# Many lineages, one mountain range: what herbarium specimens reveal about Andean plant diversity

- **When:** Thu, Nov 19, 2026, 12:30 PM PST – 1:30 PM PST
- **Where:** 2040 VLSB, Berkeley
- **Price:** Not stated
- **Organizer:** [Integrative Biology](https://eventing.ing/organizers/orgz_1m4v68r989p0rz6kb4p3x8)
- **View on UC Berkeley:** https://events.berkeley.edu/ib/event/334625-laura-lagomarsino-integrative-biology-seminar

The tropical Andes cover just 1% of Earth’s land surface but are home to roughly 15% of all flowering plant species. Much of this diversity arose recently and rapidly, in a landscape that was itself being built by mountain uplift and reshaped by Pleistocene climate cycles. How did so many species evolve so quickly?

My lab approaches this question clade by clade, comparing lineages from across the angiosperm tree of life, and nearly all of our data begin with herbarium…

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