Recognizing Microstructure Traits in Cacti and Succulents
Under a 40× lens, the epidermis of a cactus can look like a field of glassy domes, each dome a living pressure valve that swells at night and flattens at noon. Those domes are stomata, but their rims are reinforced with suberin bands that keep the pore from tearing in bone-dry air. Spotting that subtle…