illustration of cross-section through leaf, showing upper epidermis, palisade mesophyll, xylem vesse - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
creative card hello autumn with elements in circle shape. autumn background - 葉表皮 幅插畫檔、美工圖案、卡通及圖標秋天, 蔬菜類, 稻草人
phytophthora infestans water mold causing potato blight, magnification of leaf stomata with infestation - 19th century - 葉表皮 幅插畫檔、美工圖案、卡通及圖標患病植物
study of mullein, cinquefoil, wormwood, rock cress, oleaster hair types – verbascum, potentilla, artemisia, aubrieta, elaeagnus - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
mistletoe, viscum album, european holly, ilex aquifolium, oleander, nerium oleander, leaf cuticle sections - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
study of oak, quercus, and white water lily, nymphaea alba, leaf anatomy and water absorption - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
floral pattern :this 19th-century engraving most likely depicts a clematis (genus clematis), - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
deciduous tree branch, angiosperm stem, schematic cross section showing wood and bark tissues - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
white lily flower (lilium candidum) leaf cross section, magnification of plant cell structure full leaf thickness - 19th century - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
nodding waternymph plant (najas flexilis) leaf cross section, magnification of chloroplast circulation in plant cells - 19th century - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
study of aspen, populus tremula, acantholimon, and saxifrage, saxifraga aizoon, leaf glands and scales - 葉表皮 幅插畫檔、美工圖案、卡通及圖標
