134 LEAFLETS. 
foliage less densely velvety on both faces; terminal leaflet 3-lobed, 
the broad obtuse lobes coarsely crenate or dentate: bracts of 
the short spikes not more tomentose than in other species, even 
partly glabrous: fruits large, not strongly hirsute. 
Hills and low mountains of eastern and southern New Mexico, 
thence across to northeastern Arizona; first collected on Emory’s 
expedition. Mr. Wooton has distributed specimens as “ Rhus 
Emoryt n. ap but I do not find any printed character, though 
such may possibly exist. 
S. OXYACANTHOIDES. Low, intricately compact with many 
slender recurved branches, the older pale ash-gray and glabrous, 
the growing ones minutely puberulent : leaves small, sub-coria- 
ceous, glabrous except a few hairs along the veins on both faces ; 
terminal leaflet 1 inch long, broadly cuneate-obovate in outline, 
often subtruncate at summit and there deeply 3-lobed, the lobes 
entire and subequal, or else the middle one exceeding the other 
two and 3 to 5-crenate, lateral leaflets not much smaller, usually 
3-lobed, sometimes entire, the whole margin in all narrowly 
revolute: spikes 1 or 2, small, both in the axil of the upper- 
most leaf. : 
Known only in one specimen, in my own herbarium, collected 
by myself on some desert hillside back of Grand Junction, 
Colorado, 27 Aug. 1896. The leaflets imitate the leaves of a 
common form of Crataegus Oxyacantha. 
5. PULCHELLA. Branches rigid, straight, hoary for several 
seasons with dense minute downiness ; foliage small, soft-pubes- 
cent on both faces, dark green above, light beneath ; terminal 
leaflet seldom an inch long, abruptly cuneate from below the 
middle, otherwise deeply 5-lobed, the lobes rarely entire, usually 
with 2 to 5 secondary rounded lobes; laterals half as large, ` 
mostly with 5 obtuse lobes: spikes small, sessile near ends of 
branches: bracts more or less tomentulose on the back: fruit 
small, setulose. 
Toward the Rio Limpio, western Texas, C. Wright, 1852, 
n. 1342 asin U. S. Herb.; also later from the same general 
region by Reverchon, Heller, Earle & Tracy. 
