66 MANUAL OF APICULTURE. 
White Mustard and Black Mustard (Brassica alba and B. nigra) June. 
RASPBERRY (Rubus) June. 
WHITE CLOVER ( Trifolium repens) June-July. 
ALSIKE CLOVER ( Trifolium hybridum) June-July. 
Edible Chestnut (Castanea dentata= C. sativa var. americana of Gray's 
Manual) June-July. 
Alfalfa, or Lucern (Medicago sativa) June-July. 
LINDEN, or BASSWOOD ( Tilia americana) July. 
Smooth Sumac (Rhus glabra) Jnly. 
Buttonbush (Cephalanthus occidentalis) July. 
Melilot, Bokhara, or Sweet Clover (Melilotus alba) July-Aug. 
Indian Corn (Zea mags) July-Aug. 
Melon, Cucumber, Squash, Pumpkin (Citrullus, Cucumis, and Cucurbi ta). July- Aug. 
Fireiceed ( Erechth ites h ieracifolia) J uly-Sept. 
Chicory ( Cichorium intybus) July-Sept. 
Great Willow-herb (Epilobium angustifolium) July-Aug. 
Kxotweeds (Polygonum, especially P. pennsylvanicum and P. persicaria) . Aug.-Sept. 
BUCKWHEAT (Fagopyrum fagopyrum = F. esculentum of Gray's Manual). Aug. -Sept. 
Indian Currant, or Coral Berry (Symphoricarpos symjihoricarpos^S. vul- 
garis of Gray's Manual) Aug.-Sept. 
Thorough wort, or Boneset ( Eupatorium perfoliatum) Aug.-Sept- 
Bur Marigolds (Bidens, especially Spanish Needles, Bidens bipinnata) . . Aug.-Oct. 
Wild Asters ( Aster) Aug.-Oct. 
Golden-rods (Solidago) Aug.-Oct. 
MIDDLE SECTION. 
[Between 35° and 40° N".] 
Redbud ( Cercis canadensis) Mar.-Apr. 
Alder (Alnus rugosa=A. serrulata of Gray's Manual) Mar.-Apr. 
Red or Soft Maple (Acer rubrum) Mar.-Apr. 
Elm ( Ulmus) Mar.-Apr. 
Willows (Salix) Mar.-May. 
Dandelion (Taraxacum taraxacum= T. officinale of Gray's Manual) Apr.-May. 
Apricot (Prunus armeniaca) Apr.-May. 
Juneberry or Service Berry (Amelanchier canadensis) Apr.-May. 
Wild Crab Apples (Pyrus) Apr.-May. 
Gooseberry and Currant (Ribes) Apr.-May. 
Rhododendrons (Rhododendron) Apr.-May. 
Peach, Cherry, and Plum (Prunus) Apr.-May. 
Pear and Apple (Pyrus) Apr.-May. 
Crimson Clover ( Trifolium incarnatum) Apr.-May. 
Huckleberries and Blueberries ( Gaylussacia and Yaccinium) May. 
American Holly (Ilex opaca) May. 
Black Gum, Sour Gum, Tupelo or Pepperidge (Nyssa aquatica = N. sylvatica 
of Gray's Manual) May- 
Manzanitas (Arctostaphylos) (California) May. 
Common, Black, or Yellow Locust (Robinia pseudacacia) May. 
Barberry (Berberis canadensis) May. 
TULIP TREE, or "POPLAR " (Liriodendron tulipifera) May. 
Mountain Laurel (Ealmia latifolia) May-June. 
Grapevines ( Vitis) May-June. 
Persimmon (Diospyros virginiana) May-June. 
White Clover ( Trifolium rep< ns) May -June. 
Alsike Clover (Trifolium hybridum) May -June. 
Raspberry (Rubus) May -June. 
