A new species of Zamia from Chocó, Colombia (Cycadales, Zamiaceae)
- M. Calonje, D. Stevenson, Claudia Calonje, Yan Arley Ramos, A. Lindstrom
- 14 March 2010
A new species of Zamiapyrophylla from Chocó, Colombia, distinguished by its bright orange and red emerging leaves with leaflets that progressively turn green from the apex to the base as they mature, petioles with branched prickles and with ferruginous pubescence when immature.
VARIABILITY OF VEGETATIVE FLUSH COLORS IN ZAMIA (CYCADALES)
The color of new vegetative leaf flushes can vary among species of cycads. It is often used as a diagnostic character in taxonomy and is one of the most appreciated features of the group in…
A new arborescent species of Zamia from the Central Cordillera of Tolima, Colombia (Cycadales, Zamiaceae), with comments on the Z. poeppigiana species complex
- M. Calonje, Héctor Eduardo Esquivel, D. Stevenson, Claudia Calonje, Deicy Pava
- Environmental Science, BiologyBrittonia
- 30 December 2011
Zamia tolimensis, a large arborescent species from the Central Cordillera of Tolima, Colombia, is described and illustrated. It is compared to Z. lindenii and Z. poeppigiana, the two most similar…
Plant Collection “Half‐life:” Can Botanic Gardens Weather the Climate?
Botanic gardens are organized around plant collections, and climate change will affect those collections. Land loss is expected for gardens near sea level, prompting a loss of plants from the…
Germination and Early Seedling Growth of Rare Zamia spp. in Organic and Inorganic Substrates: Advancing Ex Situ Conservation Horticulture
In this study, two inorganic substrates, arcillite (Turface MVP) and coarse silica sand, and one mixed cycad substrate (with organic and inorganic components) were evaluated for germination and growth of three rare Zamia species.
Thermogenesis Patterns in Selected Cycas Species
Cycad Sex Ratios at Montgomery Botanical Center
From Forest Nursery Notes, Winter 2011
Improved propagation methods greatly benefit conservation of rare cycads. Appropriate substrate conditions, especially excellent root aeration, are crucial to successful cultivation of most cycads.…
INDEX TO BRITTONIA VOLUME 62 (2010)
Three new species of Ocotea (Lauraceae) from the campos rupestres of Brazil, 86–94 are described, with a focus on the Habenaria crucifera.