Untitled (bleed-through of previous page, left page); Untitled (note with color transfer, right page)

Watercolor over graphite on off-white wove paper

Graphite on gray laid paper; verso: graphite

Black crayon on paper

Black marker, dried leaf, adhesive on paper

Watercolor and gouache on off-white wove paper

Oil paint on offset lithograph, 1989 edition of Flora de la Real Expedición Botánica del Nuevo Reino de Granada (1783-1810)

Black marker and adhesive on paper

Pastel on paper

Pastel on two sheets of black wove paper

Watercolor and black ink on white wove paper

Graphite on slightly darkened off-white wove paper

Colored crayons on paper