498 MISS iSABEL MCCLATCHIE ON 
ground at the cotyledonary node. A few roots may arise along the under- 
side of the hypocotyl, but they appear after the nodal roots, and they show 
no regularity in their order of development (text-fig. 6). Adventitious 
roots never arise normally on that side of the axis which makes an obtuse 
angle with the ground, however little over 90° that angle may be. 
Ета, 5.— Plant with hypocotyl nearly horizontal; adventitious roots have anchored the 
plant to the soil at the first node. 
Fic, 6.—Plant showing roots developing from the underside of the hypocotyl. 
In the most crowded areas in the bed of plants referred to above, particu- 
larly at the base of the wall where the shade was greatest, the plants were 
not only bent at the first node, but at the second, and in some cases the 
