OUTLINE OF COURSE IN PLANT CULTURE. 
235 
5. Special processes for removing seed-coat. 
6. Treatment of seedlings in culture, watering, trans¬ 
planting. 
Section II. Ascending portion of plant. 
A. The stem. 
1. Function. 
Dicotyledonous (wood, bark, 
pith). 
Monocotyledonous (fibro-vas¬ 
cular bundles, parenchyma). 
3. Fibro-vascular bundle, (wood, bast). 
4. Cambium layer. 
5. Annual rings. 
6. Function of xylem and phloem. 
a. Propagation by stem. 
1. Cuttings (herbaceous, woody). 
2. Place and media for rooting cuttings. 
3. Growing cuttings in living room. 
4. Grafting: splice, tongue, saddle, side-crown, 
triangular-crown, veneer, cleft, bottle. 
5. Reasons for grafting. 
6. Principles governing the process. 
7. Time, material for scions, condition of stock, 
grafting-wax. 
b. Treatment of stem. 
1. Pruning (time, methods, reasons). 
2. Protection of stem in transplanting. 
3. Healing and protection of injured stems. 
4. Cause of flow of sap when trees are tapped in 
spring. 
B. The leaf. 
1. Structure (tissues, stomata). 
2. Function (photosynthesis, transpiration). 
3. Chlorophyll (properties, function). 
4. Conductive portion. 
5. Development (relation to light). 
6. Propagation by (Begonia). 
2. Structure 
and 
Devlopment 
