572 RYDBERG: Rocky MOUNTAIN FLORA 
Gaura coloradensis sp. nov. 
Herbaceous, biennial or perennial with fusiform root; stem 
5-7 dm. high, strict, but somewhat branched, finely strigose, more 
or less red; leaf-blades narrowly oblanceolate, 5-10 cm. long, 
gradually tapering below into a short petiole, or the upper sessile, 
callous-denticulate, finely strigose; inflorescence slender and 
rather lax, 1.5-2 dm. long ; hypanthium about 2 cm. long, finely 
strigose ; sepals about 1 cm., linear-lanceolate, reflexed ; petals 
about 8 mm. long, spatulate, pink, short-clawed ; filaments about 
equaling the petals; anthers brown, about 4 mm. long; fruit 
8-10 mm. long, fusiform, 4-angled, tapering below into a short 
and rather slender stipe-like base. 
In habitat and pubescence this species resembles most G. Pitch- 
eri, but the leaves are oblanceolate instead of lanceolate and the 
fruit is that of G. sinuata. G. coloradensis grows in meadows at 
an altitude of about 1,500 m. 
CoLorapo: Fort Collins, 1895, Cowen (type); east of College, 
1897, Crandall 1308 ; east of Poudre, 1895, Cowen 1632. 
- Suida interior sp. nov. 
Cornus Baileyi Coult. & Evans, Bot. Gaz. 15: 37, in part. 1890. 
A shrub 2-5 m. high; bark of the old stems grayish, of the 
young shoots brownish ; young shoots, petioles and inflorescence 
densely pubescent with short villous hairs ; leaves elliptic or oval, 
acute at both ends, 5-9 cm. long, finely short-strigose on bo 
sides and more or less villous on the veins and in their angles be- 
neath ; hypanthium strigose ; sepals minute, about 0.5 mm. long 
or less ; petals linear-lanceolate, about 4 mm. long; fruit white, 
about 5 mm. in diameter ; stone elliptic, slightly oblique, longe! 
than broad, nearly smooth. 
This species was included in the original description of Cornus 
Baileyi, but is quite different from the type thereof from the lake- 
‘shores of Michigan. This has conspicuous sepals and has a more 
flattened stone, channeled on the edge and with square shoulders. 
In reality, S. zzterior is much more closely related to S. stolon- 
ifera (Cornus stolonifera Michx.), especially the western variety 
described below, but differs in the villous pubescent instead of 
sparingly strigose twigs and inflorescence. In S. stolonifer . and 
its variety the stone is usually broader than long and very oblique: 
S. interior grows on river banks west of Mississippi River. 
