1918] SCHNEIDER—AMERICAN WILLOWS 119 
RICHARDSON’s Appendix. Later, in the synonymy of S. anglorum 
Cham., I shall give the full and exact quotations of S. arctica Br. 
The earlier S. arctica Pall. has also been overlooked by Kocu 
(1828), who mentioned only Brown’s species. The first author 
who recognized the two discrepant arctica seems to have been 
MEYER (De Plant. Labrad. 32. 1830), where in a note to S. arctica 
Br. he says, “Quid est Salix arctica Pallas (florae rossicae II. 
pag.170 editionis minoris)? Nullibieam vel ut peculiarem speciem, 
vel ut synonymon apud botanicos memoratam inveni.” In 1831 
CHAMIsso (Linnaea 6:541) proposed the name S. anglorum for 
S. arctica Br., non Pallas; see under S. anglorum. 
In 1832 TRAUTVETTER, in his valuable study ‘De Salicibus 
frigidis Kochii,” described the 3 following species: S. crassijulis 
Trev., S. diplodictya Trvt., and S. torulosa Led. Of these in 1833 
(in LEDEBOouR, Fl. Alt. 4:283) he referred S. crassijulis and S. 
torulosa as synonyms of S. arctica Pall., which had not been men- 
tioned by him in 1832. In this year he described and figured only 
a S. arctica Br., which in 1833, however, he says is nothing but 
a synonym of S. glauca L. In Mrippenporrr, Reise Sib. 1°:27 
(Florul. Taimyr.), TRAUTVETTER again changed his opinion, say- 
ing, “Sal. arcticam Pall. et Sal. arcticam R. Br. unam eandemque 
Speciem sistere opinor. Planta, quam in dissertatione de Salicibus 
frigidis N. 7. tab. VI. sub nomine Sal. arcticae R. Br. proposui, ad 
Sal. glaucam L. referenda est nec sistit veram Sal. arcticam R. Br., 
uti e descriptione cel. R. Brownii in Fl. Melv. l.c. elucet.” See 
also under S. anglorum. 
In 1849-51 LepEBour (Fl. Ross. 3:619) included under S. 
arctica Pall. Brown’s species as well as TRAUTVETTER’S 3 species 
of 1832, and also added to S. arctica such forms as var. minor 
(S. phlebophylla And.) and var. leiocarpa (S. rotundifolia Trev.). 
LEDEBOUR seems to have been the first author who mentions 
S. anglorum Cham. in the synonymy. 
In a strange way the forms related to S. arctica have been 
treated by ANDERSSON (DC. Prodr. 167: 285. 1868), who, in 1858, in 
his previous work on North American willows, only mentioned 
S. arctica Br. as a “species difficile sane definienda, quasi inter 
S. myrsinitidem et glaucam prorsus media et formas plures ambiguas 
