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Cocculus pendulus, (A and B) Scanning electron photomicrograph and photomicrograph of stem cross-section reveal wide vessels (wv) and ray parenchyma (rp). (C) Scanning electron photomicrograph of a vessel shows simple perforation plate and circular thickening of wall. (D) Scanning electron photomicrograph of Xylem parenchyma reveals a dense accumulation of starch grains.
