1688 



AIIBOIIETUM AND FllUTICKTU.M. 



I'AUT III. 



being glutinous, in tlicir lioary a[)[)carancc, antl in the absence of tufts of hair 

 in tlie axils of the nerves of the leaves. It was introduced into England 

 in 1780, but has not been much cultivated. There :ire plants at Messrs. 

 Lodiliges's .'iOft. iiigh. It forms a very handsome tree, and well deserves a 

 place in ornamental plantations. 



yariedfs. 



2 A. L 2/«n'»wVrt Lodd. Cat.,ed. IH.'JG. — The leaves are slightly laciniated. 



There are trees in the Horticultural Society's Garden, and at 



Messrs. Loddigcs's. 

 ■ If A. i. 3 i^lai'icn; A. glaiica Miclix. N. Anicr. S^/Iv., Lodd. Cat., ed, 183G ; 



//etula incana var. glaiica Ai/. ; Black Alder, Amcr., has the leaves 



dark green above, ami glaucous beneath : the petioles are reddish. 



According to Michaux, tiiis forms a tree, in the United States, from 



18 ft. to 20 ft. high. This is one of the most beautiful kinds of the 



genus. 

 t A. i. 4 anguldta Ait. — Leaves green underneath, with the petioles green. 



Other Varieties. A. amcricdna Lodd. Cat., A. cnitadcnsis Lodd. (.'at., 

 and A. riibra Lodd. Cat., appear to belong to this species ; but the plants 

 in the Hackney arboretum arc so small, that we have not been able to 

 satisfy ourselves that they are sufficiently distinct to constitute varieties. 



it 4. A. sERRULA^TA WHld. The saw-leaved Alder. 



Idenlification. Willd. Sp. PI., 4. p. aia ; Baum., -i. 21. ; N. Du Ham., 2. p. 216. ; Pursh FL Amer. 



Sept., i. p. &l". ; Michx. N. Amer. .Syl., 2. p. \\i. ; Lodd. Cat., cd. 18o6. 

 Si/noni/mcs. .Bitula serruHita Ait. Hurt. Kcw., 3. p. 338. ; B. rugusa Ehrh. Bt'itr., 3. p. 21 .; Du 



Rut Ilarh. Baum., 1. p. 176.; H'ahg. Amer., p. 86.; 'i A. amoricana Lodd. Cat., ed. 1836; ^ A. 



caiiadi-nsis Lndd. Cat., 18.i6 ; common Alder, Amer. ; Hazel-leaved Alder. 

 Enpravings. Wang. Amer., t. 29. f. (iO. ; Abbott's Insects, 2. t. y2. ; Michx. N. Amer. Syl., t. 75. 



f. 1. : aiid out Jig. l.">4+. , on which are exhibited the larva, pupa, and perfect insect of the .Viictua 



( Acronycta) ha-stilifera, /•'hala;''na hastulifera Abb. and Smith, the American alder dagger moth, 



which inhabits this tree. 



Spec. Char., Sfc. Leaves obovate, acuminate; veins and their axils hairy on the 

 under side. Stipules elliptic, obtuse. {Willd. Sp. PL, iv. p. 336.) A shrub. 



from (j ft. to 10 ft. high ; a native of North America, in swamps and on river 

 sides. According to iSlichaux, it is freejuent along the sides of brooks, but 

 al)ounds most in places covereil with stagnant water. Its leaves are of a 

 beautiful green, about 2 in. long, oval, distinctly furrowed on the surface, 

 and doubly denticulated at the ed^je. The wood, when cut into, is white ; 



