Sclerotinia sclerotiorum on bean Phaseolus vulgaris, copyright Rasbak.Belongs within: Sordariomyceta. The Sclerotiniaceae are a group of fungi that are pathogenic or saprobic on various parts of plants, particularly seeds and fruits (Kirk et al. 2001). Characters (from Kirk et al. 2001): Stromata present, as well-differentiated sclerotia or mummified host tissue. Ascomata apothecial, often long-stalked, usually… Continue reading Sclerotiniaceae


Apple scab Venturia inaequalis, copyright Luke Milliron. Belongs within: Pleosporomycetidae. The Venturiaceae are a group of fungi that are usually biotrophic or nectrophic on the leaves or stems of plants (Kirk et al. 2001). Characters (from Kirk et al. 2001): Ascomata perithecial, becoming superficial, usually small, more or less globose, sometimes aggregated into stromata, often… Continue reading Venturiaceae


Halicreas minimum, from NOAA Office of Ocean Exploration and Research.Belongs within: Medusozoa. The Trachymedusae are a group of hydrozoans lacking a polyp stage to the life cycle. Medusae develop directly from an actinula (Petersen 1979). <==Trachymedusae DB07 |  i. s.: Carmaris glitschi H04 |         Carmarina hastata H04 |         Aglantha B26 |           |–A. digitale C02 |           `–A.… Continue reading Trachymedusae


Limnocnida tanganyicae, from Parker (1907).Belongs within: Medusozoa. The Limnomedusae are a poorly defined group of hydrozoans with a biphasic life cycle whose medusae have ecto-endodermal statocysts and/or gametogenic tissue along their radial canals, and polyps not covered by a theca (Daly et al. 2007). <==Limnomedusae [Limnohydrina] DB07 |–Vallentinia Browne 1902 P79 |–Monobrachium Mereschkowsky 1877 P79… Continue reading Limnomedusae


Mansonella ozzardi in blood smear, from the Center for Disease Control.Belongs within: Ecdysozoa. Contains: Nematomorpha, Kinorhyncha, Priapozoa, Dorylaimia, Enoplia, Desmoscolecida, Monhysterida, Chromadorida, Desmodorida, Araeolaimida, Plectida, Secernentea. The Cycloneuralia are a clade of worm-like animals in which the brain neuropil forms a ring around the anterior part of the intestinal system. Members include the Nematoda, roundworms,… Continue reading Cycloneuralia


Eudendrium racemosum, copyright Peter Schuchert.Belongs within: Medusozoa. Contains: Hydractinioidea. The Filifera are a group of hydrozoans characterised by the possession of filiform tentacles on the feeding polyps, together with desmoneme and eurytele nematocysts (Daly et al. 2007). <==Filifera |–Eudendriidae [Eudendriida, Eudendrioidea] P79 |    |–Myrionema Pictet 1893 P79 |    |    `–M. amboinense T87 |    `–Eudendrium Ehrenberg 1834 P79 |         |–E.… Continue reading Filifera


Reconstruction of Lasanius problematicus, copyright Nobu Tamura.Belongs within: Deuterostomia. Contains: Cyclostomata, Conodonta, Birkeniida, Thelodontomorphi, Pteraspidomorphi, Galeaspida, Osteostraci, Gnathostomata. The Craniata are a major subgroup of the chordates in which the neural tube is enlarged to form a brain that is protected by an endoskeletal cranium. Anterior sensory structures such as eye lenses and an olfactory… Continue reading Craniata