Here is a dazzling paper that discusses why some geophytes are rhizomes and others are bulbs; why some have seeds in soft berries with round seeds while others have dry capsules with flat, papery seeds; why leaves are arranged the way they are, and lots else. I’ve promoted it before, but long ago. It’s an oldie but goldie by a couple of botanists whose other papers are also well worth looking up. -------------- next part -------------- I’m attaching it as a .pdf, but in case that doesn’t come through, it’s called PHYLOGENY, CONCERTED CONVERGENCE, AND PHYLOGENETIC NICHE CONSERVATISM IN THE CORE LILIALES: INSIGHTS FROM rbcL AND ndhF SEQUENCE DATA by THOMAS B. PATTERSON AND THOMAS J. GIVNISH It was published in 2002 in the journal Evolution, 56(2), pp. 233–252. Easy to find in various online archives, though possibly only as an abstract. Very sorry but I am rarely online, am unlikely to reply, but thought this might be useful. Paige Woodward > On Feb 7, 2019, at 9:28 AM, mark akimoff <makimoff76@gmail.com> wrote: > > Hello, > > I'm wanting to put together an introductory power point on the evolution of > geophytes to be used in STEM (Science Technology Engineering and Math) > outreach at local schools. I'm interested in the story telling aspect of > it, and Martyn Rix' "Growing Bulbs" has a great introductory chapter on the > evolution of flowers that covers things like the Crocus, and subterranean > ovaries as an adaptation to grazing pressure. Or for instance, fall > blooming speciation as an adaptation to seasonal migration of grazing > herds across elevational gradients. > > Beyond that book does anyone have any other books, articles, ideas, > theories, etc? That might be useful in introducing evolution of geophytes > as a curriculum? I'm leaning towards tying it in to current issues like > zeric adaptations for changing climate or pollution tolerance, that sort of > thing. > > Any help from this brain trust would be much appreciated! > > Thanks, > Mark Akimoff > illahe > Salem, Oregon > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > http://lists.pacificbulbsociety.net/cgi-bin/… _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net http://lists.pacificbulbsociety.net/cgi-bin/…