I collect a lot of seeds each year from plants which I find especially interesting for one reason or another. Much of my research includes plants from populations which may not be accessible to others not local to California's fantastic plant diversity, especially for obscure and uneconomically-important species. Additionally, as many folks have sent me seeds for projects, I'm paying it forward in a way.
I'd be happy to send along most seeds I have for investigations; a few species on which I am currently working excepted. I did not include seeds available through the USDA GRIN program, which is an invaluable program to me and other plant researchers. A partial list is here (a perpetual work in progress), I'm also happy to collect seeds of other species if convenient.
Email me for more information: lopresti.eric AT gmail.com
By family, families in no particular order.
C. album (15+ populations, Maine to California).
C. sp. nitens?, White Mountains, CA.
C. nevadense, CA
C. vulvaria, 2 pops
More through USDA GRIN
(contact me for more Atriplex seeds, as they are no longer in GRIN, but I have many other accessions)
Blitum californicum, CA
Oxybasis glauca, CA (two pops)
Dysphania ambroisoides, CA
Dysphania sp. (botrys?), CA/MA
Suckleya suckleyana, (seriously cool plant; from USDA CO stock)
Trichostema laxum, CA (germination easy)
Trichostema lanceolatum, CA (germination difficult)
Trichostema simulatum, OR, (germination easy)
Antirrhinum cornutum, CA (somewhat glandular, germination easy!)
Verbascum blatteria, CA, Chile (rather glandular)
Mimulus bolanderi, CA
Mimulus pilosus, CA
Argemone munita, CA
Datura stramionum, MA/CA
Petunia F1 hybrids of the above species
Nicotiana quadrivalvis, CA
Aquilegia eximia, CA
Aquilegia schockleyi, CA (have not grown, sticky!)
Calycadenia sp. (multiglandulosa/pauciflora), CA
Hemizonia congesta, CA
Holocarpha virgata, CA
Madia elegans, CA (seeds from red, yellow and intermediate morphs as shown on left)
Abronia latifolia (seeds/cuttings)
Abronia umbellata (both ssp., seeds/cuttings)
Abronia maritima (cuttings)
Abronia turbinata (seeds)
Abronia villosa (seeds/cuttings)
Abronia fragrans (seeds/cuttings)
Abronia pogonantha (seeds/cuttings)
Abronia elliptica (seeds)
Tripterocalyx crux-maltae (seeds)
Tripterocalyx micrantha (seeds)
Boerhavia diffusa (Chilean population - seeds/plants)
various Abronia hybrids.