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APPENDIX. 



§ 8. Rudiments (abortive flowers). 



Number. Are there i, or 2, or several? 



Kind. Are they staminate, or neutral ? 



Form. Are they a pale ? — a pedicel ? or an awn? 



Quality. Are they ciliate ? scabrous' hairy? 



§ 9. Anthers. 



Place. How are they attached to the filament? 



§ 10. Stigmas. 

 Form, etc. Are they plumous ?— curved ? — erect ? 



§ 11. Grain. 



Kind. Is it an achenium, a cariopsis, or a utricle ? 

 Form. Is it triquitrous? lens-shaped? oblong? etc. 

 Appendages. Is it tipped with a tubercle ? 



VI. ON THE ACTION, ETC., OF PLANTS. 



§ 1. Fertilization. 



1. Does this plant produce any nectar? 



2. Describe the place and form of the nectaries. 



3. What seems to be the primary use of them? 



4. Is the plant wind-fertilized, or insect-fertilized? 



5. What arrangement, if any, prevents self-fertilization? 



6. Is the flower proterandrous ? Is it protogynous? 



7. Is it dimorphous? How does this appear? 



8. How does this favor crossing ? 



9. Do the stamens show irritability? How do they act? 



10. Is the pollen in grains, or in pollinia? 



11. Describe the pollinia. How and by what extracted? 



12. How are they brought to bear on the stigma? 



13. What arrangement fo save the honey from the ants? 



14. How is it secured against rain and dew ? 



15. Are the flowers, any or all, cleistogene? Describe such. 



16. How is the pollen thus economized ? 



§ 2. Sleep. 



I. Is this plant sensitive to night and day? — light and shade? 

 3. What are the indications of it? 



