Citation: M. Egger et Rj. Meinke, Castilleja chambersii (Scrophulariaceae), a new rare species from the northern Coast Range of Oregon, BRITTONIA, 51(4), 1999, pp. 445-451
Citation: Rc. Barneby, Increments to genus Chamaecrista (Caesalpiniaceae : Cassiinae) from Bolivia and from Atlantic and Planaltine Brazil, BRITTONIA, 51(3), 1999, pp. 331-339
Citation: C. Bayer et Lj. Dorr, A synopsis of the neotropical genus Pentaplaris, with remarks on its systematic position within core Malvales, BRITTONIA, 51(2), 1999, pp. 134-148
Citation: Vd. Mansano et Amgd. Tozzi, The taxonomy of some Swartzieae (Leguminosae, subfam. Papilionoideae) fromsoutheastern Brazil, BRITTONIA, 51(2), 1999, pp. 149-158
Citation: F. Almeda, A new Acisanthera (Melastomataceae : Melastomeae) from Noel Kempff MercadoNational Park, Bolivia, BRITTONIA, 51(2), 1999, pp. 159-162
Citation: Cb. De Rojas et Nw. Sawyer, A new species of Cestrum (Solanaceae) from the Cordillera de Merida, Venezuela, BRITTONIA, 51(2), 1999, pp. 163-165
Citation: P. Acevedo-rodriguez, West Indian novelties I: a new species of Marsdenia (Asclepiadaceae) from Puerto Rico and a new name for a Jamaican species of Calyptranthes (Myrtaceae), BRITTONIA, 51(2), 1999, pp. 166-169
Citation: R. Lira et M. Nee, A new species of Sechium sect. Frantzia (Cucurbitaceae, Sicyeae, Sicyinae)from Mexico, BRITTONIA, 51(2), 1999, pp. 204-209
Citation: Pg. Delprete, The Cuban endemic genera Ariadne, Mazaea, Acunaeanthus, Phyllomelia (Rondeletieae), and Eosanthe (Rubiaceae), BRITTONIA, 51(2), 1999, pp. 217-230