376 YOUNGKEN— ON THE MYRICACEAE 



December. An exception to this rule was noted by the writer at Clemen- 

 ton, N. J. where on February 14, 1915, in a valley protected by tall pines 

 and harboring abundant underbush, the young plants retained many 

 of their leaves, but the majority were partly discolored. They are usually 

 elliptic-obovate, varying from 30 to 105 mm. in length and from 18 to 

 45 mm. in width, the maximum size being attained on the sapling shoots, 

 rounded at the summit and shortly apiculated, feebly attenuated at 

 the base; the most with margin entire, very hairy, feebly incurved below, 

 the others presenting in their anterior half small to large thickened, 

 rounded crenations, each terminated ordinarily by a very small point. 

 The petiole shows a few golden-yellow glandular hairs but covered with 

 white simple hairs on both faces. The upper surface of the lamina 

 is of a bright green color, more or less shining, covered in the adult state 

 with short simple hairs amongst which are scattered golden-yellow glan- 

 dular hairs, never very numerous. The lower surface is dull green and 

 shining in color, finely reticulated, showing numerous simple white 

 hairs and golden-yellow glandular hairs. The mid-rib and lateral 

 veins while visible on the upper surface, are more prominent on this sur- 

 face. 



Myrica Macfarlanei Youngken. (ilf . cerifera x M. Carolinensis) 

 The leaves of this hybrid between M. cerifera and M. Carolinensis 

 show several striking macroscopic characters, which are intermediate 

 between those of its parents. For instance, they vary from lanceolate- 

 cuneate to elliptic-obovate in shape, many of them being a mean between 

 these two forms (Plate 85. Fig. 13). In duration they are semi-evergreen, 

 and usually fall during February-March, by which time they have 

 often assumed a sUght coppery tint. In size, they vary from 25-58 mm. 

 in length and from 8-20 mm. in width. They have numerous orange-red 

 and golden-yellow glands on their lower surface with merely a few of 

 each of these on their upper surface. Simple hairs are found on both 

 surfaces and margin, as on the leaves of Myrica Carolinensis, but relatively 

 fewer in number. The texture of the leaves is sub-coriaceous. In 

 color the leaves have blended the color characteristics of both parents. 

 The margin is more incurved beneath than M. Carolinensis, less than 

 M. cerifera. 



Myrica Gale, L 



The leaves of this plant are simple, alternate, exstipulate, inserted 

 in a 2/5 spiral, pinnately and reticulately veined, subcoriaceous, de- 



