1348 ARBORETUM AND FUUT1CETUM. PART 111. 



kilns Pont, t. 48., is a native of New Zealand, and was introduced in 1822. 

 It > tolerably hardy ; a plant having lived with US at Nayswater, with very little protection, since 

 1899 P s.\i\ >:,;'..•. Hook. Bo'.. Mag., t 8396., is a twiggy shrub, from 2 ft. to oft high, probably also 

 as liarviy as the Other. Both species flower in April. 



moUtes Hot. Mag, t. 1321., has been an inhabitant of our green-houses since 1692. It 

 is j mtn e ot the Cape of Good Hope, and would probably stand against a conservative wall. 



CHAP. C. 



OF THE HARDY LIGNEOUS PLANTS OF THE ORDER l/RTICA^CEiK. 



These arc included in five genera, which have their names and characters 



below. 



JH6 N RUS Toum. Flowers unisexual ; those of the 2 sexes, in most species, 

 upon the same plant ; in M. nigra Fob:, and, according to Gronovius (Virg. f 

 14b.), in M. rubra L., upon distinct plants: according to Kalm (Act.Suec. y 

 1776), the sexes of M. rubra L. are polygamous. — Male flowers disposed 

 in a drooping, peduncled, axillary spike. Calyx of 4 equal sepals, imbri- 

 cate in aestivation, expanded in flowering. Stamens 4. A rudiment of a 

 pistil is present. — Female flowers in ovate erect spikes. Calyx of 4 

 leaves, in opposite pairs, the outer pair the larger, all upright and persistent, 

 becoming pulpy and juicy. Ovary of 2 cells, one including one pendulous 

 ovule, the other devoid of any. Stigmas 2, long. In the state of ripeness, 

 each ovary is a fleshy and juicy utricle, and is covered by the fleshy 

 and juicy calyx : the aggregate of the ovaries and the calyxes from a 

 spike of flowers constitutes what is termed a mulberry. Seed pendulous 

 — Species several ; natives of Asia, south of Europe, and North America. 

 Trees. Sap white. Leaves alternate, large, mostly lobed, and rough ; the 

 favourite food of the silk-moth (2?6mbyx mori F.) in its caterpillar state. 

 (Chiefly from T. Nee* ab Esenbcck, Gen. PL Fl. Germ.) 



Broussone v t/j L'Herit. Flowers unisexual ; those of the two sexes upon 

 distinct plants. — Male flowers in pendulous cylindrical catkins; each 

 flower in the axil of a bractea. Calyx shortly tubular, then 4-parted. Sta- 

 mens 4, elastic. — Female flowers in peduncled, axillary, upright globular 

 heads. Calyx tubular, its tip with 3 — 4 teeth. Ovary within an integument 

 that arises from the bottom of the calyx. Style lateral, prominent. Stigma 

 taper. Fruit club-shaped, proceeding from the bottom of the calyx, and 

 extended much beyond its tip; and consisting of the integument in which 

 the ovary was enclosed, and now become very juicy ; and of a 1-seeded 

 oval utricle with a crustaceous integument, and enclosed within the juicy. 

 integument. — Species 1, native to Japan and the isles of the Pacific Ocean. 

 A tree, with leaves large, lobed or not, and hairy. (J)u Hamel, Trade des 

 drbret, ed. ttOUV. ; and the Fenny Cyclopaedia.) 



M\m.i k; Nuttall. Flowers unisexual; in M. aurantiaca Nutt., and M. 

 tinctoria 1). Don, those of the two sexes upon distinct plants; if not so in 

 the rest, then upon the same plant. What follows relates to M. aurantiaca 

 Xntt. — Male flowers in a very short almost sessile racemose panicle of 12 

 or more flowers. Calyx 4-parted. Stamens 4, in some instances 3. — 

 Female flowers closely aggregate upon an axis, and forming a globular head 

 that i-, borne upon a short axillary peduncle. Calyx oblong, urccolar, 

 apparently with 1 lobe-, at the tip : it includes the ovary, which is situated 

 above its base, and is terminated by a style that is thread-shaped, downy, 

 and protruded beyond the calyx to the length of nearly 1 in. The ovary 

 b ff Omfi an achenium about \ in. lone, haff as much broad, compressed, 

 Oval, With the dp blunt and nnsyminetrical from an indentation on one side 

 in which the style had been attached. — A tree, native of North America. 

 Spin) : -nines axillary. Sap white. Leaves alternate, ovate. Stipules 

 minute, da iduouf. ( NuUaU \ Gard. Mag., vol. xi. p. 312 — 316., and vol. 



xii. p. 2io. ; and observation.) 



