WOOD'S CLASS-BOOK OF BOTANY. 



CHAPTER VI. 



WHAT is the topic of this chapter ? 



195. What two kinds of buds are mentioned ? 



196. Repeat the definition of the leaf-bud. 



197. What is the nature of the scales ? Show this by figs. 67, 6& 



198. Where are bud-scales needed and found ? 



199. How are the buds protected in rain or cold ? 



200. Which is the parent bud ? What the axillary bud ? 



202. Distinguish the two kinds of axillary buds. 



203. When may the axillary become terminal ? 



204. What if a part of them be suppressed ? What if all ? 



205. When is the axis said to be brachiate? How in the pink? (Fig. 70.) 

 207. What are adventitious buds ? How are they caused ? 



209. Vernation is what ? Best method of displaying it ? 



213. Considering each leaf alone, when is it said to be reclined? 

 When conduplicate f Plaited ? Circinate ? 



When is it convolute ? Involute ? Revolute ? 

 Which variety is seen in oak (fig. 71,) ? In the tulip-tree? Fern? 

 Birch? Cherry? Dock? Balm-of-Gilead ? Sycamore? 



214. Considering the leaves in respect to each other, when are they obvolute ? 

 When triquetrous ? Equitant ? 



215. State the principle of " budding." What are bulblets ? 



CHAPTER VII. 



WHAT is the subject of this chapter ? 



217. How does the leaf figure in landscape scenery ? 



218. What is the general characteristic of the leaf? 



219. What variations in the color of the leaf? 



220. What is the etymology of the word Phyllotaxy ? 



221. Explain "leaves radical." Leaves cauline. Leaves ramial. 



222. What is the alternate arrangement of leaves ? Scattered ? Rosu- 



late? Fasciculate? Opposite? Verticillate ? 



223. If you reduce all these to two types, what are the two ? 



224. What experiment reveals the true nature of the alternate type ? 



226. Can you show that the opposite leaved type may be spiral ? 



227. Decussate leaves what are they ? 



228. State an established law in plant-development 



229. Will you carefully define the elm cycle ? 



230. Calling this the cycle, what does the numerator denote ? What the 



denominator ? 



231. How is the alder cycle ? 



Calling this the ^ cycle, what does the 1 denote ? The 3 ? 



232. Describe the cherry cycle. 

 Why call this the f cycle ? 



233. Describe the Osage orange cycle. 

 Why denominate this the $ cycle ? 



234. Show how these cycles are related to each other. 



If the third is f and the fourth f , what will the fifth be ? 



235. In what plants is this (the y 5 ^) cycle realized ? 



236. What cycle is next in order ? What its numerical sign ? 



237. You may read the remarks on the higher cycles. 



