460 POLYGONACEAE 
leaf-blades broadly ovate, varying to elliptie-ovate, deltoid-ovate, or hastate- 
ovate, 5-15 em. long, finely reticulate, usually truneate at the base: panieles 
2—11 em. long, the branches finely pubescent: stipe-like base of the hy ypanthium 
i i . lo 
longer than the pedicel: calyx white or r sepals oval an 
nthesis: achene ellipsoid, narrowed to both ends, about 2.5 mm isi black, 
shining (JAPANESE-KN ITADORI.)—Waste-places, woods, and f 
rows, various provinces, locally escaped’ from 2: e . S. from 
N.C. N. Nat. of Japan.—Sum.—fall.—A very per well as à vigorous 
plant. It rapidly forms large colonies by the Baas branched see A 
16. CORCULUM Stuntz. Perennial vines with partly woody stems. 
Leaves alternate: blades ovate to hastate. Flowers borne in spreading or 
diffuse panicles whose branches terminate 
in tendrils. Sepals 5 or 6, the 3 outer ones 
conspicuously accrescent, ultimately envelop- 
ing the fruit as 3 broad wings. Stamens 
7—9; filaments united at the base, alternat- 
ing with small staminodia; Stigmas 3, eapi- 
te. | Achenes ie ie ineluded in the 
sepal-wings.—Abo species, natives of 
Mex. and C. A 
1. C. leptopus (H. & A.) Stuntz. Leaf- 
blades ovate in outline, more or less hastate, 
the larger ones 10—15 cm. long, acuminate, 
somewhat crisped and undulate, be at the base: a rose- ou 
purplish, the outer ones peser cordate at the base, becoming 15-18 mm. lo Dn. 
achene 8-9 mm. long, the body beet. the beak 3- angled —(MOUNTATN-ROSE. 
ROSA-DE-MONTANA. RAL-VINE. ri ALLAHASSEE-VINE. )—Hammocks, 
up dece and waste-places, Lm Fla. to Ga. Nat. of D Am. Gr. I., Mex., 
C. A., S. A.) —A1l year.—Widely gr a ph an ornamental v 
17. BRUNNICHIA Banks. Woody tendril-bearing PT Leaves alter- 
nate, the ocreae obsolete. Flowers borne in branching panicles. Sepals 5, sur- 
mounting the hypanthium which enlarges and 
develops a wing which is decurrent on its 
pedicel-like base. Stamens usually 8. Stig- 
mas 3, each 2-cleft. Achene 3-angled, in- 
eluded in the dry hypanthium.—Two known 
species, the following and one in Africa. 
1. B. cirrhosa Banks. Stems high-climbing, 
much-branched, sometimes 2 œ k: 
leaves deciduous m blades Dedi to dod 
lanceolate, cris . long: peri bee 
d ze oc ay lore. the sepals im about 
5 long: hypanthium ube and 
pediceltie bord pond elongated, the XE 
7— . lon 
TM ' Buckw "Buck- VINE. ajo ostly on river-banks, Coastal 
Plain and ee “adi. petu Fla. to Tex., Mo., Ill, and S. C.—Spr.- 
18. COCCOLOBIS P. Br. Evergreen shrubs or trees. Leaves alternate, 
the oereae cylindric or funnelform. Flowers borne in spikes or racemes. Sepals 
