Hitchcock — Opening of Buds of Some Woody Plants. 137 



Cralcegus coccinea, L. Scales numerous, the inner showing 

 a transition to leaves. The inner scales and stipules glandu- 

 lar ciliate, the latter being nearly as large as their leaves. 

 Vernation conduplicate-plicate. May 14th. 



Ribes gracile, Mx. Scales numerous, all but innermost 

 scarcely enlarging. First leaf nearly normal in appearance. 

 Vernation plicate. Apr. 11th. 



Cormus asperifolia, Mx. Scales one pair, opposite, develop- 

 ing a small blade at the opening of the bud. Vernation 

 slightly involute. Apr. 9th. 



Sambucus Canadensis, L. Usually four buds in an axil, 

 the central being the strongest. Scales opposite, about four 

 pairs, showing transition to leaves. Leaflets involute, side 

 by side. Apr. 20th. 



Symphoricarpos vulgaris, Mx. Scales opposite, three pairs, 

 increasing but little during the opening of the bud. Young 

 leaves oval-oblong. Vernation involute. Apr. 9th. 



Fraxinus viridis, Mx. f. Buds usually two, superposed. 

 Scales opposite, one pair or if two pairs the inner hidden before 

 the expansion of the bud. Leaflets conduplicate, side by 

 side. Apr. 22d. 



Ulmus fulva, Mx. Scales two-ranked, three or four pairs ; 

 outer dark brown and somewhat pubescent ; inner silky-fer- 

 ruginous above. First leaf very minute with two large stipules. 

 Following leaves perfect, each covered by one large stipule 

 and covering the other. Vernation conduplicate. Apr. 30th. 



Ulmus Americana, L. Scales two-ranked, first three pairs 

 empty, scarcely enlarging and soon falling off. Within these 

 are about three pairs of stipular scales, without leaves, that 

 is, the scales are in pairs on each side of the bud and attached 

 at base. The next two pairs of stipules have a minute and 

 abortive leaf between them. The inner leaves increase in 

 size, and are imbricated with their stipules as in U. fulva. 

 Vernation conduplicate. May 4th. 



Geltis occidentalis , L. Scales two-ranked, three pairs. 

 Young flowering branches bear flowers below and leaves above. 

 Leaf branches bear above the scales two or three enlarged 

 early deciduous stipules. First leaves normal ; each enclosing 

 its two stipules. Vernation straight. Apr. 23d. 



