Flora Costaricensis / William Burger, editor.

n.s. no.36(1995)

Flora Costaricensis / William Burger, editor.

n.s. no.33(1993)

Flora Costaricensis / William Burger, editor.

n.s. no.23(1990)

Flora Costaricensis. William Burger, editor. Family #40, Casuarinaceae, Family #41, PIperaceae [by] William Burger.

v.35(1971)

Flora of Peru: Family compositae : Walter C. Holmes, Sidney McDaniel.

n.s. no.9(1982)

Flora Costaricensis / William Burger, editor.

n.s. no.13(1983)

Flora costaricensis / William Burger, editor.

n.s. no.41(2000)

Flora of Peru. Ramón Ferreyra.

n.s. no.35(1995)

Flora of Peru / Alwyn H. Gentry, Dillon Michael O., and Jones Samuel B.

n.s. no.5(1980)

Flora of Peru. Michael O. Dillon.

n.s. no.11(1982)

Flora of Peru / by Donovan S. Correll.

v.13:pt.5B:no.2 (1967) [Solanaceae]

Flora of Peru. Michael O. Dillon.

n.s. no.10(1982)

Flora Costaricensis : Family #200, Acanthaceae by L.H. Durkee, Family #201, Plantaginaceae by William Burger.

n.s. no.18(1986)

Flora Costaricensis / William Burger, editor.

n.s. no.40(1999)

Flora Costaricensis / William Burger, editor.

n.s. no.28(1991)