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Term Definition
Sulcate Furrowed or grooved; e.g., the trunk of some species of Aspidosperma (Apocynaceae). On a larger scale same as fluted. On a smaller scale, it may refer to groves of the seed of Elaeagnus bullatum or those extend downward from between the calyx-lobes of Lecythis mesophylla. Sulcate and fenestrate tree trunks. Photos by C. A. Gracie.