BASTARD IRON-WOOD. 
11 
on the banks of the Arkansas, in the lower settlements, 
affecting dry and light soils at no great distance from the 
stream. It grows erect, branching towards the summit, 
and forming a roundish top. The height is about that of 
an ordinary apple tree, and the diameter about a foot or 
18 inches; the stem is, as usual, rough with prismatic 
acute excrescences, which in an earlier stage of growth 
have been mere thorns. That it must be a very different 
species from the preceding, is evident by the climate it 
inhabits ; the other no where extends beyond the warm 
sea-islands of South Carolina, this grows in a climate sub- 
ject to severe frost and snow, as I experienced in the winter 
of 1819. 
The leaves are nearly twice as long as in the southern 
species, they are about a foot in length, with often as 
many as 8 pair of leaflets. The leaflets are about 3 inches 
long and an inch wide, very distinctly acuminated, with the 
petioles pubescent, as well as the midrib of the leaves 
above and beneath, and in a young state the whole upper 
surface is puberulous. The prickles are small and scattered; 
the naked part of the common petiole rather more some- 
times than 2 inches long. The leaflets are also scarcely 
at all oblique, never falcate, and the two sides from the 
midrib nearly of the same breadth. The panicle is loose 
and many flowered, the capsules mostly 1, rarely 2, and 
shortly stipitate. 
BASTARD IRON- WOOD. 
ZANTHOXYLUM Pterota, foliis pinnatis, foliolis obaoatis emarginatis, 
petiole communi marginato articulato inermi. Willd. Sp. PI. 2, p. 
666, (under Fagara.) 
