in greenhouse, [281]

Woodland, ornamental planting in, [6]-[7]

Woodpeckers and old trees, [133]

Xanthoceras, [37], [466]-[467]

Xanthoxylum americanum, [488];

planispinum, [488]

Yellow wood, Virginian, [370]

Yew, [9], [11], [123], [248];

as a hedge, [326], [327]

Yuccas, [185], [250], [467]