6 BOTANICAL GAZETTE [JANUARY 
p. 22) apparently did not examine a true nigra because he does not 
—— the stomata in the upper surface of the leaf, but says 
“unterseits Stomaten und Wachsanflug.” S. nigra, like S. Hum- 
boldtiana, possesses however “‘beiderseits Kutikularfalten und eine 
tie Anzahl von Stomaten.” 
. HumpBoipTiana Willd., Sp. Pl. 4:657. 1805; Kunth in 
Humb. oni Bonpl., Nov. Gen. Pl. 2:18, pls. 99, roo. 1817; Syn. 
Pl. Aequin. 1:364. 1822; Gay, Hist. Chile Bot. 5:384. 1849; 
Leybold in Martius, Fl. Bras. 47:227. pl. 71, 1855; de la Sagra, 
Fl. Cubana 3:232. 1853; Grisebach, Fl. Brit. W. Ind. Isl. 113. 
1864; Philippi, Cat. Pl. Vasc. Chile, 267. 188:x; MHieron., 
Pl. Diaph. Fl. Argent. 271. 1882; Fawcett, Prov. List Flow. Pl. 
Jamaica 37. 1893; Duss in Ann. Inst. Col. Marseille 3:107 (Fl. 
Phan. Antill. Frang.). 1897; Macloskie in Princeton Univ. Exp. 
Patag. 8': Bot. 325 (Fl. Patag.) 1903-6; S. magellanica Poir. in 
Lam. Encycl. Suppl. 5:66. 1817; S. falcata Kunth in Humb. and 
Bonpl., Nov. Gen. Pl. 2:19. 1817, non Pursh; S$, Humboldtiana, 
**§. falcata And. in K. Sv. Vet.-Akad. Handl. 6:17 (Mon. Salic.). 
1867; S. Humboldtiana 8 falcata And. in DC. Prodr. 16: 199. 
1868; S. chilensis Morong and Britton in Ann. N.Y. Acad. Sci. 
7:231 (Enum. Pl. Morong Paraguay). 1892, non Molina;} Seemen 
in Urban Symb. Antill. (Fl. Ind. Occ.) 4:193. 1905; Fawcett and 
Rendle, Fl. Jamaica 3:30. 1914. 
TYPE LOcALITy.—‘ Peru, prope Loxam”’ (leg. Humboldt and Bonpland); 
this is Loja in southern Ecuador. 
RANGE.—According to Moronc this willow “grows from the Amazon to 
Patagonia on both sides of the Andes.’’ It is difficult to say where it is really 
spontaneous, because it has been widely distributed by cultivation. Although 
3S. chilensis Molina, Saccio Storia Nat. Chili 169. 1782, is in my opinion an 
obscure plant. The author’s quotation runs: “Salix fol. integerrimis glabris lanceo- 
latis acuminatis,”’ and in the Italian text he says: ‘‘Il Salce, Salix chilensis ... - 
non differisce dall’ Europeo, che nelle foglie, le quali sono intiere, sottili, e di un verde 
giahligno: questo albero produce una gran quantita di manna tutti gli anni... . - 
Neither has S. Humboldtiana entire leaves, nor can I find any record of a willow 
producing ‘‘manna.” The name S. chilensis seems to be accepted for our willow 
only because there is no other willow in Chile except the cultivated S. babylonica L. 
which had not yet been introduced at Motra’s time. I strongly suspect that 
Motrna’s plant is no Salix at all. It is not mentioned by REICHE in his Productos 
Vegetales de Chile, r901, nor in ENGLER and Drupe, Veget. der Erde VIII (Grund- 
ziige Pflanzenwelt Chile). 1907. 
