NotMrKnowItAll, They have them at Scripps College in Claremont, SoCal. But, as I recall, the pungent season is thankfully only a few weeks, so you’d have to get someone there to let you in on the timing.
But it’s an awfully long way from Dallas. Perhaps you could come up with an easier way of arriving at a similar olfactory sensation.
Well, as bad as these trees sound (I’ve never encountered any), they can’t possibly be worse than ginko trees. In the fall, they drop thousands of squishy berries that smell exactly like dog crap. Back at campus (St. Joseph’s Uni., in Philly), we called 'em Shitberries. And some of us had to walk about a quarter-mile past the damn trees, tiptoeing because the sidewalk was caked with the berry remnants, and once you got that stuff on your shoes the smell wouldn’t come out for days.
I’ll take a sperm tree any day over those horrid ginkos.
Quite a few fungi have a ‘spermatic odor’ as well. Pretty startling the first time you run across it in the field ( or in my case on a wet wood platform below a leaky water-heater on which was growing a might patch of Peziza domestica/Pyronema domesticum ).