1^72 ARBORETUM AND FUUTICETUM. I'ART IJI. 



from a bud peculiar to it ; the flowers of the group situated each upou a 

 peduncle, or each upon a pedicel, and disposeil a few together upon short 

 peiluiK'lcs, or bituatcd in both modes. Flowers bisexual, or a few of them 

 male: both kinds u|)on one plant. C'aiyx reddish, distinct from the ovary, 

 top-siiaped, or bell-shaped, of one piece, but having oor 4 — 8 segments, which 

 are imbricate in iestivation ; remaining until the fruit falls. Stamens as 

 many as the segments ; inserted into the lower part of the calyx, oppositely 

 to the segments, and prominent beyond them : anthers opening lengthwise, 

 outwardly (Smi//i), mwardly (7'. Xces ab Esenbeck). Ovary elli])tic- 

 oblong, compressed, cloven at the summit, having two cells and a pendulous 

 ovule in each. Style very short, or there is not one. Stigmas 2, acuminate, 

 villous on the inner face. — Fruit a samara, and this compressed, more or 

 less round or oval, and having the wing-like ()art membranous, broad, and 

 present all round, except in a notch, whose base is the place of the attach- 

 ment of the stigmas. Seed: 1 in a samara, pendulous: in many instances, 

 it is not i^erfected. Embryo not attended by albumen, straigiit, its radicle 

 uppermost. — Species several : wild in Europe, North America, and India; 

 one or more in Asia, one in China. Trees : some of the species attaining 

 great size and age. Bark rugged. Wood hard. Branches twiggy. Flowers 

 small. Leaves alternate, in 2 ranks, feather-veined ; in most, unequal at 

 the base, annual, serrate, and harsh to the touch. Stipules oblong, 

 deciduous. Leaves within the bud folded lengthwise, in 2 portions, 

 ujjright, with scales between leaf and leaf. (Z". Nccs ah Esenbeck, Gen. 

 PL Fl. Germ. ; Smith, Eiigl. Flor. ; Duhy et Decand. Bot. Gallic. ; and 

 observations.) 



Pla'ner./ Gmelin. Sexes polygamous, or each in a disti>ict flower; in each 

 case, upon the same plant. — Female and bisexual flowers. Calyx bell-shaped, 

 distinct from the ovary, membranous, green, of one piece,but having jciliate 

 lobes. Stamens, in the bisexual flower, A — .5 less developed than those in the 

 male flower. Ovary top-shaped, villous. Stigmas 2, sessile, diverging, white, 

 pimpled. Fruit roundish, gibbous, pointed, dry, 2-celled, each cell contain- 

 ing I seed. — Male flower. Calyx as in the female and bisexual flowers. 

 Stamens 4 — 5, inserted near the centre of the bottom of the calyx, and 

 oppositely to its lobes. Anthers reaching a little beyond the lobes of the 

 calyx, borne outwardly to the filament, of 2 lobes that seem as 4, and 2 cells 

 that open sidewise and lengthwise. — In P. Gmelin/ the fruits are in heads; 

 and in P. Eicluu\ii nearly solitary. — Species 2 — ? 3. Trees : natives of 

 Asia and North America. Leaves alternate and more or less ovate and 

 toothed ; feather-veined and annual ; and the flowers small, and not showy. 

 P. Richard/ has stipules : which are straight, pointed, villous, and soon fall 

 ofl". This species has united by ingrafting with the elm. {Tiirptn and 

 jMichaii.v.) 



C'e'ltis Totirn. Flowers borne upon the shoots of the year, axillary; either 

 solitary, or 2 — 3 together, each, in any case, u|)on a peduncle ; or from 2 to 

 many, in a raceme or panicle : in the kinds hanly in Britain, the flowers 

 are protruded just previously to the leaves to which they, or the fruits, are 

 afterwards axillary : bisexual, or, less commonly, by the imperfection of 

 the pistil, only male in eflect ; both kinds upon one plant, and when they 

 occur in the same raceme, the latter are the lower. Cal3X bell-shaped, 

 distinct from the ovary, 5 — 6-parted, the segments imbricate in testivation. 

 Stamens 5 — G, inserted into the base of the calyx, oppositely to its lobes, 

 ami they are shorter than the lobes. F"ilaments at first incurved. Anthers 

 cordate-acuminate; the cells 2, opening at the sides. Ovary ovate, 1 -celled. 

 Stigmas 2, sessile, acuminate, long, spreading or recurved, downy or 

 glanded, simple or 2-parted. Fruit a drupe, subglobose. Ovule and seed, 

 each l,and pendulous. lunbryo sickle-shaped, its radicle uppermost: traces 

 of subgelatiuous albumen are between the cotyledons. — Species 19 or more ; 

 I wild in Europe, the north of Africa, and Iberia; in the Levant; and 2 in 

 China; 4 in North America; some in the West Indies and South America; 



