. Contributions from the Botanical Laboratory, vol. 7. Botany; Botany. 270 INTERNATIONAL CONGRESS OF PLANT SCIENCES (•()N(;kkss oi <( ii:\( is : I I'lg. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. FiR. l<'ig. Fig. Fig. Fig- Fig. Explanation of Plate PLATE I MODELS OF THREE TYPES OF FIRST ]\L\TURATT()\ DTVISIOX CHROMOSOMES IN GASTERIA L Late anaphase, long chromosomes of closely subterminal type, viewed from outside the spindle, with the tetrad split widely open. 2. Early anaphase, the same type of chromosome and position, the tetrad split partly opened. 3. Metaphas
. Contributions from the Botanical Laboratory, vol. 7. Botany; Botany. 270 INTERNATIONAL CONGRESS OF PLANT SCIENCES (•()N(;kkss oi <( ii:\( is : I I'lg. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. Fig. FiR. l<'ig. Fig. Fig. Fig- Fig. Explanation of Plate PLATE I MODELS OF THREE TYPES OF FIRST ]\L\TURATT()\ DTVISIOX CHROMOSOMES IN GASTERIA L Late anaphase, long chromosomes of closely subterminal type, viewed from outside the spindle, with the tetrad split widely open. 2. Early anaphase, the same type of chromosome and position, the tetrad split partly opened. 3. Metaphase, the same type of chromosome and position, the metaphase tetrad character visible but the elements in contact. 4. Late anaphase, the same type of chromosome from the side, showing primarily the separation of the homologs, but the division of each of these recognizable on the right. 5. l':arly anaphase, the same type of chromosome and position, the separation of the homologs evident, the splitting largely obscured because of the position. 6. Metaphase, the same type of chromosome and position, the homologs in contact, but almost no trace of the tetrad character visible. 7. Late anaphase, the small chromosome type, viewed from outside the spindle, with the tetrad splits nearly completed. 8. Early anaphase, the same t\pe of chromosome and position, the tetrad character evident. 9. I^Ietaphase, the same type of chromosome and position, the tetrad charaaer visible but the elements in contact. 10. Late anaphase, the same type of chromosome nearly from side view, showing primarily the separation of the homologs, but the division of each of these recognizable on the left. 11. Early anaphase, the same type of chromosome and position, the separation of the homologs beginning, the splitting of these obscured by the position. , 12. Metaphase, the same type of chromosome and position, the homologs in contact and the tetrad character invisible. 13. Late anaphase, long chromosomes with fi
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1892
