Browsing Department of Biology & Environmental Sciences Faculty Papers by Issue Date
Now showing items 1-20 of 24
-
Chromosome Counts for Callitriche (Callitrichaceae) in North America
(1994-01-01)<p>Somatic chromosome numbers are reported for nine species and one variety of Callitriche (Callitrichaceae). The following new reports are included: 2n = 20 (C. nuttallii, C. marginata), 2n = 40 for one of four populations ... -
Seed Germination of Mexican Podostemaceae
(1994-05-01) -
Exine Reduction in Underwater Flowering Callitriche
(1994-10-01)<p>Both aerial and underwater pollination systems (hypohydrophily) occur in Callitriche (Callitrichaceae), and as such the genus can serve as a model system in which to probe questions concerning the evolution of hypohydrophily ... -
Evolution of Aquatic Angiosperm Reproductive Systems
(1996-12-01) -
Podostemaceae - Introduction
(1997-06-01) -
Invasion and spread of Callitriche Stagnalis (Callitrichaceae) in North America
(1998-01-01)<p>Callitriche Stagnalis (Callitrichaceae) is a widespread aquatic species in the Old World, but an adventive component of the North American flora. Herbarium records are used to document the historical and current ... -
Developmental Morphology of New World Podostemaceae: Marathrum and Vanroyenella
(1999-01-01)<p>Podostemaceae live in swift-running rivers with stony beds, mainly in the Tropics. This article is a comparative study of three Marathrum spp. (M. rubrum, M. schiedeanum, and M. tenue) and the monotypic genus Vanroyenella ... -
Comparative Pollen Morphology and Ultrastructure of the Callitrichaceae
(2000-01-01)<p>The Callitrichaceae are an aquatic family of dicots that include the single, geographically cosmopolitan genus Callitriche. Calliltriche contains 40-50 terrestial, amphibious, and oligately submersed species, and it is ... -
A New Species of Podostemum (Podostemaceae) from the States of Paraná and Santa Catarina, Brazil
(2001-01-01)<p>A new species of Podostemaceae, <em>Podostemum irgangii</em>, from the states of Santa Catarina and Parana, Brazil, is described and illustrated. Features that distinguish the new species are the uniformly verticillate ... -
A New Species of Ceratolacis (Podostemaceae) from Minas Gerais, Brazil
(2004-03-01)<p>A new species of <em>Ceratolacis (C. pedunculatum) </em>is illustrated and described. The new species is known from four locations in central Minas Gerais, Brazil. <em>Ceratolacis pendunculatum</em> is distinguished ... -
Pollen Production in the Androdioecious Datisca Glomerata (Datiscaceae): Implications for Breeding System Equilibrium
(2005-02-01)<p>Androdioecy (the presence of males and hermaphrodites in a breeding population) is a rare reproductive system in plants, with <em>Datisca glomerata</em> (Datiscaceae) representing the only well-documented example. Recent ... -
Preanthesis Cleistogamy in the Genus Podostemum (Podostemaceae)
(2006-01-01)<p>Podostemum from South America (P. comatum, P. distichum, P. irgangii, P. muelleri, P. ovatum, P. rutifolium subsp. rutifolium, P. scaturiginum, P. weddellianum) and the North American P. ceratophyllum. Fluorescence ... -
A new species of Castelnavia (Podostemaceae) from Tocantins, Brazil
(2008-01-01)<p>Castelnavia noveloi C. T. Philbrick & C. P. Bove is distinguished from other species of Castelnavia Tulasne & Weddell (Podostemaceae) based on the production of stems arising perpendicular from the leaf petiole (petiolar ... -
Monograph of Castelnavia (Podostemaceae)
(2009-01-01)<p>A monograph of Castelnavia is presented. Phylogenetic analyses of morphological characters reveal eight nonhomoplasious synapomorphies supporting the monophyly of the genus: 1) absence of roots, a 2) unilocular mature, ... -
The Liberal Republicanism of John Taylor of Caroline
(2009-01-01)
