16 PITTONIA. 
ovoid, often obtuse or nearly truncate both at base and at 
the mucronate apex, the largest 3 inches long and nearly 2 
in breadth, the margins glandular-crenate or subentire, yel- 
lowish beneath, bright green and glabrous above, coriaceous 
and persistent: berries small, scarlet, mostly solitary in the 
axils of the leaves, 2-seeded: seeds obovoid, with a. deep 
narrowly cuneate-obcordate groove on the back: ; 
Species apparently peculiar to Santa Cruz Island, off the 1 
coast of California; referred by me to R. insularis in my : 
list of the plants of that island, but erroneously; the shrub | 
of the far southerly islands and shores being very different. | 
RHAMNUS BETULJEFOLIA. Deciduous shrub, with slender | 
and flexible somewhat pubescent leafy branchlets: leaves 
ample, thin, not very strongly veiny, of various outline, fro: 
oval to elliptical, ovate-lanceolate and obovate-lanceolat 
obtuse or acute, finely serrulate, the largest 31 inches lon 
and 2 in width, the smaller only an inch; the petioles of 
all about 1 inch: immature fruits in umbellate clusters, 
the common peduncle exceeding the petiole, and bearing 
only a few pedicels. 
Banks of streams, in the Mogollon Mountains, New Maxi 
1881, Dr. H. H. Rusby ; the specimens distributed as.R. 
Purshiana, to which the species is related. But it is very 
remotely isolated from the habitat of R. Purshiana and quite 
distinct from it in several points. Here described from - 
specimens in the herbarium of Prof. Porter. 
RHAMNUS ANONEFOLIA. Deciduous shrub with few and. 
not slender leafy and puberulent branchlets: thin and not 
strongly veiny leaves very ample, 3 to 5 inches long, many 
23 inches wide above the middle, all of distinctly obovoi 
outline and more or less cuneate-tapering below the middl 
or even from towards the apex, obtuse or retuse, or some 
even distinctly obcordate, finely serrulate, especially ab 
the middle, the petioles 3 to 1 inch long: the e solitary í fi 
