The weather is heating up, and so is activity within Wisconsin’s innovation community. Stay in the know with these recent headlines:

—Stemina Biomarker Discovery, a Madison-based startup that’s developing a blood-based test for diagnostic autism spectrum disorder, raised another $2.4 million from investors, co-founder and CEO Elizabeth Donley said in an e-mail. The new money is a combination of debt and equity financing, according to documents filed with securities regulators. Stemina, which last month announced changes to its business structure and provided updates on a study of its test, has to date raised $10.8 million from investors and $7.5 million in grants, Donley said. Read the full Xconomy Wisconsin watchlist here.