354 The Botanical Gazette, [November, 
their uppermost parts; that each whorl May appear either in 
acropetal or certain whorls seemingly in basipetal order.* The 
appear as small papillae on the annular wall (fig. 5a). In 
their further development the tissue thickens and the epider- 
large; in later growth the tissue becomes more uniform, and 
the tips of the five marginal teeth of the corolla-tube turn in- 
and gynecium (figs. 7-10). The petals forming the flower 
tube are not simply contiguous but united, and as the tube 
elongates it assumes the form of a funnel whose upper margin 
has five spreading teeth. The tubular corolla is not composed 
forms the so-called connective. At the same time peer 
modification of tissue which develops into anther-lobes; the 
are connected and yet separated by the con a idges 
early process of growth there appear two longitudinal F 
*Coulter on the Dandelion, Amer. Naturalist, xvii, No. 12, p. 1212. 
