ParRT 6, 1918] ROSACEAE 481 
Tribe 16. KERRIEAE. Shrubs with alternate (or in the Japanese genus 
Rhodotypos opposite), ovate or ovate-lanceolate, toothed leaves with stipules. 
Flowers corymbose or solitary. Hypanthium flat or somewhat concave. 
Sepals 4-6. Petals 4-6, or wanting. Stamens numerous; filaments filiform, 
with somewhat broader bases; anthers didymous. Pistils 2-6, usually 4 or 5. 
Fruit drupaceous or nut-like; seed with endosperm. 
Petals present; fruit fleshy. 54. KERRIA. 
Petals wanting; fruit almost dry. 55. NEVIUSIA. 
54. KERRIA DC. Trans. Linn. Soc. 12: 156; 1817. 
Shrub with bright-green bark. Leaves alternate, simple, ovate, serrate. Flowers solitary 
at the ends of the branches. Hypanthium flat or nearly so. Sepals 5, rarely 4 or 6, glabrous, 
spreading, glandular-toothed. Petals as many as the sepals, spreading, orbicular to elliptic. 
Stamens 20 or more; filaments slender, glabrous; anthers didymous, with rounded cells, opening 
lengthwise. Pistils as many as the sepals and opposite them; ovaries ventricose, glabrous; 
styles terminal, filiform; stigma simple; ovules solitary, pendulous. Fruit drupaceous. 
Type species, Rubus japonicus L. 
1. Kerria japonica (L.) DC. Trans. Linn. Soc. 12: 156. 1817. 
Rubus japonicus 1,. Mant. 245. 1771. 
Corchorus japonicus Thunb. Fl. Jap. 227. 1784. 
Spiraea japonica Desv.; Thiéb. Mém. Soc. Linn. Paris 1: 25. 1822. 
An erect shrub, 1-1.5 m. high; leaves petioled; blades ovate-lanceolate or ovate, acumi- 
nate, sharply and doubly serrate, pinnately veined, pleated, bright-green, shining and almost 
glabrous above, paler and slightly hairy beneath, rounded at the base, 2-4 cm. long, 1—2.5 cm. 
wide; stipules lance-linear, soon deciduous; flowers solitary, terminal; sepals glabrous, green, 
ovate, acute, glandular-serrate, the two inner ones narrower; petals yellow, oval, 8-20 mm. 
long, obtuse; drupelets fleshy; putamen about 5 mm. long, round-lenticular. [A double- 
flowered form is often cultivated. | 
TYPE LOCALITY: [Vicinity of Nagasaki], Japan. 
DISTRIBUTION: Native of Japan, extensively cultivated and occasionally escaped from Con- 
necticut to South Carolina. 
ILLUSTRATIONS: Andr. Bot. Repos. pl. 587 (double); Bot. Mag. pl. 1296 (double); Bot. Reg. 
22: pl. 1873; Sweet, Brit. Fl. Gard. I. pl. 337; Sieb. & Zuce. Fl. Jap. pl. 98; Cycl. Am. Hort. f. 1210; 
Stand. Cycl. Hort. f. 2033; Rev. Hort. 40: f. 68. 
RHODOTYPOS TETRAPETALA (Sieb:) Makino, Bot. Mag. Tokyo 17: 13. 1903. Kerria tetrapetala 
Sieb. Verh. Bat. Genoos. 12: 69. 1830. Rhodotypos kerrioides Sieb. & Zucc. Fl. Jap. 187, pl. 99. 
1835. This species is commonly cultivated, is hardy as far north as Massachusetts, and probably 
is to be found escaped. It resembles Kerria in habit, but has opposite leaves, 4 white petals and 
usually 4 drupaceous dark-red carpels. 
55. NEVIUSIA A. Gray, Mem. Am. Acad. II. 6: 374. 1859. 
Shrubs with alternate, simple, ovate, serrate leaves and setaceous stipules. Flowers 
corymbose at the ends of the branches. Hypanthium nearly flat. Bractlets none; sepals 5, 
spreading, foliaceous, incised-serrate, persistent. Corolla wanting. Stamens numerous, 
inserted on a thin flat disk; filaments subulate-filiform, after anthesis marcescent; anthers 
didymous, 2-celled, dehiscent longitudinally. Pistils 2-4, usually 4; styles terminal, filiform, 
introrsely stigmatose at the apex. Ovules solitary, pendulous, anatropous. Fruit drupaceous, 
but nearly dry, the epicarp very thin. Endosperm fleshy, enclosing the embryo; radicle 
superior. 
Type species, Neviusia alabamensis A. Gray. 
1. Neviusia alabamensis A. Gray, Mem. Am. Acad. II. 6: 374. 
1859. 
A shrub, 1-2 m. high, with recurved-spreading branches, sparingly pubescent when young; 
leaves petioled; blades ovate to oblong, rarely subcordate at the base, doubly serrate, pinnately 
