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3 edition of Megaspores and A Palynomorph From the Lower Potomac Group in Virginia. found in the catalog.

Megaspores and A Palynomorph From the Lower Potomac Group in Virginia.

Smithsonian Institution

Megaspores and A Palynomorph From the Lower Potomac Group in Virginia.

by Smithsonian Institution

  • 301 Want to read
  • 38 Currently reading

Published by s.n in S.l .
Written in English


Edition Notes

1

SeriesSmithsonian contributions to paleobiology -- 49
ContributionsHueber, F.
ID Numbers
Open LibraryOL21711548M

  Airborne marine biologists were dazzled by the diversity and abundance of large, unusual and sometimes endangered marine wildlife on a recent trip to the Northeast Canyons and Seamounts National. megaspores and Pediastrum coenobia, suggest a relatively nearshore, deltaic environment of deposition with freshwater influence. The presence of reworked striate bisaccates of Permo-Triassic age above horizon P indicates post-Aptian erosion of Upper Ecca or Beaufort Group sediments formerly existing to the west of their present outcrop positions.

This study was undertaken to determine the sensitivity of grape downy mildew (DM, Plasmopara viticola) and powdery mildew (PM, Erysiphe necator) to commonly used single-site fungicides in Virginia and nearby states. DM and PM isolates were collected from to In grape leaf disc bioassays, 92% of the DM isolates were QoI (azoxystrobin.   Abstract. The fossil record of Marsilea is challenging to assess, due in part to unreliable reports and conflicting opinions regarding the proper application of the names Marsilea and Marsileaceaephyllum to fossil leaves and leaflets similar to those of modern ens examined for this study include material assigned to Author: Elizabeth J. Hermsen.

Answer to since dimorphism is a property of fungi, how do you account for the fact that molds grow preferentially in vitro rather than in vivo? MD Biodiversity Google Group; Maryland Plant Atlas; MD/DCRC Abridged Database; Stewart and Robbins () eBird; Sites. Andelot Farm; Chino Farms; Fort Smallwood Park; Horn Point Laboratory; Howard County Conservancy; Jemicy School; Rocky Gap State Park; Weinberg Park.


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Megaspores and A Palynomorph From the Lower Potomac Group in Virginia by Smithsonian Institution Download PDF EPUB FB2

Download BibTeX citations. @book{bhl, title = {Megaspores and a palynomorph from the lower Potomac group in Virginia }, volume = {no ()}. Megaspores and a Palynomorph from the Lower Potomac Group in Virginia Francis M. Hueber Introduction The present study grew out of finding speci­ mens of the megaspore species Arcellites disciformis (Miner) Ellis and Tschudy during a routine examination of a collection of fossil plants I made in My original interest in the collection.

Megaspores and a palynomorph from the lower Potomac group in Virginia Item Preview remove-circle Megaspores and a palynomorph from the lower Potomac group in Virginia by Hueber, Francis M.

Publication date This book is available with additional data at Biodiversity Heritage Library. Megaspores and a Palynomorph from the Lower Potomac Group in Virginia [Francis M Hueber] on *FREE* shipping on qualifying : Francis M Hueber.

Get this from a library. Megaspores and a palynomorph from the lower Potomac Group in Virginia. [Francis M Hueber; Smithsonian Institution.]. Megaspores and a palynomorph from the lower Potomac Group in Virginia (Smithsonian contributions to paleobiology) Paperback – January 1, by Francis M Hueber (Author) See all formats and editions Hide other formats and editions.

Price New from Used from Author: Francis M Hueber. Megaspores and Palynomorphs from the Lower Potomac Group of Maryland, U.S.A Article in International Journal of Plant Sciences (4). Megaspores and a palynomorph from the lower Potomac Group in Virginia by Francis M.

Hueber 1 edition - first published in Not in Library. Palynology is literally the "study of dust" (from Greek: παλύνω, translit. palunō, "strew, sprinkle" and -logy) or of "particles that are strewn".A classic palynologist analyses particulate samples collected from the air, from water, or from deposits including sediments of any age.

The condition and identification of those particles, organic and inorganic, give the palynologist clues to. field County, Virginia, south of Richmond on the James River at the north end of Drewrys Bluff, approximately 9 m above high tide level.

Stratigraphic position: Potomac Group (un- differentiated), upper Zone I of Brenner (1 ), Lower Cretaceous, probably Aptian.

DESCRIPTION-Plantsconsisting of slender branching stems that bear opposite and de. Palynomorph definition is - a microscopic fossil composed especially of pollen or spores. Studies of fossil pollen and leaves from Lower Cretaceous rocks, including the Potomac Group of Maryland and Virginia, provide direct evidence on the course of early evolution in.

Hueber, F. Megaspores and a Palynomorph from the Lower Potomac Group in Virginia. Smithsonian Institution Press,Smithsonian Contributions to Paleobiology, Number 69 pages with 24 plates. Softbound, xlib, good condition. $ palynomorph (plural palynomorphs) (paleontology) An organic microfossil: a particle of micrometers in diameter, found in sedimentary deposits and composed of organic material.(botany) Any spore (derived from fungi, algae or spore-bearing embryophytes) or pollen grain (derived from seed-bearing embryophytes).

The Biodiversity Heritage Library works collaboratively to make biodiversity literature openly available to the world as part of a global biodiversity community. Megaspores and a palynomorph from the lower Potomac group in Virginia. View Metadata. By: Hueber, Francis M - Smithsonian Institution.

Find the full book in @BioDivLibrary. The endospore is well-developed below the exospore in mature spores. The megaspores are trilete, usually with a well-developed equatorial flange and a differentiated girdle on the distal face, adjacent to the flange.

Hueber, F.M. Megaspores and a palynomorph from the Lower Potomac Group in Virginia. Smiths. Contrib.

Paleo. 1– Francis M Hueber - Megaspores and a palynomorph from the lower Potomac Group in Virginia (Smithsonian contributions to paleobiology) - Published: Francis MacDonald Cornford - Plato and Parmenides - Published: Start studying Plant Biology: GYMNOSPERMS.

Learn vocabulary, terms, and more with flashcards, games, and other study tools. The assignment of leaves from the Lower Cretaceous of Spain within semi-aquatic ferns of Familiy Marsileaceae (sensu Kramer, ) is based on the presence of small pinnately compound leaves with rounded leaflets (Fig.

3A to C) connected to a basal petiole (Fig. 3F) and leaflets that present a single vein pattern consisting of dichotomous and anastomosed veins Cited by: 2. Other articles where Palynomorph is discussed: palynology: study of organic microfossils (palynomorphs) extracted from ancient coals.

wells with available slides in the Group I release and the map in Figure 1 for locations of these wells. Loan and examination policy for these slides is the same as is set forth in this report. National Petroleum Reserve in Alaska Microscope Slides (Group II Release) A second group of 2, palynomorph and 6, ForaminiferaAuthor: Roger J.

Witmer.The book's webpage at Wiley; Part I: Bioinformatics: Analyzing DNA, RNA, and Protein Sequences. Chapter 1: Introduction; Chapter 2: Access To Information; The fungi include include the best-characterized eukaryotic organism.

Start studying Chapter 4. Learn vocabulary, terms, and more with flashcards, games, and other study tools.