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Shell growth of the golden mussel, Limnoperna fortunei (Dunker, 1857) (Mytilidae), in the Río de la Plata, Argentina
The golden mussel, Limnoperna fortunei, is an invasive freshwater bivalve that has caused damage to the native fauna as well as economic damage to industries of the region since its introduction to Argentina.
Population Structure in Zamia (Zamiaceae) in Northern Puerto Rico. II. Seed Germination and Stage-Structured Population Projection
- V. Negrón-Ortíz, D. Gorchov, G. Breckon
- Environmental ScienceInternational Journal of Plant Sciences
- 1 September 1996
High annual survivorship of adults, combined with episodic coning, appears to account for the persistence of Z. amblyphyllidia populations.
Chemotaxonomic Studies in Cnidoscolus (Euphorbiaceae). II. Flavonoids of C. aconitifolius, C. souzae, and C. spinosus
The flavonoid data support the inclusion in C. aconitifolius of C. polyanthus and C. spinosus and suggest that these two taxa originated in the Yucatan region of Mexico.
EXTERNAL SPORE MORPHOLOGY AND TAXONOMIC AFFINITIES OF PHYLLOGLOSSUM DRUMMONDII KUNZE (LYCOPODIACEAE)
A B S T R A C T The external spore morphology of Phylloglossum drummondii was studied with the scanning electron microscope and shown to share a number of features with spores in the subgenus…
Chemotaxonomic Studies in Cnidoscolus (Euphorbiaceae). I. Flavonol Glycosides of the C. tubulosus Complex
The purpose of this paper is to report on the flavonol glycosides of the Cnidoscolus tubulosus complex and to discuss the taxonomic and ecological significance of the Flavonoid data.
POPULATION STRUCTURE IN ZAMIA DEBILIS (ZAMIACEAE) I. SIZE CLASSES, LEAF PHENOLOGY, AND LEAF TURNOVER
Population structure, leaf phenology and leaf turnover were followed over a 29-month period in Zamia debilis L.f. ex Aiton (Zamiaceae), an understory species in the Cambalache Forest in northern Puerto Rico, with no evidence that leaf emergence or retention were affected by cone production or seed maturation.
Studies in cnidoscolus (Euphorbiaceae) I. Jatropha tubulosa, J. Liebmannii and allied taxa from Central Mexico
- G. Breckon
- Biology, Environmental ScienceBrittonia
Cnidoscolus tehuacanensis from the Tehuacán Valley andC.glabratus from the Río Balsas Depression are described as new taxa from Mexico.