Browsing Arts & Sciences by Issue Date
Now showing items 1-20 of 89
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Chromosome Counts for Callitriche (Callitrichaceae) in North America
(1994-01-01)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)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) -
Native People of Southern New England, 1500-1650
(1997-07-01) -
Invasion and spread of Callitriche Stagnalis (Callitrichaceae) in North America
(1998-01-01)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 distribution ... -
Collinder 110: An Old Open Cluster in Monoceros
(1998-03-01)<p>Results of photoelectric UBV RI photometry of 78 stars and photographic PDS and CCD photometry for 437 stars are presented for Collinder 110, an old open cluster at low Galactic latitude. Proper motions obtained from ... -
Developmental Morphology of New World Podostemaceae: Marathrum and Vanroyenella
(1999-01-01)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)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 the ... -
Human Life Before Birth
(CRC Presshttp://www.crcpress.com/product/isbn/9789057026089, 2000-12-21)This textbook presents essential information about human embryology in an accessible form. In addition to covering the specifics of human embryology, the text also provides practical information on human health issues and ... -
The Route and Other Poems
(Pikestaff Publicationshttp://pikestaffpress.com/Catalog_Detail.htmlNormal, IL, 2001-01-01)<p>Scrimgeour’s poems are landscapes and portraits becoming each other. In them there seems a faith that the everyday details of this world, like an intricate seashell or piece of tide worn glass, contain within them ... -
A New Species of Podostemum (Podostemaceae) from the States of Paraná and Santa Catarina, Brazil
(2001-01-01)A new species of Podostemaceae, Podostemum irgangii, from the states of Santa Catarina and Parana, Brazil, is described and illustrated. Features that distinguish the new species are the uniformly verticillate leaves and ...
