474 
Holden and Daniels . — Observations on the 
laminae was not found so commonly, but where it does occur the fused 
blades have either a salver-like appearance (Figs. 9, 10 <2, 10 b, n),in which 
case the upper portions of the laminae are free, or are goblet-shaped with the 
whole length of the blade margins united (Figs. 13 a , 13 b, 13 c). The effect 
Figs. 59-63. Transition in a ‘Type 2' seedling (Fig. 8). Fig. 60 shows the effect of partial 
roofing-in of the plumule on the side of the base of the petiole. The dotted lines indicate 
irregular lines of crushed cells ; p. — the pore-like communication with the plumular bud. 
on the anatomy is exceedingly variable, but in nearly every case a more or 
less complete roofing-in of the plumular bud is evident (Fig. 64). The two- 
sided fusion of the cotyledons evidently imposes considerable strain on the 
tissues, as in some cases a tearing has occurred down one side (Fig. 14), 
whilst in others lacunae are developed in the mesophyll, which can only be 
