Another alternative that has worked great for me is a half inch of silica gel in the bottom of a plastic card file and glassine envelopes. Anything works great if you only have a dozen pollens to keep track of, but when you have fifty or a hundred, it's a lot easier to search a card file (and you can write as large as you want on the envelope). Tim Eck > -----Original Message----- > From: pbs [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of James SHIELDS > Sent: Friday, March 03, 2017 4:32 PM > To: Pacific Bulb Society > Subject: Re: [pbs] re centrifuge tubes for pollen > > I use the 1.5 ml size with attached cap > > > On Fri, Mar 3, 2017 at 4:20 PM Ina Crossley <klazina1@gmail.com> wrote: > > > What is the size of the centrifuge tubes I can keep pollen in to put > > in the freezer? > > > > Ina Crossley > > _______________________________________________ > > pbs mailing list > > pbs@lists.ibiblio.org > > http://pacificbulbsociety.org/list.php > > http://pacificbulbsociety.org/pbswiki/ > > > -- > James Shields jshields46074@gmail.com > P.O. Box 92 > Westfield, IN 46074 > U.S.A. > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/