Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 65. (Budapest 1973)

Kováts, D.: Anatomical investigations on the vegetative system of Lithospermum purpureo-coeruleum L.

(X 190). 3 = Primary tracheae with sperally thickened cell walls and secondary tracheae with borderecl-pettedly theckenecl cell walls ( X 320) 4 = Tracheae with diversely steep spirals ( X 1100). Plate IV Fig. 1. Longitudinal section of rhizome xylem; vessels with bordered-pittedly tbeckened cell walls ( X 700). — Fig. 2. Rhizome of disturbed structure ( X 300). — Fig. 3. Upperside epiderm of foliage leaf in superior view (x400). - Fig. 4. Underside epiderm of foliage leaf in superior view. Stomate of Ranunculaceae type { X450). Plate V Figs. 1—4. Epidermal (skin) slides of foliage leaves: 1 — Underside with a Ranuneulaceae type stoma (upper one) and a Rubiaceae type stoma (lower one) (X960). 2 = Hairs of upperside epiderm ( X 60). 3 = Hairs of underside epiderm ( X 60). 4 = Hair with large cystolith on upperside of foliage leaf, with swollen, cystolithic hair-base cells ( X 300). Plate VI Fig. 1. Cross-section of foliage leaf. Uniseriate palisade parenchyma on upperside, a loose spongy parenchyma on underside (X380). — Fig. 2. Cross-section of foliage leaf wingshaped ( X 160). — Fig. 3. Spongy parenchyma on underside, with network of veins ( X 60). — Fig. 4. Cross-section of leaf median vein (x380). Plate VII Figs. 1—4. Petiole cross-sections: 1 = Wing-shaped leaf petiole, separating from shoot axis (X 60). 2 = Arc of transport vessel nearer to concave side of petiole (X70). 3 = Cross-section of petiole vein (xl60). 4 = Part of cross-section from transport vessels of petiole vein (x480). Plate VIII Fig. 1. Cross-section of foleage leaf median vein (x500). Fig. 2. Cross-section of foliage leaf petiole with lamellar collenchyma on both sides ( X 150). Fig. 3. Part of cross-section of foliage petiole (X380). Fig. 4. Cross-section from „wing" parr of foliage leaf, with lamellar and angulate collenchyma (X190). Author s address : Dr. D. KOVÁTS Botanical Department of the Hungarian Natural History Museum 1146 Budapest, Vajdahuny ad vár Hungary