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Displaying 1 - 8 out of 8 Object(s)
Term Definition
Anisocytic stomata Referring to a stomatal type in which one of the subsidiary cells surrounding a stomate is smaller than the other epidermal cells. Two stomatal types in Gustavia. Drawing by C. A. Gracie.
Anomocytic stomata Referring to a stomatal type in which the subsidiary cells surrounding a stomate are not differentiated from the other epidermal cells. Two stomatal types in Gustavia. Drawing by C. A. Gracie.
Cuticle A waxy layer of the leaf blade that covers the epidermal cells. The cuticle is sometimes modified to forma papillae. Stomates of Lecythidaceae. Drawing by Y.-Y. Huang and Photo by D. Black.
Guard cells Two cells that flank each side of the stomatal opening. These cells control the input and output of carbon dioxide and oxygen and the output of water by opening and closing at different times of the day. Stomates of Lecythidaceae. Drawing by Y.-Y. Huang and Photo by D. Black.
Paracytic stomata Referring to a stomatal type in which the two subsidiary cells are parallel to the long axis of the guard cells. The brachyparacytic type is the same as the paracytic type. Paracytic subsidiary cells of species of Lecythidaceae. Drawing by C. A. Gracie.
Stomatal crypt A pit, usually on the abaxial leaf surface, in which the stomates of some species occur. Stomates of Lecythidaceae. Drawing by Y.-Y. Huang and Photo by D. Black.
Stomate (pl. = stomates) (= stoma sing. and stomata pl.) A small opening, usually in the abaxial surface of leaves, through which gases utilized and produced in photosynthesis pass into and out of the leaves. Stomates of Lecythidaceae. Drawing by Y.-Y. Huang and Photo by D. Black.
Subsidiary cells Epidermal cells that surround stomates and are different in shape, size, or position from other epidermal cells. Stomates of Lecythidaceae. Drawing by Y.-Y. Huang and Photo by D. Black.