'1-62 AKBOUETUM AND FllUTICETUM. PART IIJ. 



<ie Huffbii, wl)icl\ yave an excellent idea of their appearance in their native forests; the highest 

 these trees now remaining, estimated at upwards of 61) years of ape, are 51 ft. in height, with 

 heads S+ft. in diameter. At Toulon, in the Botanic Garden, a tree 20 years planted, is SO fl high. 

 In Saxony, at VVorlitz, a tree, (V) years planted, is 40 ft. high. In Austria, in Held's Nursery, at 

 Vienna, CO years planted, and 25 ft. high ; at Briick, on the Leytha, 48 years planted, and 80 ft. high, 

 with a head 48 ft. in diameter, close by water. In Prussia, at Sans Souci, 45 years |>1anted, 24 ft. 

 high. In Bavaria, at Munich, 24 years i)lanted, and 30 ft. high. In Hanover, in the Botanic Garden 

 at Gottingen, 20 years planted, and 40 ft. high. 



Commercial S/a/Ls/ics, In London, plants of the species are Is. each, of the 

 variety -V. /'. crispiim Is. Gd. each, and seeds of the species is. a quart. At 

 Bollwyllcr, plants of the smallest size of the species are 30 cents each, and 

 larger |;lants 2 francs. At New York, plants are 25 cents each, and seeds 

 1 dollar a quart. 



App. 5. Anticipated Species of Negundo. 



\ N. mcxicaiium Dec. is a native of Mexico, with trifoliate leaves, which grows to the height of 

 40 ft. It has been described under the name of A. tern^tum Moc. ; and also by De CandoUe, who 

 expresses a doubt as to whether it may not be a variety of A'. /'■ax'"itf>'ii'in- Seeds or plants of it 

 ought, if possible, to be obtained from Mexico. 



^ N. cochinchininse Dec. is a doubtful species, probably belonging to Sapindiiceic rather than 

 ^ceracece. It is a tree 25 ft. high, in the woods of Cochin-China, and would form a very desirable ad- 

 dition to the British arboretum. A variety of A^ /raxiniftilium (the leaves having their two lower 

 and their terminate leaflets ternaic) is mentioned by Dr. Hooker, as having been received by him 

 from Dr. Schwinitz in the state of dried specimens. {Fl. Bor. Amer., i. 114.) 



App. I. Other Kceracccc. 



■ Dubiiiea vulg&ris Hamilt. (altered from the Nepalese name), a shrub 6ft. high, a native of Nepal, 

 with elliptical, oblong, acutely serrated leaves, is, in all probability, hardy, and would add to the 

 variety of British collections. There no other species of this genus, and no other genus belonging 

 to the order Jcericeje has been yet discovered and recorded, either hardy or tender. 



CHAP. XX I If. 



OF THE HARDY TREES AND SHRUBS OF THE ORDER .ESCULA^CEtE. 



Identification. Lindl. Key. 



Si/iioiit/mes. t'astaneaceffi Lhik ; HippocastaneEe Dec. 



Distinctive Character. Calyx campanulate, 3-lobed. Ovary roundish, tri- 

 gonal. Seeds large and globose; albumen wanting. Embryo curved, inverted, 

 with fleshy, thick, gibbous cotyledons not produced above ground in germin- 

 ation. Plumule large, 2-leaved. Deciduous trees, with opposite digitate leaves. 

 The fruit large and bitter, sternutatory, abounding in potash and starch. The 

 bark astringent and tonic ; and the fruit containing aesculine, a febrifuge. 

 The genera are two, which are thus contradistinguished : — 



^'sculls L. Capsule echinated. 

 Px'viA Bo eh. Capsule smooth. 



Genus I. 



£ 



-lE'SCULUS L. The Horsechestnut. Lin. Syst. Heptandria Monogynia, 



Identification. Lin. Gen., No. 462. : Hayne Dend., p. 43. ; Dec. Prod., 1. p. 597. ; Don's Mill., 1. 



p. .562. 

 Synonymcs. //ippocastanum ToKm. ; Marronier d'Indc, f r. ; Rosskastanie, GVr. 

 Derivation. 'I'he word .E'sculus, derived from csca, nourishment, is applied by Pliny to a species of 



oak. which had an eatable acorn. The word Hippocftstanum, from hippos, a horse, and eastanca , 



