SWNOPSIS OF THE FLORA OF COLORADO. 123 
high; leaves thick, flat, glabrous, 4. aeie: the lowest ovate-subcordate 
at ‘base, the rest ovate. lanceolat ate or oblong, acute, attenuate at base; pani- 
cle leat’y only at base; sara axillary and terminal, solitary, simple, 
s 0 e i i 
sessile 
jointed at the base and availing the valves; valves equal, orbicular, 
dee eply cordate, entire, closely reticulate-veined, destitute of a callus, be- 
coming a dilated. Leaves often 4/ long and 14/-2/ wide, on ra ather 
short petioles; valves bright rose-color at matur ity, 9-12” in ‘diameter; 
igi sepals finally deflexed, about equaling the ‘sinus of the valves, 
oa Harbour, “te 
s, DC. Prodr. 14, p.44. Stout, 3°-5° high; leaves — 
i IFOLI 
elongated, is, nadlate, the lowest oblong, subcordate, or ‘obtuse at 
base, 6’-15/ lon wide, long-petioled, the upper lanceolate, attenuate 
at each ond; ard “the uppermost linear; petioles flat above, with a thin 
linear mar rgin; panicle simple, leafless above, the racemes sessile; valves 
about 23” in diameter, broad-ovate, slightly cordate, obtuse, finely reti- 
culated, — without callosities —Hall & Harbour, saat! he Sty on 
ar Creek and Horse Shoe eee Coulter. pare 
UMEX SALICIFOLIU . Weinm.—Hall & Harbour, 496 anc a 198. Cation 
City, Brandegee. Denver, Dr. Smi i Colorado step Porter. Oro 
. pee of che Platte, Coulte Ctoes 
X MARITIMUS, L.—**Subi ‘Ipine?” Hall & Ririie ro Head of 
olen Cheek at 10,000 feet altitude, Coulter. het ioks Green 
ae ACETOSELLA, L.— Greeley, Greene. A 
ONUM ERECTUM,L. (P. aviewlare, Ti var. erectum, Roth.) Wat- 
son, pie of ola, At. Nat., 7, p. 664. Erect or ascending, elabrous, 1°29 
hig , pale or yellowish; leaves oblong or oval, 6-30” Jong, 
A 
usnally obeuad: flowers mostly 14 long, on more or less exserted pedi- 
cels; sepals rarely 6; stamens 5-6; achenium broadly ovate to lanceo- 
late, dull and granular or nearly smooth.—Around Denver, Dr. Smith. 
Canon City, Brandegee. North Park, Hayden. Weston’s Pass, Coulter. 
Colorado Springs, Porter. 
PoLy ae Banags po roma Mx.—Colorado Springs, Porter. On the 
stad near Deh ulte 
ie TE if; Mix: —Hall & meri 492; Meehan. Colorado 
neato Portel icra Madre Range, Cor 
OLYGONUM IMBRICATUM, Nutt. nia 1 c., p.665. Low, slender, 
often diffusely branched, 1/-8’ high; leaves narrowly linear; spikes 
dense ; a loosely imbricated, linear or oblong, 2-4” long, with some- 
narrow, scarious margin, acute; stamens 3 or 5; style one-third 
,. Alpine and subalpine.—Hall & Harbour, 493; 
“Bing sored on a en isc of the Rocky Mountains.” 
tr. TERRESTRE, Willd.—Near Denver, 
3 Port t, L., 
es ge Smith. Near Cokadde: ‘Borie’, Porter. 
POLYGONUM PENNSYLVANICUM, L.—Greeley, Gre 
POLYGONUM INCARNATUM, E]].—Canon On, Brandige: Plains of 
the Platte, Coulter. 
POLYGONUM VIVIP uM, L. 70 ocelot oS Near Denver, Dr. 
Smith. Clear Creek Caton, Coulter, / 
Potygonum Bistorta, L. DC. Prod. ie p. 125 “Rhizoma ar and 
twisted; stem S aabonls very simple; sheaths long ‘and striately nerved; 
leaves hibieoui vi puberulent beneath, the lowest cordate he “with 
@ long-winged petiole, the upper subsessile, the highest linear or abor- 
ri 
