ROSACEAE, 97 
spines; small continuous pith; alternate slightly-raised crescent- 
shaped leaf-scars with 3 bundle-traces; scarcely evident stipule- 
scars; sessile ovoid pointed appressed buds with several exposed 
scales; rather small lanceolate slender-petioled leaves; small 
perfect corymbed polypetalous epigynous white flowers; and 
small typically red pomes with 2-seeded bony core-cavities. 
—Often placed in Crataegus. 
Leaves acute at both ends, low-crenate. P. coccinea. 
RHODOTYPOS, 
Deciduous shrubs with slender terete twigs; relatively large 
round continuous white pith; opposite somewhat raised triangu- 
lar or 3-lobed leaf-scars with 3 bundle-traces; no stipule-scars ; 
ovoid sessile buds with some 3 pairs of exposed scales; large 
thin wrinkled petioled leaves; few relatively large perfect poly- 
petalous perigynous white flowers ending the branches; and 
fruit of about 5 black drupes in each enlarged calyx. The buds 
are often collaterally multiplied, . 
Leaves ovate, acuminate, doubly serrate. R. kerrioides. 
KerriA. “Corchorus.” 
Rather small deciduous shrubs with slender angled green 
twigs; rounded homogeneous pale pith; alternate 2-ranked some- 
what raised triangular or transverse leaf-scars with 3 bundle- 
traces; no stipule-scars; solitary sessile ovoid appressed buds 
with four or five rather loose ciliate scales; simple, doubly 
toothed moderately large short-stalked leaves; perfect rather 
large perigynous yellow flowers ending the branches; and sev- 
eral small akenes in each persistent calyx. 
1. Unvariegated. 2. 
Variegated. 3. 
2. Flowers single. | K. japonica. 
Flowers double. K. japonica flore-pleno. 
3. Twigs striped with yellow. K. japonica vittato-ramosa. 
Twigs green. 4. 
4. Leaves striped with yellow. K. japonica aureo-vittata. 
Leaves edged with white, K. japonica argenteo-variegata. 
