PLATE XLIV ISCHNORRHYNCHUS RESEDAE 47, Egg. 48, First-stage nymph. 49, Fourth-stage nymph. 50, Third-stage nymph. 51, Second-stage nymph. 52, Adult female. 53, Enlarged drawing of beak of nymph inserted in seed of cat-tail. 54, First-stage nymph. 55, Fifth-stage nymph feeding on seed of cat-tail PLATE XLV TYPHA LATIFOLIA 56, Two plants connected by underground rhizome, showing also new offsets at bases of old plants. 57, Two pieces of rhizome with outer covering removed to show the relative size of the central starchy core. 58, Leaf with part of the upper epidermis removed to show the structure. 59, Cat-tail heads as they appear in late fall. (The one on the left is infested with the larvae of Lymnaecia phragmitella; the one on the right is uninfested.) 60, Cross section of a rhizome |