Z A N 



zn 



ZAXTHOXYLUM, a genus containing 

 plants of the hardy and tender exotic 

 shrubby kinds. 



It belongs to the clx^s and order Dicccia Pen- 

 tandria. 



The characters are : that the male flowers have 

 the calyx a perianthium deeply cut into rive oval 

 coloured pans : there is no corolla : the stamina 

 have live awl-shaped erect filaments, with didv- 

 mous, sulcated, roundish anthers : — female 

 flower, cal\x as the male: there is no corolla: 

 the pistillum, a roundish gennen, an aw 1- 

 shaped style, with an obtuse stigma: the peri- 

 carpium, an oblong capsule, formed of two 

 valves and one cell, containing a single smooth 

 roundish seed. 



The species cultivated are: 1. Z. Claua Her- 

 culis, Canada Tooth-ach Tree, or Hercuks's 

 Club ; 3. Z. trifoliatum, Chinese Tooth-ach 

 Tree. 



The first grows to the height of twelve feet, 

 with a rough bark armed w ith short spines : the 

 ■eaves are winged, of a dark-green colour, 

 growing irregularly on the branches ; each con- 

 sist< ot four or five pair of spear-shaped folioles, 

 which are terminated bv an odd one : the Bowefs 

 come tut from the end of the branches in loose 

 panicles; they are apetalous and have no great 

 appearance, and succeeded bv unilocularcapsule-, 

 containing the seeds. It is a native of North 

 America. 



There is a variety ; the Ash-leaved Tooth-ach 

 Tree, with oval-oblong folioles, and prickly 

 mid-ribs. 



The second species rises with a woody stem, 

 branching several feet in height, being set with 

 trilobate leaves, composed of three egg-oval 

 folioles. It is a native of Ch na. 



Ciin ri . — These plants may be increased by 

 steel and layer*. 



Tin. seeds should be sown in the spring, either 

 in an ea^i border, or in pots placed in the morn- 

 ing c un all the summer, bung sheltered in a 

 frame iu winter j and in the spring following re- 

 moved u. ilu full air till October, giving pn 

 waterings all the summer; and. towards wk 

 be placed again under shelter from fro.-it till 

 Martli, when the young plants may be p< ttLd 

 separately ; and thus continued for a vcar <>r 

 two, being sheltered in the winter, when they 

 may be transplanted into the shrubbery, where 

 they are to remain. 



The layers of the voung wood may be laid 

 down in autumn or early spring, and when they 



have stricken good root be taken off and managed 

 as the seedlings. 



They also succeed hy cuttincs in spring or 

 summer, planted in pots, assisted b) a hot-bed, 

 in which they soon strike, when they should be 

 inured to the lull air ; and the young plants will 

 be fit for planting oat in the autumn, or the 

 spring following. 



The Bret is a very ornamental plant in the 

 borders and other dry parts of shrubberies, and 

 the latter among potted plants in the green house 

 collections. 



Zi.A, a genus containing a plant of the hardy 

 herbaceous ann.ua! kind. 



It belongs to the class and order Mmicccia 

 Triunarta, and ranks in the natural order of 

 Gramivete. 



Thl characters are : that male and female 

 flowers are separate on the same plant; loosely 

 disposed ; the calyx, a bivalve, two-flowered 

 husk : the corolla, two oblong valves, the out- 

 1 one obtuse and bellied, and the interior 

 bidenlcd at top, and are inclosed in the calyx, 

 with a very short, diphyllous nectarium : the 

 stamina,, three capillary filaments in the males, 

 with bifid prismatic anthera?, opening at top; 

 the female flowers are closely collected in a spike 

 below the males on the same plant : the calyx a 

 single- flowered husk, with two valves; with a 

 corolla, a glumose husk, and four membrane- 

 ous unequal valves : the pistillum, a very small 

 germen, slender pendulous style, and simple 

 Stigma: there is no pericarpium; many com - 



fuissed, roundish seeds, immersed in an ob- 

 ong, thick five- angled receptacle, forming to- 

 gether a long, thick, close head of corn. 



1 be ; |Kcies cultivated is ZMays, Maize, or 

 Indian Corn. 



It rises with a large, strong, herbaceous stem, 

 ten or twelve feet high, irarnished with long, 

 broad, pendulous leaves : mate flowers at the 

 upper part of the stalks, in Spil '. or ten 



inches long; and females arising at the axil I 

 of the leaves below the males, in long, close, 

 thick spikes, covered with thin lea.' suc- 



ceeded by numerous seeds placed round (he long 

 reeq tacfe in a compact order. Native ot America. 



There are varieties ; with yellowish-white 

 . with deep yellow seeds, and with purple- 

 blue <eeds. 



Culture. — These plants may be raided Lv sow- 

 ing seed iu the spring, as March or April, in a 

 drj warm situation, where the plants are in- 

 tended to remain, in patches, ol two or th:ee 



