REPORT OF THE STATE BOTANIST 1903 51 
Clayey soil. North Greenbush. The plants which are here 
referred to this species diverge so much from a rigid agreement 
with the description of the species to which we have referred them 
that it seems best to consider them a variety which may be called 
var. divergens. 
It is characterized as follows: 
Leaves oval, serrate with blunt gland-tipped teeth, divided 
above the middle into 4-5 short narrow strongly pointed lobes each 
side, petioles villose; corymbs 5-10 flowered, stamens 10-18, anthers 
whitish ; fruit globose or oval. 
The young shoots are villose tomentose. The flowers open about 
the middle of May and the fruit ripens the last week in August 
or early in September, which is two or three weeks earlier than in 
‘the type. Only a single clump of this shrub was found. It ap- 
proaches C.densiflora in its characters but differs from it in 
its more numerous stamens and in having the lower surface of the - 
leaves hairy on the midrib and principal veins. 
TENUIFOLIAE 
Fruit medium, oblong, pyriform or subglobose, crimson or scar- 
let, nutlets 2-5; inflorescence glabrous or nearly so, stamens 5-20, 
anthers pink, rose color or dark red; leaves membranaceous, gen- 
erally pubescent on the upper surface when young, glabrous or 
scabrous when mature. 
The three species here recorded may be tabulated as follows: 
Leaves ovate or oblong ovate C.ascendens 
Leaves ovate, oval or rhomboidal 1 
1 Calyx lobes hairy on the inner surface C.matura 
1 Calyx lobes glabrous on the inner surface C.delucida 
Crataegus ascendens Sarg. 
Ascending thorn 
Rhodora, 5: 141 
Shrub 6-10 feet tall with slender ascending branches bearing 
short, straight or slightly curved spines rarely more than an inch 
long; leaves thin, ovate or oblong ovate, at flowering time 1.5-2 
inches long, 8-15 lines broad, acuminate at the apex, rounded or 
cuneate at the base, finely and sharply serrate, with 4-5 acuminate 
