Part 56

Asclepias erosa, 376.

Asclepias speciosa, 374.

Asclepias vestita var. Mohavensis, 376.

Asclepiodora, 376.

Asclepiodora decumbens, 378.

Ash, Flowering, 366.

Aster, 532, 542, 544, 556, 568.

Aster Andersoni, 570.

Aster Chamissonis, 568.

Aster radulinus, 568.

Aster, Beach, 534.

Aster, Broad-leaf, 568.

Aster, Cliff, 572.

Aster, Hairy Golden, 530.

Aster, Tall Purple, 556.

Aster, Woolly, 542.

Astragalus, 256.

Astragalus MacDougali, 260.

Astragalus Menziesii, 256.

Astragalus nothoxys, 258.

Astragalus pomonensis, 258.

Astragalus Utahensis, 258.

Atragene, 150.

Atragene occidentalis, 150.

Audibertia, 438, 440, 442.

Aulospermum longipes, 336.

Azalea, 342.

Azalea occidentalis, 342.