 | Maryland Geological Survey - 1911 - 744 Seiten
...Schizaaacese from eastern North America. Annals of Botany, vol. xxv, 1911, pp. 193-198, tf. 1, pi. xli. . A revision of several genera of gymnospermous plants...1911, pp. 289-318. . A revision of the fossil ferns from the Potomac Group which have been referred to the genera Cladophlebis and Thyrsopteris. Proc.... | |
 | Karl Cäsar von Leonhard - 1911 - 808 Seiten
...fossil cycads. V. (L) -158Rothpletz, A.: Ueber Algen und Hydrozoeu im Silur von GotSeite Berry. EW: A revision of several genera of gymnospermous plants from the Potomac group in Maryland and Virginia (L) - 322 — A revision of the fossil plants of the genera Acrostichopteris, Taeniopteris , Nilsonia... | |
 | Virginia. Division of Mineral Resources - 1912 - 850 Seiten
...Schizaeacese from eastern North America. Annals of Botany, vol. xxv, 1911, pp. 193-198, tf. 1, pi. xii. — . A revision of several genera of gymnospermous plants...pp. 289-318. — . A revision of the fossil ferns from the Potomac Group which have been referred to the genera Cladophlebis and Thyrsopteris. Proc.... | |
 | Virginia. Division of Mineral Resources - 1912 - 316 Seiten
...Schizaeacese from eastern North America. Annals of Botany, vol. xxv, 1911. pp. 193-108. tf. 1, pi. xii. . A revision of several genera of gymnospermous plants...1911, pp. 289-318. . A revision of the fossil ferns from the Potomac Group which have been referred to the genera Cladophlebis and Thyrsopteris. Proc.... | |
 | United States National Museum - 1912 - 156 Seiten
...species of shells from Bermuda. By William Healey Dall and Paul Bartsch. pp. 277-288, pi. 35. No. 1821. A revision of several genera of gymnospermous plants from the Potomac group in Maryland and Virginia. By Edward W. Berry, pp. 289-318. No. 1822. Descriptions of three new fishes of the family Chsetodontidse... | |
 | United States National Museum - 1912 - 154 Seiten
...species of shells from Bermuda. By William Healey Dall and Paul Bartsch. pp. 277-288, pl. 35. No. 1821. A revision of several genera of gymnospermous plants from the Potomac group in Maryland and Virginia. By Edward W. Berry, pp. 289-318. No. 1822. Descriptions of three new fishes of the family Cha»todontidse... | |
 | Geological Survey (U.S.) - 1912 - 170 Seiten
...Atlantic and Gulf coastal plain. Am. Philos. Soc., Proc., vol. 50, pp. 301-315, 4 figs., 1911. 102. A revision of several genera of gymnospermous plants from the Potomac group in Maryland and Virginia. US Nat. Mus., Proc., vol. 40, pp. 289-318, 1911. 103. A revision of the fossil ferns from the Potomac... | |
 | Virginia State Library, Earl Gregg Swem - 1916 - 756 Seiten
...Philadelphia, Carey, Lea & Carey 1828. E165 B53. 374 2v. In 1. 8vo. In Virginia: Chapter 14. Berry, Edward W. A revision of several genera of gymnospermous plants from the Potomac group in Maryland and Virginia. Qll U5 P. 375 (In US National museum. Proceedings. Washington. 1911. v 40 p. 2S9-31S) — i — Revision... | |
 | Virginia State Library - 1916 - 788 Seiten
...Philadelphia, Carey, Lea & Carey, 1828. E165 B53. 374 2v. In 1. 8vo. In Virginia: Chapter 14. Berry, Edward W. A revision of several genera of gymnospermous plants from the Potomac group in Maryland and Virginia. Qll U5 P. 375 (In US National museum. Proceedings. Washington, 1911. v. 40. p. 289-318) ——Revision... | |
 | Albert Charles Seward - 1917 - 686 Seiten
...xxv. p. 193. (II2) The Flora of the Raritan Formation. Geol. Sun: New Jersey, Hiill. 3. — — (Il4) A Revision of several genera of Gymnospermous plants...the Potomac group in Maryland and Virginia. Proc. US Nat. Mus. vol. XL. p. 289. (12) The age of the plant-bearing shales of the Richmond coalfield. Amer.... | |
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A revision of the fossil ferns from the Potomac group which have been referred to the genera Cladophlebis and Thyrsopteris. 
