hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

Unauthorized use of a plant doesn't invalidate it's patent

RSS story archive

Re: Pteris cretica; native or not.

  • Subject: Re: [ferns] Pteris cretica; native or not.
  • From: "Louis Chinnery" lec@caribnet.net
  • Date: Sun, 16 Feb 2003 10:31:55 -0400

>A researcher could come to a fairly conclusive answer as to whether or not
>fern is native to a region or locality by examining swamp or similar
>for the spores of that species.

>Brian Swale
>Christchurch NZ.

True but it requires that the spores can be identified to species which is
not always the case.
Where there is no fossil data, written reports are often the best data.
Frequently, this boils down to was it present when European settlers
Rufino Osorio's points about man-made habitats and association with man are
relevant too. However, within flowering plants there are examples of new
hybrid species that have become established because of new habitats created
by man.

Louis Chinnery

To sign-off this list, send email to majordomo@hort.net with the

Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index

 © 1995-2015 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement