198 MISSOURI BOTANICAL GARDEN. 
(1864).—K. Koch, Dendr. 21:6 (1872).— Arcan- 
geli, Comp. Fl. Ital. 318 (1883).— Caruel in Parla- 
tore, Fl. Ital. 7: 125 (1886). — Dippel, Handb, Laub- 
holzk. 1:203 (1889).—Koehne, D. Dendr. 554 
(1893). — Bubani, Fl. Pyren. 2: 334 (1900).—Ha- 
lacsy, Consp. Fl. Graec. 1: 700 (1901). — Penkowsky, 
Derev. Kust. Ross. 3:19 (1901). — Schneider, Dendr. 
Winterstud. 216. f. 204 (1903). 
Periclymenun vulgare, Miller, Gard. Dict. ed. 8 (1768). — 8. F. Gray, 
Nat. Arr. Brit. Pl. 2: 488 (1821). ; 
Caprifolium sylvaticum, Lamarck, Fl. Frang. 8 3 365 (1778). 
Caprifolium distinctum, Moench, Meth. Pl. 501 (1794). 
L. odora, Salisbury, Prodr. Stirp. Hort. Allerton 138 (1796). 
Caprifolium Periclymenum, Delarbre, Fl. d’Auvergne ed. 2. 13129 
(1800). — Dumont de Courset, Bot. Cult. 23577 (1802).— Spach, 
Hist. Nat. Vég. 8 : 334 (1839). 
Caprifolium Germanicum, Roehling, Deutschl. Flor. ed. 2.23175 
(1812). 
L. Germanica, Dietrich, Fl. Weimar 94 (1800). 
L. Etrusca, Lejeune, Fl. Spa 2: 299 (1813), not Santi. 
Euchylia verticillata, Dulac, Fl. Haut. -Pyrén. 464 (1867). 
L. periclymena, St.-Lager, Ann. Soc. Bot. Lyon 8 3 129 (1880). 
Europe and North Africa: extending east to eastern 
Germany, Austria and Greece (Grisebach, Gansauge, 
Engler, Uechtritz, Winkler, Willkomm et al.). — Often 
cultivated as an ornamental vine (Arnold Arboretum, etc. ). 
A. Leaves glabrous or slightly villous beneath, usually obtusish. 
B. Flowers 4-5 cm. long. 
C. Leaves entire. 
D. Leaves slightly villous beneath, oval or ovate to elliptic; 
flowers yellowish-white often pinkish outside. 
Typical form. 
L. Periclymenum alba, Weston, Univ. Bot. Hort. 13 155 (1770). 
L. Periclymenum a vulgaris Aiton, Hort. Kew 1 ¢ 231 (1719). 
? L. Periclymenum villosa, Tenore, Syll. Pl. Fl. Neap. 104 (1831). 
L. pallidiflora, Gandoger, Fl. Lyon. 110 (1875). 
The following horticultural forms belong probably here ; 
the first has yellowish foliage and the second is a low 
