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“CHAP. CIII. SALICA‘CE. SA LIX. 1529 
Group vii. Nigra. 
Extra-European Kinds allied to the Kinds of one or all of the three preceding 
Groups. 
lala 
Of the willows of Europe Koch has (Comm.) associated the kinds of Mr 
Borrer’s groups Pentandre, Fragiles, and A’lbe into one group, which he 
has named Fragiles; and he has pointed out and described, as extra- 
European kinds belonging to it, S. occidentalis Bosc, S. nigra Muhl., S. 
babylonica L., S. octandra Sieber, and S. Humboldtidna Willd. Mr. 
Borrer has included S. babylénica L. in his group Fragiles. The rest are 
here collected ina group by themselves, to which is added S. /igdstrina 
Michx. jun., from the notice by Mr. Forbes, and also by Michaux, that it is 
similar to S. nigra. 
% 28. S. n1‘cra Miihlenb. The black, or dark-branched American, Willow. 
Identification. Miiblenb. in Nov. Act. Soc. Nat. Scrut. Berol., 4. p. 237. t. 4. f. 5. ; Sims and K6nig’s 
Ann. of Bot., 2, 65. ;. Willd. Sp. PL, 4, p. 657.; Michx, N. Amer. Syl., 3. p. 78.5 Pursh Fl. Amer. 
“4% 2. p. 614. ; Smith in Rees’s Cyclo., No. 11.; Forbes in Sal. Wob., No. 152.; Koch Comm., 
p. 17., note. 
Synonymes, S. caroliniana Michr. Ft. Bor. Amer., 2. p. 226. ; S. pentandra Walt. Fl. Car., 243. ; 
S. vulgaris . Fl. Virg. 
The Sexes. Both sexes are noticed in the specific character. Willdenow had seen the male alive, 
and both sexes in a dried state. 
En avings. Nov. Act. Soc. Nat. Scrut. Berol., 4. t. 4. f. 5.; Ann. of Bot., 2. t. 5. f.5.; Michx. N. 
mer. Syl, 3. t. 125. f. 1., without flowers ; Sal. Wob., No. 152., the leaf; and fig. 152. in p. 1650. 
Spec. Char., &c. Leaves ovate-lanceolate, pointed, serrated, green on both sides, glabrous, except a 
downy rib and footstalk. Catkins accompanying the leaves, villous. Stamens about 5, bearded at 
the base. Ovary stalked, ovate-lanceolate, glabrous. Stigmas divided, the length of the style. 
(Sal. Wob., p. 280.) Catkin upon a seeming penduncle, which is a leafy twiglet. Stalk of the cap. 
sules 3—4 times as long as the gland. Stigmas ovate, emarginate. (Koch Comm., p. 17., note *) 
Branches of a dark purple colour. Disk of leaf 2 in. or more long. (Willd.) _A tree, 20 ft. high, 
with smooth branches, brittle at the base ; a native of North America, from Penns fvania to Vir- 
ginia, on the banks of rivers. Introduced in 1811, and flowering in May. Mr. Forbes observes 
that S. digdstrina of Michaux differs principally from S. nigra in its larger stipules, which resem- 
ble, as well as the leaves, those of S. triandra. (Sal. Wob., p. 28.) There are plants in the Hackney 
and Goldworth arboretums, and at Woburn Abbey. 
z 29. S. Humsoxiptz4‘na Willd. Humboldt’s Willow. 
Ientification. Willd. Sp. Pl., 4. p. 657.; Smith in Rees’s Cyclo., No. 8.; Humb. et Bonp. Nov. 
Gen. et Sp. PL, 2. p. 176.; Forbes in Sal. Wob., No. 8; Koch Comm., p. 18., note ; Lodd. Cat., 
The Sexes. Both sexes are figured in Sal. Wob., copied from Humb. et Bonp. Nov. Gen. et Sp. Pi. 
Koch has noticed“(Comm., p. 18., note) that in specimens which he had seen there were andro- 
gynous catkins mixed with catkins of female flowers. 
ere s. Humb. et Bonp. Nov. Gen. et. Sp. Pl., t. 99. and 100. ; Sal. Wob., No.8.; and jig. 8. 
p- 
Spec. Char., §c. Leaves, linear, acuminated, finely serrated, smooth. Catkins 
appearing late, after the expansion of the leaves. Flowers polyandrous. 
Ovary stalked and glabrous. (Willd. Sp. Pl, iv. p.657.) Branches brown, 
shining, erect, flexible. (Sal. Wob., p.115.) A native of Peru, and culti- 
vated in various places in South America. It was introduced in 1823 ; but, 
being somewhat tender, it had not, in 1829 (the date of the Salictum Wo- 
burnense), produced its flowers in England. Mr. Forbes finds, at Woburn, 
that it requires the protection of a green-house; but, in the Horticultural 
Society’s Garden, it stood out againsta wall for 6 years ; and, though it was 
killed in the spring of 1836, Mr. Gordon is of opinion that it was not 
altogether owing to its tenderness. There are plants in the collection of 
Messrs. Loddiges. 
% ?¥ 30. S. BonpLanpi4‘Na Humb. et Bonpl. Bonpland’s Willow. 
Identification. Humb. et Bonpl. Nov. Gen. et Sp. PL, 2. p. 20. ; Forbes in Sal, Wob., No. 9. 
The Sexes. Both sexes are figured in Sal. Wob., copied from Humb. et Bonp. Nov. Gen. et Sp. Pl. A 
plant in the Woburn collection had not flowered in 1829, 
cnet Humb. et Bonpl. Nov. Gen, et Sp. PL, t. 101, 102.; Sal. Wob., t.9.; and fig. 9. in 
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