[Plate 46.]. Acrista monticola, type (no. 761) collected near Adjuntas.

[Plate 47.]. Fig. 1, Aeria attenuata. Fig. 2, Cocops rivalis (left) and Roystonea Borinquena (right).

[Plate 48.]. Curima colophylla, apex of flower-cluster and terminal leaf-division, natural size. From type specimen (no. 878).

Pl. 43.
THRINCOMA ALTA
HELIOTYPE CO., BOSTON.

Pl. 44.
THRINCOMA ALTA
HELIOTYPE CO., BOSTON.

Pl. 45.
THRINAX PONCEANA
HELIOTYPE CO., BOSTON.