Bryology Commons^™

Checklist Of Mosses Of Oregon, 2022, John Christy, David H. Wagner, David Kofranek

Institute for Natural Resources Publications

This list is based on Christy et al. (1982) and supersedes any online versions posted prior to the date shown above. Additions to the flora since 1982 are marked by asterisks, with the earliest known verified sources noted in square brackets. Unless noted otherwise, nomenclature conforms to Flora of North America Volumes 27 and 28. Most family placements follow Goffinet et al. 2014. For convenience, synonyms used by Lawton (1971) and more recent works are provided in square brackets. In general, sources for nomenclatural changes can be found in the TROPICOS database. The checklist is followed by annotated lists of …

Discovery Of Epiphytic Lichens In Connecticut Suggests Novel Introduction And Reintroduction Via Horticultural Practices, Henry A. Frye, Zachary Muscavitch, Bernard Goffinet

EEB Articles

The discovery of Teloschistes chrysophthalmus in Connecticut more than one hundred years since its last known occurrence is argued to result from human introduction. The species only occurred on the horticultural tree, Gleditsia triacanthos var. inermis, planted on the University of Connecticut campus. Gleditsia triacanthos is not indigenous to northeastern North America, but is widespread in the central United States. Other epiphytic macrolichens also recorded on this phorophyte include Punctelia bolliana and Parmotrema austrosinense, both widespread in the central United States, and new to Connecticut and New England, respectively. This is likely the first reported case of combined …

Annotated Checklist Of The Bryophytes Observed At The Gordon Natural Area West Chester University, Pa) 2007-2020. Version I, Nur Ritter

Gordon Natural Area Baseline Plant Survey Documents

Summary Data Number of Taxa: 35 Species, in 28 Genera, 23 Families, and 12 Orders. Description The bryophytes are an informal group that is composed of three divisions of non-vascular plants: the liverworts, hornworts, and mosses. Of these, the mosses are the most familiar to most people, but the three groups are similar in appearance, and differ only in their reproductive structures. All bryophytes lack specialized tissues for transporting resources (i.e., vascular tissue); hence, they are characteristically small in stature. Additionally, bryophytes do not produce flowers or seeds; rather, reproduction is through spores. Bryophytes have received relatively little investigation at …

Impacts Of Rock Climbing On Lichen And Bryophyte Cliff Communities In The Arid West, Giovanna M. Bishop

2020 Symposium Posters

Lichens and bryophytes make up the majority of the diversity and cover in cliff systems around the world. Recently, with the rapid rise of rock climbing, there are concerns rock climbers are negatively impacting cliff communities. My study will compare climbed and unclimbed granite cliffs to better understand the impacts of rock climbing on lichen and bryophyte diversity and cover in eastern Washington. The objectives of this study are to assess the impacts of rock climbing on lichen and bryophyte cliff community diversity and cover and improve route development and cliff management practices for lichens and bryophytes. This study will …

Effects Of Rate Of Drying, Life History Phase, And Ecotype On The Ability Of The Moss Bryum Argenteum To Survive Desiccation Events And The Influence On Conservation And Selection Of Material For Restoration, Joshua Lee Greenwood, Lloyd R. Stark, Lindsay P. Chiquoine

Life Sciences Faculty Research

Desiccation stress is frequently experienced by the moss Bryum argenteum and can influence survival, propagation and niche selection. We attempted to disentangle the interacting factors of life history phase (five categories) and rate of desiccation (time allotted for induction of desiccation tolerance) for 13 ecotypes of B. argenteum. Using chlorophyll fluorescence as a stress index, we determined how these parameters influenced desiccation tolerance. Rate of drying and life phase significantly affected desiccation tolerance. The reaction norms of desiccation tolerance displayed by the 13 ecotypes showed a substantial degree of variation in phenotypic plasticity. We observed differences in survival and fluorescence …

Hydrogenation Of Organic Matter As A Terminal Electron Sink Sustains High Co2:Ch4 Production Ratios During Anaerobic Decomposition, Rachel M. Wilson, Malak M. Tfaily, Virginia I. Rich, Jason K. Keller, Scott D. Bridgham, Cassandra Medvedeff Zalman, Laura Meredith, Paul J. Hanson, Mark Hines, Laurel Pfeifer-Meister, Scott R. Saleska, Patrick Crill, William T. Cooper, Jeff P. Chanton, Joel E. Kostka

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Once inorganic electron acceptors are depleted, organic matter in anoxic environments decomposes by hydrolysis, fermentation, and methanogenesis, requiring syntrophic interactions between microorganisms to achieve energetic favorability. In this classic anaerobic food chain, methanogenesis represents the terminal electron accepting (TEA) process, ultimately producing equimolar CO₂ and CH₄ for each molecule of organic matter degraded. However, CO₂:CH₄ production in Sphagnum-derived, mineral-poor, cellulosic peat often substantially exceeds this 1:1 ratio, even in the absence of measureable inorganic TEAs. Since the oxidation state of C in both cellulose-derived organic matter and acetate is 0, and CO₂ has …

Plant Functional Types Do Not Predict Biomass Responses To Removal And Fertilization In Alaskan Tussock Tundra, M. Syndonia Bret-Harte, Michelle C. Mack, Gregory R. Goldsmith, Daniel B. Sloan, Jennie Demarco, Gaius R. Shaver, Peter M. Ray, Zy Biesinger, F. Stuart Chapin

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

1. Plant communities in natural ecosystems are changing and species are being lost due to anthropogenic impacts including global warming and increasing nitrogen (N) deposition. We removed dominant species, combinations of species and entire functional types from Alaskan tussock tundra, in the presence and absence of fertilization, to examine the effects of non-random species loss on plant interactions and ecosystem functioning.

2. After 6 years, growth of remaining species had compensated for biomass loss due to removal in all treatments except the combined removal of moss, Betula nana and Ledum palustre (MBL), which removed the most biomass. Total vascular plant …

A List Of Nebraska Mosses, Katharine A. Wolfe

Nebraskiana Publications: Resources and Materials on the 37th State

The present paper is the result of investigations carried on from the spring of 1921 to the present time. Most of the species from Lincoln and Weeping Water, and some from Peru and Platte River, which were new to the state, were collected by the writer, while credit is due to Dr. Elda R. Walker, Miss Leva B. Walker, Miss Dorothy Duff, Miss Julia Joyce Harper, Mr. N. F. Petersen, Mr. S. G. Oyler, and Mr. A. E. Holch for collections from Cherry County, Peru, Platte River, and Plainview, Nebraska.

All identifications, including the specimens originally in the Herbarium of …