The genus Geranium L. (Geraniaceae) in North America. II. Perennial species

Gender Differences in Reproductive and Physiological Traits in a Gynodioecious Species, Geranium Maculatum (geraniaceae)

Plant species with separate genders often exhibit gender differences in traits related to reproductive allocation. In gynodioecious species, females often produce more seeds than do hermaphrodites, leading to a higher reproductive cost. The mechanisms that allow females to meet the high costs of reproduction are currently under debate. In this study, we test the hypothesis that there are geneti...

The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) in North America.

The genus Palaeagapetus Ulmer (Trichoptera, Hydroptilidae, Ptilocolepinae) is revised in North America. Descriptions of the western species, P. nearcticus Banks 1938, are provided with the first descriptions of the female, pupa, larva, egg and case and with notes on food, habitat and annual life cycle. The male and female of the eastern species, P. celsus Ross 1936, are described or redescribed...

The genus Scelolyperus Crotch in North America (Coleoptera: Chrysomelidae: Galerucinae)

Free Radical Scavenging and Antimicrobial Activities of Some Geranium Species

There are 35 Geranium (Geraniaceae) species recorded in the Flora of Turkey1,2. Some Geranium (Geraniaceae) species are used as antidiabetic, hemostatic, antihemorrhoidal, antidiarrheic and for the treatment of pain, fevers and gastrointestinal ailments3. Leaves of some Geranium species are consumed as food in Anatolia4. Furthermore, tubers of G. tuberosum in Erzurum and aerial parts of G. purp...

Freshwater Triclads (Turbellaria) of North America, IX: The Genus Sphalloplana

Kenk, Roman. Freshwater Triclads (Turbellaria) of North America, IX: The Genus Sphalloplana. Smithsonian Contributions to Zoology, number 246, 38 pages, 62 figures, 1 table.—A revision of the North American species of the genus Sphalloplana is presented. Apart from the nine species already known (S. percoeca, S. georgiana, S. kansensis, S. virginiana, S. weingartneri, S. buchanani, S. pricei, S...