New North American Lichens
نویسندگان
چکیده
منابع مشابه
A New North American Bird - Flea
Dr. Phyllis T. Johnson, of the Entomology Research Division, U. S. Department of Agriculture, Washington D. C, most kindly invited me to describe a new bird-flea, material of which was found in the collections of the U. S. National Museum. The specimens of the new flea were collected from the nest of a barn swallow and are part of a series which constitutes the first record of fleas from the No...
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A Ph.D. dissertation completed by E.D. Cashatt in 1968 entitled "Revision of the Chrysauginae of North America" does not meet the criteria of publication so the new taxa described therein are not available per the International Code of Zoological Nomenclature. In order to validate the taxa proposed in that document we formally describe and illustrate the following: Arta brevivalvalis Cashatt, s...
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Recent surveys of belowground fungal biodiversity in México and USA have revealed many undescribed truffle species, including many in the genus Tuber. Here we describe seven new species: Tuber beyerlei, T. castilloi, T. guevarai, T. lauryi, T. mexiusanum, T. miquihuanense and T. walkeri. Phylogenetic analyses place these species within the Maculatum group, an understudied clade of small truffle...
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This companion paper to the Position of the American Dietetic Association and Dietitians of Canada: Vegetarian Diets, presents a new food guide for vegetarians. Two graphic formats are presented, a rainbow and a pyramid. The guide will assist vegetarians in choosing diets that meet recent recommendations established by the Institute of Medicine for nutrients including protein, iron, zinc, calci...
متن کاملLichens
What are lichens? The term lichen refers to a symbiotic association between a filamentous fungus, the ‘mycobiont’, and at least one photosynthetic organism, the ‘photobiont’, consisting of a micro alga, a cyanobacterium, or both (Figure 1). Although the symbiotic nature of lichens was first revealed in 1867, the development of a lichen thallus is often so integrated (Figure 1D) that they have b...
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ژورنال
عنوان ژورنال: Bulletin of the Torrey Botanical Club
سال: 1908
ISSN: 0040-9618
DOI: 10.2307/2479222