258 ARALIACEAE. 
HEDERA. Ivy. 
(Family Araliaceae). 
Woody plants, typically climb- 
ing by numerous aerial roots: 
evergreen. Stems moderate, ter- 
ete: pith moderate, spongy. Buds 
small, conical, solitary, sessile, 
naked or with about 2 fleshy un- 
specialized scales. lLeaf-scars al- 
ternate, U-shaped, somewhat 
raised: bundle-traces 5 or 7: sti- 
pule-scars lacking. Leaves _ pal- 
mately lobed and cordate or on the 
older pendent shoots lanceolate, or 
ovate or deltoid and round- or 
acute-based. 
Winter-characters of Hedera 
Helix are noted by Bosemann, 37; 
Fant, 48; and Ward, 1:147, f. 67- 
68. The ivy is in a horticultural 
class quite by itself where it can 
be grown as a wall-covering. It 
occurs in a very large number of 
foliage varieties, some of them very beautiful. 
Climbing. (1). H. Helix. 
Bushy or grafted as a standard. (2). H. Helix arborescens. 
Winter-character references to Acanthopanar:—A. penta- 
phyllum (A. spinosum). Schneider, f. 111; Shirasawa, 250. 
A. ricinifolium. Schneider, f. 111; Shirasawa, 248, pl. 5. A. 
sciadophylloides. Shirasawa, 248, pl. 5. A. senticosum. Schnei- 
der, f. 124. A. sessilifiorum. Schneider, f. 111. 
Two species of a related deciduous araliaceous genus, 
Fatsia, with large palmately lobed leaves, are more or less 
hardy,—F. japonica and F. papyrifera. The pith of the lat- 
ter, sliced into thin sheets, constitutes the Chinese rice-paper. 
