Volume 51(1)
Contents
Articles:
1 Identification of asymmetrically winged samaras
from the Western Hemisphere.
Chetana Mirle and Robyn J. Burnham
15 Riodocea (Rubiaceae, Gardenieae), a
new genus from the Brazilian Atlantic forest.
Piero G. Delprete
24 The yellow-flowered species of Cuphea
(Lythraceae), including three new taxa.
Shirley A. Graham and Taciana B. Cavalcanti
31 Jaltomata II: new combinations for
five South American species (Solanaceae).
Thomas Mione
34 Distribution of quinolizidine alkaloid types
in nine Ormosia species (Leguminosae–Papilionoideae).
Martin Ricker, Douglas C. Daly, Gerhard Veen, Eugene F. Robbins, Miguel
Sinta V., Jomber Chota I., Franz-C. Czygan, and A. Douglas Kinghorn
44 Cycas pranburiensis (Cycadaceae), a
new cycad from Thailand.
S.-L. Yang, W. Tang, K. D. Hill, and P. Vatcharakorn
48 The genus Cycas (Cycadaceae) in Thailand.
K. D. Hill and S.-L. Yang
74 A new species of Aspidosperma Mart.
(Apocynaceae) from Bahia, Brazil.
W. Marcondes-Ferreira
77 A new Bactris (Palmae) from Central
America.
Greg de Nevers and Andrew Henderson
79 Another look at Hymenoxys subgenus
Plummera
(Asteraceae: Heliantheae: Gaillardiinae) from Arizona and New Mexico.
Warren L. Wagner, Reggie A. Fletcher, and Robynn K. Shannon
87 New Asteraceae from Mexico and Bolivia.
José L. Panero and José L. Villaseñor
93 The genus Racomitrium (Grimmiaceae)
in Brazil, with the first report of R. subsecundum in South America.
Halina Bednarek-Ochyra, Ryszard Ochyra, and William R. Buck
106 A phylogenetic analysis of the Euterpeinae
(Palmae; Arecoideae; Areceae) based on morphology and anatomy.
Andrew Henderson
Instructions to Contributors: 115
Book Reviews: 23, 47, 73, 76, 113, 114
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