14 JOURNAL OF THE ARNOLD ARBORETUM [vol. ii 



however, liad been applied by Borrer in 1830 to a group of European Wil- 

 lows whieli to-day is known as sect. Cai)rcae. 



I do not wish to say that the group of S. pctiolaris and S. scricca and 

 that of S, Jnnnilis are so closely connected that they have to be united in 

 one section but there is a great similarity in the floral characters of both. 



Possibly even S, Leviiiwfiii niiglit be placed in lliis section, but it seems 

 in some res])ect to have a closer relationship with the species of section Ful- 

 rae of which T shall speak in my next note. The synonymy of section Gri- 

 seae is as follows: 



Sect. Griscae Borrer apud Hooker, Brit. Fl. 419 (1830). — Barratt apud 

 Hooker, Fl. Bor.-Am. ii. 148 (1839); Sal. Am. (1810) sect. 3. — Sect. 

 Cinereae Barratt, 1. c. sect 1, non Borrer 1830, nee liarratt 1838.^ — Sect. 



* * 



Argcnteae Andersson in Ofv. Svensk. Vet.-Akad. Fiirh. xv. 12G (1858), pro 

 parte, non Koch. — Sect. Argenteae s. Repentes Andersson in De CandoUe, 

 Frodr. xvl- 233 (1868), pro j)arte. — Sect. Repentes Zabel apud Beissner, 

 Schelle et Zabel, Handb. Laul>holz-Bcn. 31 (1903). — Sect. Argenteae, sub- 

 sect. Repentes Schneider, 111. Ilandb. Laubh. i. Gt (1904), pro i)arle. 



In a key I shall show later the differences between the groups and also 

 between the species. 



1. S. sericea Marshall, Arbust. Am. 140 (1785); Cat. Arb. Arl)riss. 223 

 (1788), — Muhlenberg in Neue Schr. Ges. Nat. Fr. Berlin, iv. 240, t. vi. fig. 8 

 (1803).— Carey apud Gray, Man. 42G (1848). — Andersson in Froc. Am. 

 Acad IV. CG (Sal. Bor.-Am. 21) (1858). — Bcbb apud Watson & Coulter, Gray 

 Man. ed. (n 483 (1890). — Macoun, Cat. Am. Fl. 455 (1886). — Brilton & 

 Brown, 111. Fl. i. 499, fig. 1188 (189G); ed. 2, 598, fig. 1469 (1913). —Ball 

 in Froc. Iowa Acad. Sci. vii. 149, t. 12, fig. 10 (1900); in Elys. :\rar. iii. 30, t. 

 VI. fig. b. noiO). — Schneider, 111. llandb. Laubh. i. G4, fig. 15 g, 21 m-m' 

 (1904). — Brilton, Man. 318 (1905). — Fortcr, Fl. Fenn. 101 (1903).— 

 Griggs in Free. Ohio Acad. Sci. iv, 302, t. 11 (1905). — Robinson & Fernald, 

 Gray's Man. ed. 7, 326, fig. 662 (1909). — Von Seemen apud Ascherson & 

 Gracbcner,Syn.Mitteleur. Fl. iv. 130 (1909). — SchafTner in Bull. Ohio Biol. 

 Surv. T. 199 (Cat. Ohio Vase. Fl.) (1914). — S. gn,sea \Yilldcjiow, Sp. Fl. 

 IV. 699 (18(f5). — Fursh, Fl. Am. Sept. ii. 616 (1814). — Foiret in Lamarck, 

 Knc. Sui^pl. VI. 64 (1817). — Barratt, Sal. Am. no. 10 (1840). — Koch, 

 De Sal. Eur. Comm. 21 (1828), excl. var. — Loudon, Arb. Brit. in. 1533 

 (1838). — Andersson in Ofv. Svensk. Vet.-Akad. Forh. xv. 126 (1858). — 

 >S. argentea Dumont de Courset, Bot. Cult. ed. 2, vi. 395 (ISll), doubtful. — ■ 

 ? S. roi^viarhnJoJia Fursh, Fl. Am. Sept. ii. 612 (1814), non Linneaus. — 

 Elliott, Sketch Bot. ii. 668 (1824). — S. pennsylvaniea Forbes, Salict. Wob. 

 189, t. 95 (1829). — S. petiolaris var. grlsea Torrey, Fl. N. York n, 207 

 (1843). — S. petiolaris * S, sericea Andersson in Svensk. Vet.-Akad. Handl. 

 VI. 110, t. VI. fig. 61 ** (Monog. Salic.) (1867). — S. petiolaris €, sericea An- 

 dersson apud de Candolle, Prodr. xvi.'^ 235 (1868.) 



This species was described in 1785 ])y ^Marshall in a short but sufficient 

 manner. The type probably came from Chester County, Fennsylvania. 



