1522

ARBORETUM AND FRUTICETUM.

PART III.

2 25. S. Plrsii/./.v.v Borrer. Pursh’s Willow .

Identification. Mr. Borrer suggests that this species may be called S. Purshidnn, as there is anolder S. amblgua. (Borrer in a letter.)

Synonyme. S. ambfgua Fursk FI. Amer. Sept., 2. p. 617., Smith in 'Rees's Cyclo., 36., Forbes in Sal,Wob., No. 154., Hook. Br. FI ., ed. 2., incidentally under S. amblgua Ehrh.

The Sexes. The male is described in Sal. Wob.

Spec. Ckar.,$c. Leaves lanceolate, pointed, serrated, glabrous; shining above,glaucous underneath. Footstalks stout, glandular at the summit. Stipules half-heart-shaped, serrated, deciduous. Catkins accompanying the leaves.Stamens 2. Bracteas rounded and concave. (Sal. Wob., p. 282.) A nativeof North America , in low grounds; and flowering in March and April.This appears to be a rapid-growing tree, with round, greenish-brown,smooth branches. The leaves are from 5 in. to 6 in. long, and about ljin,in breadth, somewhat resembling those of S. RusselE-raa, but much broader,and more obtuse at the base; wherein they resemble those ofS. fragilis;they, however, differ from this species by their very white glaucous hueunderneath; the serratures are, likewise, much coarser, and they are glandu-lar, which is very obvious in the young leaves, that are generally furnishedwith two obtuse glands at the insertion of the footstalks, which sometimesrun into small leaflets. Footstalks stout, glabrous. Catkins appearingwith the leaves. Stamens 2 in a flower. There are plants under the nameof S. amblgua in the Hackney and Gold worth arboretums ; also at WoburnAbbey , and Henfield.

App. i. Fragiles introduced, but not yet described, or of doubtful

Identity.

S. adscendens in Donald’s Nursery. This kind is extremely dissimilar to the S. adscendens ofEng. Bot. and Sal. Wob. S. bigimrms' Lodd. Cat. , ed. 1836. Specimens were received from dieHackney and Goldworth arboretums, which appear quite different from the S. bigemmis of Hoff*rpanri, which is identified with S. daphnol&es Pillars. S. decipiens, fem., Lodd. Cat. , ed. 1836. S.fragilis and S. murina Lodd. Cat. , ed. 1836. S. rubra G. Lodd.

App. ii. Fragiles described, but not yet introduced, or of doubtful

Identity with introduced Species.

S .fragilis, mas et fem., Host Sal. Aust., 1. p. 5. t. 18,19., FI. Aust., 2. p. 635. S.fragilior, masetfern.,, Host Sal. Aust., 1. p. 6. t. 20,21., FI. Aust., 2. p. 636. S. fragitissima, mas et fem., Host Sal.Aust., 1. p. 6. t. 22, 23., FI. Aust., 2. p. 636.; syhon. S. fragilis Host Syn p. 527. S. palustris, maset fem., Host Sal. Aust., 1. p. 7. t. 24, 25. $ FJ. Aust., 2, p. 637. S. capensis Thunb. FI. Cap., 1.p. 139., Smith in Bees's Cyclo., under No. 42., resembles S. babyldnica, and is probably a varietyof that species. S. subserrata Willd. Sp. PI., 4. p. 671., Smith in Rees's Cyclo., No. 45. {S. Safsa]b&'lledi Forsk. Cat. PI. iEgypt., 76.), is described as having a leaf very like that of S. babylomca.( Rees's Cyclo.)

Group vi. AHbce Borrer.

Trees of the largest Size, with the general Aspect of the Foliage whitish.

Stamens 2 to. a flower. Ovary glabrous. Flowers loosely disposed in the

catkin. Leaves lanceolate, serrated with glanded serratures; hairy, f s P e ‘eially while young, with appressed silky hairs, which give to the foliage*light or whitish hue. Plants trees of considerable height. (Hook. Sr. i • >ed. 2., adapted.)

2 26. S. a Aba L. The whitish-leaved, or common white, Willow ,tion. Lin. Sp. PI., 1449.; Willd. Sp. PI., 4. p. 710.; Sm. Eng. Bot., t. 2430.; Bug.

iv. 0^1 _tpi UiRorn lit. 1. t

-uni. j. i., X1-X0. , m mu. op. ri.. •*. p. /LU. ; olu. XL-UU. uuu, *. — > - -

p. 231. j Forbes in Sal. Wob., No. 136.: Hook. Br. FI ed S ■ Mackay FI. Hibern., pt v-

ARRI1R r. OtZ/i . Uoot C.,I A...1. 1 _ r. I Fn ._ o_i. £> v% fi.

^ " mm.,

Eng-

out. trt/u., hush out. sites t., auu tiayne AOOUa. T T ahbild-,

Engravings. Eng. Bot., t. 2430.; Sal. Wob., No. 136.: Host Sal. Aust, 1.1. 32, 33.; Hayji * ]ast. t. 197.> our figs. 1314. and 1315.; fig. 136. in p. 1629.; and the plates of this treeVolume.