Quantitative Relationships of Terrestrial Mosses with Some Coniferous Forests at Mt. Rainier National Park

Relatively few studies have been made on the correlation of moss societies with tree species in climax associations in North America; this is true despite the fact that in Europe moss unions have been accorded considerable importance along with societies of larger plants in delimiting phytocoenoses. The present study is an attempt to characterize as accurately as possible the terrestrial moss communities of typical climax stands in a given area, largely in Mt. Rainier National Park, and to discover how closely related bryophyte occurrence, frequency, and coverage may be to the societies of higher plants

The Chromosome Relations of Solidago Rigida

During the summer of 1930 an unusual variant race of Solidago rigida L. was collected in Newton county, Indiana. This variant was transplanted to the Botanical Garden of Butler University where it has grown since, showing no tendency toward return to the characteristic form of the normal S. rigida plants growing in the same plot beside it. The most notable distinctions of this variant are: the larger size, being about twice as high, with larger leaves and flowers; the upper cauline leaves being ovate, obtuse and sessile, with an unequally cordate base; and the later time of blooming, which seems to be due not so much to later initiation as to slower development and maturation of flowers

Short-Distance Structure of Nuclei

One of Jefferson Lab's original missions was to further our understanding of the short-distance structure of nuclei. In particular, to understand what happens when two or more nucleons within a nucleus have strongly overlapping wave-functions; a phenomena commonly referred to as short-range correlations. Herein, we review the results of the (e,e'), (e,e'p) and (e,e'pN) reactions that have been used at Jefferson Lab to probe this short-distance structure as well as provide an outlook for future experiments.Comment: 16 pages, 8 figures, for publication in Journal of Physics