EXPLANATION OF PLATES. 97 
half size; fruiting branch, natural size; fruit, x 4; ache- 
nium, x 8. 
Plate 23, R. verticillatus, L. — Habit, one-sixth size ; 
root and leaf, half size ; fruiting branch, natural size ; fruit, 
x4; achenium, x 8. 
Plate 24, R. Floridanus, Meisn. — Habit, one-sixth size ; 
leaves, natural size; fruit and achenium, x 8. 
Plate 25, R. altissimus, Wood. — Habit, one-sixth size ; 
leaf, half size; fruiting branch, natural size ; achenium, x8. 
Plate 26, R. salicifolius, Weinm. — Habit sketches, one- 
sixth size; leaf, half size; fruiting branch, natural size ; 
two fruits and achenium, x 8. 
Plate 27, 2. Berlandieri, Meisn. — Habit, one-sixth size ; 
leaves, half size; fruiting branch, natural size; fruit and 
achenium, x 8. 
Plate 28, /?. conglomeratus, Murr. — Young plant, one- 
sixth size (the branches become much more elongated and 
spreading); leaf, half size; fruiting branch, natural size ; 
fruit and achenium, x8. 
Plate 29, 2. pulcher, LL. — Habit of young and old plants, 
one-sixth size; leaves, half size; fruiting branch, natural 
size; fruit and achenium, x 8. 
Plate 30, R. obtusifolius, L.— Habit, one-sixth size ; 
leaf, half size ; fruiting branch, natural size ; fruit and ache- 
nium, x8. 
Plate 31, R. crispus x obtusifolius (R. acutus, L).— 
Habit, one-sixth size ; leaf, half size; fruiting branch, nat- 
ural size; two fruits, x 4. 
Plate 32, Z2. persicarioides, L. — Habit, one-sixth size; 
leaf, half size; fruiting branch, natural size; fruit and ache- 
nium, x 8. 
Plate 33, R. bucephalophorus, L.—Habit, half size; 
leaves and fruiting branch, natural size; fruit and ache- 
nium, x 8. 
