyrrlfalcon you're welcome

Publicado por italopithecus hace alrededor de 4 años

A url address for this post ought to be added to the "About" page on iNat for the genus and/or for the individual species involved.
Go to the "About" tab and click on "Add Link" under "More Info". It probably takes curator status to accomplish this.

Publicado por gcwarbler hace alrededor de 4 años

sea-kangaroo, could you please add a link for this page to the Fumaria About box? I don't have curator status. Thank you!

Publicado por truthseqr hace alrededor de 4 años

Agregar un comentario

Acceder o Crear una cuenta para agregar comentarios.