130 LEAJLEM. 



upper face little so in maturity : terminal leaflet cuneate-obovate, 

 acute, the margin from the middle part upwards cut into about 

 4 subserrate coarse teeth on each side ; laterals smaller, ovate 

 or ovate-oblong 3-toothed on one side, 1 -toothed on the other: 

 spikes 3 at each axil of one or two upper leaves, each 3 raised 

 on a distinct pedunculiform twig ; bracts glabrous except mar- 

 ginally : fruits small, scarcely compressed, hirsute. 



Of northern New York and adjacent Canada, so far as known ; 

 my type for foliage, inflorescence and growing twigs being from 

 Jones' Palls, Ontario, 26 May, 1891, by J. Fowler, as in U. S. 

 Herb. A sheet in my own herbarium, collected at Henderson, 

 N. Y., Aug. 1896, by Mr. Tidestrom, is in good fruit. 



S. CRATAEGIFOLIA. Evidently low, with rigid short spread- 

 ing branches always glabrous, even when growing : foliage sub- 

 coriaceous, deep green and minutely pubescent above, paler and 

 softly villous beneath; terminal leg,flet broadly obovate, obtuse, 

 li inches long, IJ broad above the middle, below the middle 

 entire but broad and not cuneate, only acute at base, the upper 

 one-half coarsely crenate-dentate ; the lateral leaflets half as 

 large, obtuse at base and crenate or dentate all around the 

 margin : fruit small and in small scattered clusters, sparsely 

 hirsute. 



North Pownal, Vermont, 36 July, 1898, W. Eggleston, n. 172 

 as in TJ. S. Herb. Of firmer foliage than any other northern 

 species, the leaflets strikingly like the leaves of several North 

 American species of Crataegus. 



S. ARENA RiA. Low shrub with erect rather simple branches 

 delicately puberulent the first season, later dark red-brown, 

 glabrous: leaves small, thin, minutely strigulose-pubescent on 

 both faces ; terminal leaflet 1 to \ inches long, narrowly obovate, 

 not notably cuneate, the summit with one terminal, and on each 

 side two lateral rounded lobes, the lateral leaflets similar but 

 smaller : spikes 8 to 10, one at each node of all the upper part 

 of the stem, which thus becomes a kind of elongated compound 

 spike ; bracts glabrous on the back, ciliate : fruits small, 

 densely hirsute. 



