Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 63. (Budapest 1971)

Kováts, D.: Some histological observations on Lihospermum purpureo-coeruleum L. seedlings

area im mm

2 root hypocotyl epicotyl 1 2 3 4 5 6 7 8 9 levels of various development of germinating organs Fig. 5. Areal ratio of stele and cortex in mm

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, and their quotient, in cross sections. 1. Younger diarchic structure, chiefly with protoxylem. 2. Older diarchic structure, with more metaxylem, and appearance of the waved cambium. 3. Procambium differentiated, waved cambium closed into a ring. 4. Owing to intense functioning of waved cambium, appearance of many secondary vessels. 5. Xylem forming into a compact cylinder, phloem not yet closed into a ring. 6. Xylem strengthening, the discontinuous phloem closed into a ring. 7. Hypocotyl. 8. Epicotyl, with continuous xylem ring. 9. Epicotyl, xylem ring disrupting