Use an asterisk ('*') for text or greater than 0 ('>0') for numbers to find all records with an entry in that field: 
Phylogeny species epithet (eg 'emetica') (See help page for drop-down list of phylogeny spp)
Clade number: (eg '30') Limit search to records with sequenced DNA?
Species (Woo's ID) (See help page for drop-down list of Ben Woo spp)
Date (e.g. 1990 or 1990...1993 or >1990 or 09/20/1992)
WTU Accession    Collection number:   (002, 020, or 200, or 025...035
Province / State (e.g. WA BC OR AK)
Latitude (decimal):    Longitude:   (120...122 or >118)
Latitude: ° ' "     Longitude:  ° ' "
Latitude (decimal):    Longitude:   (example finds 120º to 122.0023º West, the Cascades region)

Bazzicalupo AL, Buyck B, Saar I, Vauras J, Carmean D, Berbee ML. 2017. Troubles with mycorrhizal mushroom identification where morphological differentiation lags behind barcode sequence divergence. Taxon 66: 791–810.

Hawksworth, David., 2017. Trouble over cap colours and species concepts in Russula. IMA Fungus 8: 61-62.