54 BOTANICAL GAZETTE [yory 
broadly oval to ovate, rounded at base and either subacute or obtuse 
at apex, entire, glabrous or with some scattering ciliate hairs closely 
ciliate on the margins with short incurved hairs, 15-25™™ long: 
flowers medium size, a 3-flowered cyme from the terminal pair oi 
leaves, a pair of flowers in the next pair of leaves, and sometimes 
another pair in the axils of the next lower pair of leaves—thus all 
the flowers except the terminal one are foliose-bracted: calyx glabrous, 
its lobes finely pubescent within: petals oval, about 12™™ long: 
stamens 30 or more: styles united for two-thirds of their length, the 
free portion as long as the abruptly enlarged stigmatic portion. 
This is most nearly allied to P. Lewisii Pursh, from which its smaller siz, 
smaller leaves, smaller flowers, and peculiar stigmas distinguish it. In P. Lew 
isii the styles are united throughout, the stigmatic portion as long as the style 
proper, the stigmatic line being broad and capping the summit of the stigms 
and then extending down to the styles in a narrowing line. P. intermedius 
seems to be a connecting species between the desert species of Utah and Colorade 
and those larger forms of the humid northwest. 
Philadelphus nitidus, n. sp.—Slenderly and divaricately branched: 
leaves rather few, shining and with glaucous hue on both sides, 
nearly glabrous above, minutely appressed strigose below, mostly 
narrowly lance-oblong, subacute at both ends, very short petioled, 
1-2°" long: flowers generally solitary at the ends of the branchlets: 
calyx cleft below the middle, hirsute on the outside, soft pubescent 
on the inside of the lobes: petals elliptic, entire, 8-ro™™ long, twice 
as long as the calyx lobes: stamens 30-40: styles distinct down t 
the ovary: stigmas short, slightly geniculate at junction with filament. _ 
__ The following collections of this species are at hand: H.N. Wheeler, no. 425 
(type), Sapinero, Colo., 1898; C. F. Baker, no. 266, Black Cafion, Colo., June 
27, 1901; M. E. Jones, no. 6303, Belknap, Utah, June 28, 1899. ’ 
LARAMIE, WyomInc. ; 
