1. The head is granular because of the ostioles of the embedded perithecia. 2. The asci elongate into the ostiole , and discharge the ascospores outward. 3. The wall is thin and fragile and is yellow to brown, with a short ostiole . 4. The infructescence is scion, which is a tiny hole in the crown ( the ostiole ). 5. Mature puffballs release their powdery spores through the ostiole when they are compressed by touch or falling raindrops. 6. The spores are released through a small opening at the apex, the "'ostiole " '. 7. It draws water in through its ostioles and filters out food particles such as bacteria and other micro-organisms. 8. The columellae are not connected to the ostioles , but rather, terminate within the gleba at some distance from them. 9. Inside the pycnidia are branched and unbranched conidiophores with two-celled pycniospores, which later are ejected from the pycnidial ostiole . 10. Female fig wasps arrive carrying pollen from their natal tree and squeeze their way through the ostiole into the interior of the syconium.
